Armstrong Emech F3 Instruction manual

Emech
®
Hot/Cold Water Mixing Valve
Model F3 Flanged
Installation, Operation &
Maintenance Manual
Please read and save
these instructions
205-EN-D117922

Section / Description
Page
INTRODUCTION.................................................................................................................................................................... 3
1.0 HOT/COLD WATER MIXING VALVE -MODEL F3 FLANGED – DATASHEET ............................................................... 4
Dimensions Parts and Material……………………………………………………………..................................................…5
Technical Data ................................................................................................................................................................. 6
Operating Torque……………………………………………………………………………………………………………..........7
Flow Characteristics .....................................................................................................................................................8, 9
Operating Characteristics ...............................................................................................................................................10
2.0 INSTALLATION .............................................................................................................................................................. 11
2.1 Recommended Installation…………………………………………………………………………………………….…..12 ,13
3.0 MAINTENANCE – DISMANTLING ................................................................................................................................. 14
4.0 MAINTENANCE – REASSEMBLY……………………………………………………………………………..................15, 16
5.0 MOUNTING EMECH G1 ACTUATORS………………………………………………………………………........…17, 18, 19
IMPORTANT NOTICE .......................................................................................................................................................... 20
LEGAL DISCLAIMER........................................................................................................................................................... 21
Contents
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
2
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.
NOTES............................................................................................................................................................................22, 23

Congratulations on selecting the Emech™ product from Armstrong. Armstrong devotes considerable
care and attention to the design of its products. To obtain the best performance from them, the customer
should read this manual from cover to cover. It contains important installation and operating instructions.
The customer must strictly adhere to the safety tips, troubleshooting advice, cautions and warnings
appearing throughout this manual. Along with the warnings, instructions and procedures in this manual,
the customer should also observe such other procedures generally applicable to equipment of the same
type.
If the customer does not follow these and other such warnings, instructions and procedures, the product
may not perform as expected. More seriously, it may cause property damage, personal injury, production
down-time and other losses.
The customer should train its employees and contractors in the safe use of Armstrong products in
relation to the customer’s specific application. If the customer does not understand a point in this
manual, contact Armstrong or its authorized representative.
Introduction
Introduction
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
3
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

