Emerson MR105 User manual

Introduction
This installation guide provides instructions for installation,
startup and adjustment. To receive a copy of the instruction
manual, contact your local Sales Ofce or view a copy at
www.sher.com. For further information refer to Type MR105
Instruction Manual, Form 5874, D103246X012.
P.E.D. Category
This product may be used as a pressure accessory with
pressure equipment in the following Pressure Equipment
Directive categories. It may also be used outside of the
Pressure Equipment Directive using sound engineering
practice (SEP) per table below. For information on the
current PED revision see Bulletin: D103053X012
PRODUCT SIZE CATEGORY
DN 25 / NPS 1 SEP
DN 50 / NPS 2 II
DN 80 / NPS 3 II
DN 100 / NPS 4 II
Specications
Available Constructions
Type MR105 with low-pressure actuator: Direct-operated
large multi-purpose regulator with 0.34 to 3.0 bar /
5 to 43 psig pressure range
Type MR105 with high-pressure actuator: Direct-
operated large multi-purpose regulator with 1.7 to 20.7 bar /
25 to 300 psig pressure range
Body Sizes and End Connection Styles
DN 25 and 50 / NPS 1 and 2: NPT, CL125 FF, CL250 RF,
CL150 RF, CL300 RF, CL600 RF and PN 16/25/40 RF
DN 80 and 100 / NPS 3 and 4: CL125 FF, CL250 RF,
CL150 RF, CL300 RF, CL600 RF and PN 16 RF
Maximum Inlet Pressures(1)
Low-Pressure Actuator: 27.6 bar / 400 psig
High-Pressure Actuator: 27.6 bar / 400 psig
Maximum Outlet Pressures(1)
Low-Pressure Actuator: 4.8 bar / 70 psig
High-Pressure Actuator(2): 27.6 bar / 400 psig
Maximum Emergency Casing Pressures(1)
Low-Pressure Actuator: 4.8 bar / 70 psig
High-Pressure Actuator(2): 27.6 bar / 400 psig
Maximum Setpoint(1)
Low-Pressure Actuator: 3.0 bar / 43 psig
High-Pressure Actuator:
Nitrile (NBR) and Ethylene Propylene (EPDM) Diaphragm:
20.7 bar / 300 psig
Fluorocarbon (FKM) Diaphragm: 10.3 bar / 150 psig
Outlet Pressure Ranges(1)
DN 25 and 50 / NPS 1 and 2:
Low-Pressure Actuator: 0.34 to 0.83 bar / 5 to 12 psig;
0.69 to 1.6 bar / 10 to 24 psig; 0.96 to 2.2 bar / 14 to 32 psig;
1.2 to 3.0 bar / 18 to 43 psig
High-Pressure Actuator: 1.7 to 4.1 bar / 25 to 60 psig(3);
3.0 to 6.9 bar / 43 to 100 psig; 5.2 to 12.1 bar /
75 to 175 psig(4); 7.6 to 20.7 bar / 110 to 300 psig(4)
DN 80 and 100 / NPS 3 and 4:
Low-Pressure Actuator: 0.34 to 0.55 bar / 5 to 8 psig;
0.55 to 1.4 bar / 8 to 20 psig; 0.83 to 2.1 bar / 12 to 30 psig;
1.2 to 2.7 bar / 18 to 39 psig
High-Pressure Actuator: 2.7 to 5.0 bar / 39 to 72 psig;
4.9 to 12.1 bar / 71 to 175 psig(4); 7.6 to 17.2 bar /
110 to 250 psig(4)
Temperature Capabilities(1)
Nitrile (NBR): -29 to 82°C / -20 to 180°F
Fluorocarbon (FKM)(5): -7 to 121°C / 20 to 250°F
Ethylene Propylene (EPDM)(6): -29 to 107°C / -20 to 225°F
Maximum Differential Pressures(1)
Liquid Application:
Low-Pressure Actuator:
DN 25 and 50 / NPS 1 and 2: 13.6 bar / 200 psig
DN 80 and 100 / NPS 3 and 4: 15.5 bar / 225 psig
High-Pressure Actuator:
DN 25 / NPS 1: 17.2 bar / 250 psig
DN 50 / NPS 2: 13.6 bar / 200 psig
DN 80 / NPS 3: 15.5 bar / 225 psig
DN 100 / NPS 4: 17.2 bar / 250 psig
Other Applications:
Low-Pressure Actuator: 27.6 bar / 400 psig or maximum
inlet pressure, whichever is lower
High-Pressure Actuator: 27.6 bar / 400 psig or maximum
inlet pressure, whichever is lower
Maximum Pressures over Set Pressure to Avoid Internal
Parts Damage(1)
Low-Pressure Actuator: 1.4 bar / 20 psig
High-Pressure Actuator: 8.3 bar / 120 psig
1. The pressure/temperature limits in this Installation Guide or any applicable limitation should not be exceeded.
2. Maximum Outlet and Emergency Casing Pressures for constructions with Fluorocarbon (FKM) diaphragm are limited to 15.8 bar / 230 psig or the body rating limit, whichever is lower.