F3 Flanged Valve General Features
The Emech valve utilizes zirconia shear action disc
technology to provide tight shut-off, high pressure
differential capability, and long life integrity.
Combined with the Emech electronic actuator, high
performance stand-alone closed loop temperature
control is possible.
The extremely hard nature of zirconia produces
outstanding resistance to wear and cavitation damage
compared with conventional elastomer and plastic seated
valves, minimizing seal replacement requirements and
plant down time.
Valve Features
Features of the Emech G1 Actuated Digital Mixer
• Analog (4-20mA input and output ports)
Electrical stepper motor control
Speed, position, and acceleration control
User defined ‘2-speed’ stroke can eliminate water hammer
Precise positioning achieving 0.03° valve seat placement
Local closed loop control of temperature
External RS232 connection (cable supplied) communication for special
mode configuration.
Local/remote control options
Two operating modes: Stand-alone control via onboard keypad or
remote control via external 4-20mA
Failsafe position feedback (non-contact absolute encoder)
Keypad: 4 membrane switches with ‘dual touch’ safety features
Display: 3.5 digit LCD display with back light
Push button power switch providing soft start
electronic control
ee CPAC0002 IOM for details about the Emech G1 Digital Actuator)
Emech Electronic Mixing Control
The Emech F3 3-port flange valve can be fitted with the
Emech G1 electronic actuator, and Emech temperature
probe. The calibrated temperature probe (NTC) fits the
tapping in the outlet port, and connects via cable for the G1
actuator. With this temperature feedback signal, the G1
actuator provides temperature control accuracy
+/-0.9°F (0.5°C) over 32°-212°F (0°-100°C) control range.
Even with sudden changes of inlet pressure and
temperature to the valve, the G1 actuator aggressively
minimizes outlet temperature variations. Contact
Armstrong for this and other mix control options.
ISO 5211, 5210 actuator flange mounting •
Constructed of CF8M (316) stainless steel
•
•
Zirconia Disc: Durable and corrosion resistant
•
End connection 150 Class Flanges
•
•
Elastomer seal material options
Top entry allows inline access to internal valve parts
•
•
Size range: 2”(50mm)
Temperature range:-13°F to 257° (-25°C to 125°C)
•
Rated Pressure: 145psi (10bar), designed to ASME B16.34 •
•
Bubble Tight (zero leakage) shut off*
•
Manual handle option lockable in both open closed position
Manual handle kit includes stroke limiting feature (S
Handle can be
padlocked
in the open or closed
position and can be
‘stroke limited’
Graduated scale
on the handle
1/8” NPS port in the outlet for fitting
temperature sensor or gauge
Low torque 230°stroke
operation including ‘all
ports closed’ position
Manual override
handle
(not shown)
Push button
power switch
Graduated visual
indicator on shaft
coupling
Temperature
sensor
Local keypad and
temperature display with
hinged magnetic latching
lockable cover
Epoxy powder
coated aluminum
enclosure designed
to Nema 4 (IP65)
Constructed of
CF8M (316)
stainless steel
1.0 - Hot/Cold Water Mi xing Valve- Model F3 Flanged
Datasheet
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
4
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Emech F3050R Flange – Standard Model Codes
Valve Model Code
Description
End Connection
Hot/Cold Water Mixing Unit Model Code
F3050R
F3050R 2”Flange
Class 150 Flange
E50WR
The Hot/Cold Water Mixing Units includes Valve, Actuator, Mounting Kit, Serial Cable, Temperature Sensor, Spanner and all
relevant IO
ITEM NO
QTY
DESCRIPTION
MATERIAL
1
1
Body
CF8 M (316) Stainless
2
2
Pin
Stainless Steel 316
3
2
Inlet Energizers
Silicon Rubber
4
1
Disc Energizer
Silicon Rubber
5
1
Bottom Dis c
Trim Dependent
6
1
Top Disc
Trim Dependent
7
1
Spindle
Stainless Steel SS
8
1
Top Wear Ring
Trim Dependent
9
1
Bottom Wear Ring
Trim Dependent
10
2
O-Ring Spindle
Trim Dependent
11
2
Thrust Washer
C-Cr Steel
12
1
Needle Roller Bearing
C-Cr Steel
13
1
Gland Nut
Stainless Steel SS
14
1
O-Ring Gland Nut
Trim Dependent
15
1
O-Ring Gland Nut
Trim Dependent
16
1
Bonnet
CF8M (316) Stainless
17
8
Screw Body/Bonnet
Stainless Steel 304
18
1
Screw Locking
Stainless Steel 304
19
1
Nameplate
Stainless Steel 316
20
2
Screw Hammer Drive
Stainless Steel 316
21
1
O-Ring Body/Bonnet
Trim Dependent
F3050R SPARE PARTS AND ACCESSORIES
PART NUMBER
DESCRIPTION
CPSK0022
Seal Kit
D85626
Disc Set
CPAC0021
Sensor
CPMV0089
Gland Nut Spanner
SPARE PARTS INCLUDED IN VALVE TRIM
ITEM NO
CPMV0296
Body
1
CPME0080
Locating Pins x 2
2
CPMV0020
Spindle
7
CPMV0072
Gland Nut
12
CPMV0101
Bonnet
13
Actuator Options
Model Code
Description
Electric Options
G13
G13 885 in.lb (100Nm)
Manual Options
CPSK0004
Handle Kit F3/040/050
This is the standard
orientation of the actuator,
facing the outlet port.
Other orientation can be
specified at the time of order.
Hot Port
Cold Port
Outlet Port
Armstrong International
221 Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
5
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.
Hot/Cold Water Mixing Valve- Model F3050R
Dimensio ns-Parts and Materials

Operational Stroke °rotational
With Handle Kit 230
With Actuator 350
Flange Size (150 Class)
Inlet 2” (50mm)
Outlet 2-1/2” (65mm)
Flow Characteristics – 2 Ports Open (160°)
Cv (Kv): USgpm at dP=1 psi, 68°F (m3/h at dP=1 bar, 20°C) 8.1 (7) 47.5 (41.3)
Flow @ 29psi dPUSgpm (lpm) 257 (973)
Minimum controllable flow* U.S. Gpm (lpm)
*With Emech G1 actuator 19.0 (70)
Flow characteristics - 2 Ports Open (90° open)
Cv (Kv): USgpm at dP=1 psi, 68°F (m3/h at dP=1 bar, 20°C) 40.3 (35)
Flow @ 29psi dP U.S.gpm (lpm) 218 (825)
Leakage Characteristics
The Emech zirconia discs shear action valves have bubble tight (zero leakage) shut-off.
The Emech seat seal performs beyond the requirements of ANSI B16.104 and FCI 70-2 Classes V and VI.
Body Pressure Rating - Designed to ASME B16.34
Operating Pressure @ <257°F (125°C) psi (bar) dPmax 145 (10)
Physical Characteristics Weight (approximate) lbs (kg)
Valve only 42 (19)
Valve and Emech G1 Actuator 71 (33)
Valve Topworks Dimensions For Actuator Mounting (Spigot/bolts as per ISO 5210/ISO 5211)
Shaft/Stem Connection sw.std (mm) 0.55” (14)
Topworks 4 holes PCD (mm) 2.76” (70)
Topworks, PCD hole Ø inch (mm) 0.33” (8.5)
Topworks, Spigot diameter inch (mm) 2.17” (55.1)
Valve mounting restrictions None
NOTES:
(1) The G13 is recommended for the F3 size 2” (50 mm) valve.
(2) All specifications are for water.
(3) Flows are quoted without terminal fittings, restrictors, or non-return valves on the inlets. (Non-return valves are recommended.)
(4) If operating at more than one maximum rated condition, contact Armstrong to confirm the application is appropriate.
Definitions:
dP Differential pressure across the valve from inlet to outlet.
dP max. Maximum allowable valve closed differential pressure across the valve from inlet to outlet Operating
Pressure Valve body pressure rating.
The following table is Armstrong’s recommendation for trim selection
Compound Maximum recommended fluid
temperature in Emech valves Application Compound compatibility recommendations
EPDM -13° to + 257°F (-25° to +125°C All Water and Glycol
applications
Water, hydroxides, solvents, alcohols,
several acids, ketone & silicon oils
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
6
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.
Hot/Cold Water Mixing Valve- Model F3050R
Techn ical Data

F3 Break Open Torques
Break Open Torque
F3 Break Open Torque
Closed Pressure (psi)
Note:
1.
The charted seating and unseating torques are the sum of all friction and resistance for
opening and closing of the disc against the indicated pressure differential for normal
service
2.
The relationship between values are linear, and can therefore be interpolated between nominated values.
3.
The effect of dynamic torque is not considered in the table.
4.
In sizing operators it is not necessary to include safety factors.
5.
Break-open torques are approximately equal to the shut-off torques.
The charted values are based on clean liquid service at temperatures between 32°F to 212°F (0°C to
100°C) with no internal deposition or chemical attack, operated a minimum of once a day.
*
For conditions that vary from those noted above, apply the following application factors.
Note: The above factors are cumulative but never more than 2 x the value shown in the Break Open Torque tables above.
Valve
Size
Shut off Pressure (psi)
0
72.5
145
050R F3
132 217
302
* Frequency of operation
Service conditions
< once per day
+15%
Dry service
+30%
< once per week
+25%
Light slurry semi-solids
+40%
< once per month
+40%
Heavy slurry and some solids
+70%
< once per year
+80%
Temperature -13°F to 14°F (-25°C to -10°C)
+40%
14°F to 32°F (-10°C to 0°C)
+15%
Over 212°F to 257°F (100°C to 125°C)
+30%
Hot/Cold Water Mixing Valve - Model F3 Flanged
O perating Torque
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
7
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Metric flowrate co-efficients - Cv values
Valve size
(Inch)
Valve Opening (Degrees)
10
30
60
90
120
150
160
170
200
230
260
270
300
330
350
2" 0.0 20.1 30.2 40.3 43.4 46.5 47.5 46.5 43.4 40.3 36.9 26.8 16.8 6.7 0.0
Note:
1) Cv = The flow rate of water in U.S. gpm that will pass through a valve with a pressure drop of 1 psi @ 68°F.
2) When the F3 valve is opened between 110° and 210° the valve is mixing. In this range use ∆P average in the sizing formula.
3) For accurate sizing for temperature control mixing see Armstrong website for sizing program.
Simplified sizing formula
LIQUID WHERE: P average =
+