3. DN 50 / NPS 2 body size spring range is limited up to 3.1 bar / 45 psig only.
4. Maximum setpoint is limited to 10.3 bar / 150 psig for constructions with Fluorocarbon (FKM) diaphragm.
5. Fluorocarbon (FKM) is limited to 93°C / 200°F hot water.
6. Ethylene Propylene (EPDM) is limited to -7 to 121°C / 20 to 250°F when used with Low Pressure Actuator.
Type MR105
Installation Guide
D103246X014
English - December 2014

Installation
!
WARNING
Only qualied personnel should install
or service a regulator. Regulators should
be installed, operated and maintained in
accordance with international and applicable
codes and regulations and Emerson Process
Management Regulator Technologies,
Inc. instructions.
If the regulator vents uid or a leak develops in
the system, it indicates that service is required.
Failure to take the regulator out of service
immediately may create a hazardous condition.
Personal injury, equipment damage or
leakage due to escaping uid or bursting of
pressure-containing parts may result if this
regulator is overpressured or is installed
where service conditions could exceed the
limits given in the Specications section or
where conditions exceed any ratings of the
adjacent piping or piping connections.
To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices (as required by the appropriate code,
regulation or standard) to prevent service
conditions from exceeding limits.
Additionally, physical damage to the
regulator could result in personal injury and
property damage due to escaping uid. To
avoid such injury and damage, install the
regulator in a safe location.
Clean out all pipelines before installation of the regulator
and check to be sure the regulator has not been damaged
or has collected foreign material during shipping. For NPT
bodies, apply pipe compound to the external pipe threads.
For anged bodies, use suitable line gaskets and approved
piping and bolting practices.
Vertical installation with the actuator oriented up or down is
recommended. The unit will operate in horizontal installation
with actuator on the side, however, this could result in
premature wear of parts. Make sure that ow will be in
the same direction as that indicated by the body arrow.
Orientation of the two vents should always be down. Vents
may be rotated after regulator installation so that the vent
screens are down.
A control line must be installed to allow outlet pressure to
register on the actuator’s diaphragm. It should be installed
four to eight pipe diameters downstream of the regulator and
in an area of pipe that is free of turbulence.
Note
It is important that the regulator be installed
so that the vent hole in the spring case
is unobstructed at all times. For outdoor
installations, the regulator should be located
away from vehicular trafc and positioned
so that water, ice and other foreign materials
cannot enter the spring case through the
vent. Avoid placing the regulator beneath
eaves or downspouts and be sure it is above
the probable snow level.
Overpressure Protection
The recommended pressure limitations are stamped on the
regulator nameplate. Some type of overpressure protection
is needed if the actual inlet pressure exceeds the maximum
operating outlet pressure rating. Overpressure protection should
also be provided if the regulator inlet pressure is greater than
the safe working pressure of the downstream equipment.
Regulator operation below the maximum pressure limitations
does not preclude the possibility of damage from external
sources or debris in the line. The regulator should be
inspected for damage after any overpressure condition.
Startup
The regulator is set at the factory for the setpoint specied
on the order or at the midpoint of the spring range. The
allowable spring range is stamped on the nameplate. If a
pressure setting other than specied is desired, be sure to
change the pressure setting by following the Adjustment
section. With proper installation completed and relief
valves properly adjusted, slowly open the upstream and
downstream shutoff valves (if applicable).
Adjustment
To change the outlet pressure, loosen the locknut and
turn the adjusting screw clockwise to increase pressure or
counterclockwise to decrease pressure. Monitor the outlet
pressure with a test gauge during the adjustment. Tighten the
locknut to maintain the desired setting.
Taking Out of Service (Shutdown)
!
WARNING
To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from
all pressure before attempting disassembly.
Parts List
Key Description
1 Valve Body
2 Body Flange
3 Stud Bolt
DN 25 / NPS 1 (4 required)
DN 50, 80 and 100 / NPS 2, 3 and 4 (8 required)
4 Gasket
5 Lower Indicator Fitting
6 O-ring Retainer
7 Indicator O-ring
8 Hex Nut
9 Valve Spring
10 Indicator Stem
11 Cage
12 Port Seal
13 Seat Ring
Type MR105
2

Figure 1. Type MR105 Assembly Drawings
GE38435
APPLY LUBRICANT OR SEALANT(1):
L1 = MULTI-PURPOSE POLYTETRAFLUOROETHYLENE (PTFE) LUBRICANT
L2 = MULTI-PURPOSE NLGI(2) GRADE 1 GREASE
L3 = ANTI-SEIZE COMPOUND
S = MULTI-PURPOSE PTFE THREAD SEALANT
1. Lubricants and sealants must be selected such that they meet
the temperature requirements.