Cv (1 port) = Q
�.

Cv (mixing) = Q
�..

(
1
9.
0
US
gp
m
)
F3 Flow chart
10,000
1,000
100
10
1
0
0.01
0.1
1
10
100
1000
P Average Pressure drop across valve (PSI)
Outlet
flow
rate
(USgpm
)
I
NTE
R
MI
TTENT U
S
E
D
O
N
O
T
O
PE
R
A
TE
V
A
L
V
E
I
N T
H
I
S
Z
O
NE
Notes: 1. P average is the sum of the pressure drop across each port (A and B) divided by 2.
2. Outlet flow rate is with the valve at 160° open (maximum Cv).
3. “ “ indicates the minimum controllable flow rate with an Emech G1 “factory default” actuator.
(for applications outside these conditions contact Armstrong International)
Q= Flow through valve (USgpm)
S.G. = Specific gravity (water = 1)
P = Pressure drop across open valve ports (psi)
Hot/Cold Water Mixing Valve - Model F3 Flanged
Flow Characteristics - PSI
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
8
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Metric flowrate co-efficient - Kv values
Valve size
(mm)
Valve Opening (Degrees)
10 30 60 90 120 150 160 170 200 230 260 270 300 330 350
50 0.0
17.5
26.3
35.0
37.7
40.4 41.3 40.4
37.7
35.0
32.1
23.3
14.6
5.8 0.0
Note:
1) Kv = The flow rate of water in m3/hr that will pass through a valve with a pressure drop of 1 bar (100kpa) @ 20°C.
2) When the F3 valve is opened between 110° and 210° the valve is mixing. In this range use ∆P average in the sizing formula.
3) For accurate sizing for temperature control mixing see Armstrong website for sizing program.
Simplified sizing formula
LIQUID HEAD LOSS WHERE:
P average
= + 

Kv (1 port) = Q
�.

HL (1 port)
=. 
..
Kv (mixing) = Q
�..

HL (mixing)
=. 
..
(70.0 lpm)
1,000
100
10
1
0
0.001
0.01
0.1
1
10
100
P Average Pressure drop across valve (Bar)
Outlet flow
rate
(lpm
)
I
NTE
R
M
I
TTENT U
S
E
D
O NOT OPE
R
A
TE
V
A
L
V
E
I
N TH
I
S
Z
ONE
Notes: 1. P average is the sum of the pressure drop across each port (A and B) divided by 2.
2. Outlet flow rate is with the valve at 160° open (maximum Kv).
3. “ “ indicates the minimum controllable flow rate with an Emech G1 “factory default” actuator.
(for applications outside these conditions contact Armstrong International)
F3 Flow chart
10.000
Q = Flow through valve (m
3
/hr)
S.G. = Specific gravity (water = 1)
P = Pressure drop across open valve ports (bar)
HL = Head loss (m)
Hot/Cold Water Mixing Val ve- Mo del F3 Flanged
Flow Characteristics- Bar
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
9
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Representation of typical flow, pressure and temperature characteristics of the F3 valve through 215° of rotation.
NOTE: The valve is CLOSED
(shut off) when the spindle
notch aligns with the ‘0’ mark.
(shown here with handle kit removed)
Hot/Cold Water Mixing Valve - Model F3 Flanged
O perating Characteristics
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
10
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Nozzle load orientations
CAUTION: Prior to installation ensure that the pipes leading to the valve are clear from debris which
may block or damage the valve on commissioning.
WARNING: Only trained personnel familiar with pipe work and pressure systems should install and
maintain Emech equipment. Failure to do so may result in serious personal injury!
WARNING: Depressurize pipe work to atmospheric pressure and drain all fluids from the pipe work before
working on the valve. Failure to do so may result in serious personal injury!
WARNING: Ensure that the intended maximum operating pressure of the line does not
exceed the pressure rating of the valve. Failure to do so may result in
serious personal injury!
WARNING: Check valves are strongly recommended upstream of the valve inlets. Failure to install them may
cause undesirable back-flow and may result in serious personal injury and equipment damage!
Table 2.1: Maximum Nozzle Forces and Moments
Valve size Force – Fx Fy FzMoment – Mx My Mz
2” (50mm) 450 lbf.in (2000 Nm) 5310 lbf.in (600Nm)
2.0 Hot/Cold Water Mixing Valve - Model F3 F langed
Installation
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
11
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Recommended Installation
Step 1: Location Considerations
For the F3 flange valve mounted with an Emech G1 electronic actuator ensure the
installation location offers suitable access to the electrical connection terminals, the
manual override handle, actuator power switch, display and keypad.
Do not install the actuator near or in high pressure wash down areas. The units must
NOT be installed upside down. For manually operated F3 flange valves ensure suitable
access to the handle for safe operation.
Step 2: Recommended Installation
See Figure 2.6 (page 15) for a recommended F3 valve installation schematic.
MUST HAVE
• Check valves (poppet style) MUST be fitted
upstream of the valve inlet ports and as close
as practicable to the inlets.
• Pipe work adequately supported.
• A 24Vdc regulated power supply.
RECOMMENDED
• Isolation valves are RECOMMENDED on the supply lines.
• A failsafe solenoid operated spring to close isolation valve linked at an external temperature switch post valve
outlet is highly RECOMMENDED for over temperature failure modes (see item 2 on figure 2.6).
• Ensure mechanical protection of the wiring (e.g. use armour conduit).
• It is RECOMMENDED to place wiring in screened conduit or cables.
• Ensure pipe works are straight for as long as practicable to the Emech valve inlets and any cable conduit is
fully sealed on both ends against water ingress.
• Use appropriate inlet pipe diameters and supply pressure to cope with required application flows.
CONSIDERATIONS
• Consider strainers if water supply carries pipe scale or other particulates
that may damage valve seat and seals.
• Consider gauge points for temperature and pressure on inlets and outlets.
Manual Operations Considerations
• By setting the position of the “stroke limiting” stop, an approximate maximum temperature setting can be
made. This is a safety feature to minimize the possibility of operator injury. Handle kits are supplied with fitting
instructions (CPMI0029).
• The flow rate control can be achieved by either a throttle valve on the inlets or outlet, or by presetting the sup-
ply pressures. For most circuits throttle valves at the mixing valve inlets work best.
NOTE: The Emech E50WR Model code, is shipped fully assembled and factory set to the customers
requirements specified at time of purchase.
2.1 - Hot/Cold Water Mi xing Valve- Mo del F3 Flanged
Recommended Installation
Continued....
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
12
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
13
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