2. National Lubricating Grease Institute.
Note: Keys 64 and 71 are used only for pressure-loaded actuators.
Key Description
14 Piston Ring
15 Upper Seal
16 Valve Plug
17 Cage O-ring
18 Travel Indicator Scale
19 Travel Indicator Protector
20 Valve Plug O-ring
21 Lower Indicator Fitting O-ring
22 Flange Nut
23 E-Ring
24 Drive Screw (6 required)
25 Flow Arrow
26 Vent (2 required/
1 required for Pressure-Loaded Actuator)
27 Plug
28 Spring Seat
29 Hex Nut
DN 25 / NPS 1 (4 required)
DN 50, 80 and 100 / NPS 2, 3 and 4 (8 required)
30 Pipe Plug
33 NACE Tag (not shown)
34 Seal Wire (not shown)
35 Indicator Fitting
36 Back O-ring (2 required)
37 Indicator Fitting O-ring
38 Pipe Plug
40 Actuator Stem
43 Nameplate
44 Lube Fitting
45 Wiper Ring
46 Bearing (2 required)
47 Valve Stem O-ring (2 required)
48 Jam Nut (2 required)
49 Spring Washer
51 Lower Diaphragm Head O-ring
52 Lower Spring Guide
53 Lower Diaphragm Head
54 Lower Spring Seat
55 Diaphragm Plate
56 Diaphragm
57 Cap Screw
Low-Pressure Actuator (16 required)
High-Pressure Actuator (8 required)
58 Hex Nut
Low-Pressure Actuator
Steel (16 required)
Stainless Steel (16 required)
High-Pressure Actuator
Steel (8 required)
Stainless Steel (16 required)
60 O-ring
61 Bonnet
62 Lower Diaphragm Casing
63 Upper Diaphragm Casing
64 Upper Diaphragm Casing O-ring
65 Cap Screw (10 required)
66 Spring Case Spacer
67 Cap Screw (6 required)
68 Control Spring
69 Upper Spring Seat
70 Spring Case
71 Seal Washer (not shown)
72 Jam Nut
73 Adjusting Screw
75 Restrictor (not shown)
76 Pipe Bushing
81 Pipe Nipple (not shown)
82 Drain Valve (not shown)
84 Internal Stiffener Plate
85 Bleed Valve (not shown)
87 Upper Casing Welding Assembly (not shown)
16
64
66
65
63
56
58
51
61
40
17
3
9
29
4
11
12
13
53
65
55
84
26
76
68
71
62
52
69L3
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
S
S
SEE DETAIL V
SEE DETAIL X
SEE DETAIL Z
SEE DETAIL Y
S
L1
25
73
L2
L1
S
S
72
70
43
44
30
26
38
1
2
24
L1
L1
67
57
28
21
6
L1
L1
L1
37
35
8
18
19
22
5
10
23
SEE DETAIL W
Type MR105
3

Figure 1. Type MR105 Assembly Drawings (continued)
GE38435
DETAIL V
DETAIL Z
DETAIL W
DETAIL Y
NO TRAVEL INDICATOR
DETAIL X
APPLY LUBRICANT OR SEALANT(1):
L1 = MULTI-PURPOSE PTFE LUBRICANT
S = MULTI-PURPOSE PTFE THREAD SEALANT
1. Lubricants and sealants must be selected such that they meet the temperature requirements.
Note: Keys 64 and 71 are used only for pressure-loaded actuators.
36
L1
7
L1
L1
L1
21
27
L1 47
L1 46
L1 60
L1 20
L1 47
L1 46
L1 45
48
49
15
2
16
L1
14
36
L1
7
L1
L1
L1
21
27
L1 47
L1 46
L1 60
L1 20
L1 47
L1 46
L1 45
48
49
15
2
16
L1
14
36
L1
7
L1
L1
L1
21
27
L1 47
L1 46
L1 60
L1 20
L1 47
L1 46
L1 45
48
49
15
2
16
L1
14
36
L1
7
L1
L1
L1
21
27
L1 47
L1 46
L1 60
L1 20
L1 47
L1 46
L1 45
48
49
15
2
16
L1
14
36
L1
7
L1
L1
L1
21
27
L1 47
L1 46
L1 60
L1 20
L1 47
L1 46
L1 45
48
49
15
2
16
L1
14
36
L1
7
L1
L1
L1
21
27
L1 47
L1 46
L1 60
L1 20
L1 47
L1 46
L1 45
48
49
15
2
16
L1
14
54
71
64
63
58
56
57
L1
L1
L1
S
51
53
62
L1
54
71
64
63
58
56
L1
L1
S
51
53
62
L1
57 L1
Type MR105
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Emerson Automation Solutions
For further information on the current
PED revision see Bulletin: D103053X012
or scan the QR code.
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D103246X014 © 2010, 2018 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 05/18.
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