CAUTION!
Before dismantling the Emech™ valve,
ensure all upstream and downstream
pressurized pipe work is isolated
approximately. Ensure the pressure
and fluids are drained from the valve
and pipework.
Remove the gland nut locking screw
(image 1).
Fit the gland nut wrench into the two
holes provided in the top of the gland
nut and unwind counterclockwise to
remove the gland nut from the bonnet
(image 2).
Use an allen wrench to remove the
allen cap screws that fasten the bonnet
to the body (image 3).
Carefully remove the bonnet from the
body particularly if the valve is mounted
in a vertical position.
The spindle may detach from the
rotating disc and remain in the bonnet,
this will need to be removed (image 4).
Note:
The rotating disc is not fastened to the
spindle. Take care that the rotating disc
is not dropped as the bonnet assembly
is removed (image 5).
The spindle may separate the two
discs. In which case remove the bottom
disc. If the discs are stuck together,
remove both from the valve body.
Check that the thrust washers and
needle roller bearing assembly is on
the spindle (image 6). You may have to
remove these from the bonnet bore.
Remove the two O-rings and two wear
rings from the spindle.
Remove the bonnet/body seal, and the
three energizer seals found under the
discs (image 7). Inspect the pins and
check for wear.
Replace if worn. See page 6, Spare
Item 3 for replacement pins.
Clean all grease and dirt from parts not
being replaced. Ensure that the spindle
seal surfaces are protected from
damage while the valve is
disassembled (image 8).
3.0 - Hot/Cold Water Mixing Valve- Model F3 Flange
Mainten ance - Disassembly
2
Gland Nut
Wrench
1
Locking
Screw
Allen Cap screws
3
Spindle
4
Rotating
5
O-rings
Thrust
Washer
Needle Roller
Bearing
Wear Rings
6
7
Bonnet/Body Seal
Energizer Seals
8
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
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Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
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PREPARATION:
Ensure the assembly area is
completely dirt free. Ensure that the
valve parts are clean and ready to be
reassembled. Check all valve parts
for damage or wear.
NOTE:
The energizers are not symmetrical.
Correct orientation will allow the
energizers to be inserted easily with
no distortion. Lightly grease the
energizer seals before fitting
In the valve body fit the bonnet/body
seal and energizer seals (image 2)
NOTE:
Wash the discs thoroughly.
Place the bottom disc onto the valve
body. Make sure the disc is placed
right side up as shown in (image 3).
Apply a thin layer of grease on the
bottom of the rotating disc.
Place the rotating disc on the bottom
disc and bed it down by rotating one
on the other (image 4)
NOTE:
The spindle is not symmetrical and
inserts in only one orientation.
Ensuring the spindle grooves are
clear of dust or dirt, check that the
spindle fits neatly into the slots on
the top disc. If the spindle does not
sit flat, check for burring on the lugs
and remove if necessary (image 5).
Fit the top and bottom Wear rings
before fitting the O-rings onto the
spindle. Apply a light even coat of
grease to the Wear rings and the
O-rings (image 6).
Check the fit of the spindle in the
bonnet (image 7) then remove and
place on the top of the disc
(image 8).
Lightly grease both sides of the
thrust washer and place on the
spindle. Place on the needle roller
bearing (image 8) and apply further
grease (approx. 60% of the void
space). Lightly grease both sides of
the second thrust washer and place
on the bearing.
4.0 - Hot/Cold Water Mixing Valve- Model F3 Flange
Maintenance - Reassemb ly
1
2
3
4
5
7
8
Energizer Seals
Bonnet/Body Seal
Bottom Disc right side up
Rotating Disc
Wear Rings
O-rings
Thrust
Washers
Needle Roller
Bearing
Wear Rings
O-Rings
6
Continued...
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Designs, materials, weights and performance ratings are
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9
10
11
12
13
14
Grease the bores of the bonnet. Align
the discs with the spindle on top
before gently lowering the bonnet
over the spindle down to the body
(image 9).
Secure the bonnet to the body with
the allen cap screws using an allen
wrench (image 10).
Tighten the allen cap screws as per
torque values given in table 4.1.
Rotate the spindle one full rotation.
The movement should be smooth
and even with no variation in torque.
Grease the O-rings for the gland nut.
Insert the inside O-ring in the gland nut
and then the external O-ring (image11)
Grease the thread of the gland nut
before inserting the gland nut into the
bonnet.
With the gland wrench provided, screw
the gland nut down until it bottoms out.
Do not over-tighten! (Image 12).
Back off the gland nut 12 to 14
notches. If the notch does not align
with the locking screw head, back the
gland nut off further to align.
Insert the locking screw after
applying a thread locking adhesive
(e.g. Loctite 262) (image13)
Tighten the locking screw as per the
torque values given in table 4.1.
Note: Rotate the spindle 1-2 times to
ensure the operating torque is
constant, and the rotating action is
smooth.
NOTE: The valve MUST be in the
CLOSED position before mounting
the actuator or handle kit (image 14).
The groove on the spindle must
point towards the “0” mark on the
valve
Spindle Groove
Valve “0” Mark
Valve in CLOSED position
Locking Screw
Inside O-ring
Outside O-ring
See section 5.0 for EmechG1 actuator mounting kit. Note: Handle kits are supplied with separate assembly instructions.
Table 4.1: Nominal Tightening Torques for Lubricated Stainless Allen Cap Screws
Screw Size Torque (inlb) Torque (Nm)
#10-24 49 5.5
3/8” 345 39
Table 4.2: Recommended Lubricant
Description Manufacturer/Model Code Used for:
Premium Food Grade PTFE Grease mx6INOX Ceramic discs; O-
rings; Wear rings; Bonnet bore
Lubrication; Roller thrust bearing lubricant
All Stainless Steel Fasteners
Notch
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
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Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

1.0 Preparing the actuator for assembly onto Emech™ valves
Before fitting the actuator to the valve assembly, ensure the actuator is in the zero position. All new or replacement
Emech actuators are shipped in the zero position. To check the actuator position or to re-zero an actuator follow
section 1.1 if a power supply is available or section 1.2 for manual re-zeroing.
1.1 Automatically zeroing the actuator (24Vdc power supply required)
Power on the actuator (a 24Vdc regulated power supply is required). Refer Section 3
of the G1 actuator installation, operation and maintenance manual for electrical installation.
With a temperature sensor connected to Port 1 of the actuator ensure the actuator is in
Temperature Controller mode (hold mode and press down (-) on the actuator keypad
to toggle between Positioner or Temperature mode). Now disconnect the temperature
probe from the actuator. The actuator will move automatically to the ‘zero’ position and
display “E2” on the keypad display.
G1 actuator keypad
1.2 Manually zeroing the actuator
If there is no power available to
‘zero’ the actuator it is possible to
use the actuator’s manual override
handle to adjust the actuator shaft
position.
The actuator ‘zero‘ is achieved
when the coupling keyway is at 45°
to the reference plane as indicated
in images 1 and 2.
2.0 Actuator mounting orientation
To accommodate installation space restrictions the actuator may be mounted to an Emech valve in any one of four
positions. The instructions provided in this document explain how to mount the actuator in the standard orientation for
each type of Emech valve. To mount the actuator in one of the other three off-set orientations (see figure 2.1) follow
the directions outlined in section 2.1.
2.1 Nonstandard mounting orientations
Ensure the valve is in the “0” position by following the
standard mounting instructions for the valve in the
relevant chapter of this document. When it comes to
placing the graduated coupling onto the valve spindle
orientate the coupling so the “0” mark aligns with the
desired off set direction as indicated in figure 2.1.
Continue with the standard mounting instructions.
Ensure the notch (zero indication on bracket) in the
actuator bracket aligns with the coupling “0” when the
actuator is fitted to the valve.
The valve and actuator will operate as per a standard mounting assembly
Actuator ‘zero ‘position
Coupling keyway
Reference plane 45°
Coupling keyway
45°
180° off set 90° off set
270° off set
Emech valve mounting flange
Standard
(Refer relevant
valve chapter)
Figure 2.1 Actuator mounting orientation
2
5.0 - Hot/Cold Water Mixing Valve- Mod el F3 Flanged
Mo unt ing Emech - G1 Actuators
Continued.....
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
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Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

The instructions below explain how to
mount the actuator facing the outlet
port as per (image 1)
Before mounting the actuator onto the
valve, set the Valve position to close,
this is done by pointing the groove on
the spindle points towards the
valve”0” mark (image 2) and the cold
port (image 3) which is the fully
closed position for the valve seats
and the default cold port.
If the actuator is to be mounted in
one of the other three positions,
rotate the graduated coupling so
that the “0” mark will line up with the
notch of the bracket (image 8) of
the actuator, when the valve is fully
coupled to the actuator.
DO NOT MOVE THE SPINDLE
FROM ITS ZERO POSITION
WHEN USING ONE OF THE
OTHER ACTUATOR
ORIENTATIONS.
Place the center coupling (image 7)
on the graduated coupling (image 8)
Continued….
Place the graduated coupling
(image 4) on the spindle & ensure
the “0” points to the outlet port
(image 5 & 6)
2
3
4
5
6
7
Groove
Valve “0”
mark
Groove
Cold Port
ZERO
Outlet Port
8
Centre Coupling
Graduated Coupling
1
Armstrong International
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Designs, materials, weights and performance ratings are
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Ensure the bonded washer (image 9)
is on the sensor (image 10).
Screw the sensor into the outlet port
of the valve (image 11) and tighten
before connecting the sensor to the
actuator.
Plug the sensor connector into the
actuator input port labelled “1” and
hand tighten (image12).
WARNING!! DO NOT USE A
WRENCH TO SCREW THE
SENSOR INTO THE ACTUATOR.
The actuator is now assembled
correctly (image 13).
Place the actuator on the valve in the
desired position (image 7). The zero
mark on the coupling (image 4)
should align with the notch on the
bracket (image 8).
Insert one M8 X 25 socket cap screw
into one of the mounting holes with
M8 Spring Washer and Nut. Insert
the remaining three cap screws and
fasten.
8
10
11
12
Notch
Bonded Washer
13
7
9
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
19
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.

Important Notice
Armstrong’s products are capable of being used in many different types of industrial applications and
operating environments. Consequently, Armstrong is only able to provide general guidelines concerning
the suitability and use of its products. It is not possible for Armstrong to provide specific guidelines for
specific applications and operating environments simply because there are too many of them. Therefore,
proper selection of a specific product for a specific application and operating environment, and its
compatibility with other equipment to which it is attached, is the customer’s responsibility. The customer
must assume the ultimate responsibility for the proper sizing, selection, compatibility, installation and
operation of Armstrong products. All operating parameters should be validated for the customer’s
application by a professional engineer, qualified installer or by another technical expert. Armstrong does
not warrant the performance of its products or their suitability for a particular purpose.
Although the information is believed to be accurate, Armstrong accepts no liability for any errors or
omissions. Armstrong has endeavored to provide timely information but it cannot represent that the
information is complete. The information shall not be deemed a warranty, representation or guarantee
concerning a product’s suitability or fitness for a customer’s specific purpose. Armstrong does not warrant
the information or any particular benefits that the customer will derive. It is the customer’s responsibility to
determine the suitability for its own use of the products described herein.
The customer must make its own independent judgment and assessment and should not rely upon any
opinions, interpretations, statements, assurances or representations given.
Because Armstrong is continually improving and upgrading its products, the specifications, dimensions
and information contained herein are subject to change without notice. This information is intended to
provide general guidance to the customer. For specific guidance or support, contact Armstrong or its
authorized representative.
Installation is entirely at the customer’s risk. Armstrong accepts no liability for direct, indirect, incidental,
special, or consequential damages resulting from the customer’s failure to follow Armstrong’s warnings,
instructions and procedures or such other procedures generally applicable to equipment of the same
type. The foregoing limitation extends to damages to person or property as well as loss of profits, loss of
products, loss of operations, the cost of alternative arrangements and loss of time, whether incurred by
the customer, its employees or a third party.
Armstrong products should be installed by qualified technicians only. Do not attempt installation unless
you are a qualified technician. Armstrong accepts no liability for damages resulting from faulty installation.
Nothing in this document is intended to cancel, modify or supersede the terms of the Armstrong Limited
Warranty and Remedy.
Armstrong International
221
Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone [phone] Toll Free (888) HOT-HOSE (468-4673)
20
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstrong international.com/emech for up-to-date information.