Plast-O-Matic EASYMT Series User manual

INSTRUCTIONS
MSVT-0714-I-1
OPERATION
All Series “EASYMT” and “EASMT” PTFE Bellows solenoid
valves are direct acting, 2-way, and normally closed valves.
When their solenoid coils are de-energized the valves are closed,
and open when the coils are energized. Valves with 24 watt coils
can be energized continuously.
FAIL-DRY®DESIGN
All series “EASYMT” and “EASMT” valves utilize the PLAST-O-
MATIC patented FAIL-DRY®safety design which features a
vented chamber separating two (2) sealed sections of the valve
body. This concept is extremely important for solenoid valves
used in the chemical processing industry as it protects the metal
operating components from corrosion that could cause valve
failure and offers a warning of valve leakage before a failure
occurs.
INSTALLATION
Please check the nameplate for correct part number, pressure
ratings, and voltage. Also check the flow label located on the
side of the valve body to insure proper flow direction. If flow label
is missing, the inlet can be distinguished from the outlet port. The
outlet is always deeper than the inlet.
PLAST-O-MATIC solenoid valves operated by 24 watt coils can
be mounted horizontally or vertically; however, vertical mounting
(coil up) is preferred since it results in longer cycle life.
Valves should NEVER be mounted with the coils on the bottom.
When installing these valves in a piping system they should only
be connected to plastic pipe or plastic fittings. All male threads
should be wrapped with PTFE tape or other acceptable pipe
sealant. To prevent stringing of the PTFE tape into the inner
workings of the valves, be sure to keep the tape at least one full
thread from the end of the pipe.
Whenever PTFE tape or other pipe sealants are used there is a
tendency to over-torque because of the reduced friction.
Therefore, connections should only be made hand-tight followed
by one quarter turn more. Greater forces tend to stretch or distort
the plastic bodies which could lead to future ruptures. Strap
wrenches may be used for assembly. Metal pipe wrenches
should NEVER be used as they can deeply scratch the plastic
surfaces causing additional stresses.
Wiring should comply with all applicable electrical codes, local or
otherwise. Care should be taken to insure that the solenoid coil
leads cannot be pulled from the coil. If flexible conduit is not
used to connect to the solenoid housing the supply conduit must
be properly aligned and supported to prevent stressing the
solenoid assembly. See Wiring Diagram.
VALVE PRESSURE RATINGS
These PLAST-O-MATIC solenoid valves are direct acting and do
not require minimum operating pressure differentials, but the
maximum inlet and back pressure ratings must not be exceeded.
If the maximum inlet pressures are exceeded the valves will not
open and the coil can burn out.
Back pressure can result in two (2) ways. First, from a separate
pressure source in the downstream piping. And second, from the
flow of liquid through the downstream piping. If the back
pressure rating is exceeded in the first situation the valve will
open and a reverse flow will take place if there is a lesser inlet
pressure. In the second situation the valve will not close and flow
will continue. When back pressures are caused by the liquid flow
it naturally follows that any restriction in the downstream piping
will cause even higher back pressures. This is especially true with
spray nozzles.
The following chart is to provide overall guidelines on various
thermoplastics relative to their pressure and temperature
relationships. The information should be used to determine
limitations of the various materials rather than selection of a
specific valve since each individual valve model has its own
pressure ratings. Refer to specifications table in the product
catalog.
MAINTENANCE
The major causes of solenoid valve failure are usually either
chemical incompatibility, damage from water hammer or foreign
matter in the valve. Water hammer may be minimized by
adhering to a safe piping velocity of 5 feet per second.
Commonly encountered foreign matter includes pipe sealants,
mineral and salt deposits, and other solids.
Before disassembling a valve for examination or cleaning make
sure all electrical power and fluid line pressure are turned off. It
should be noted that even after a pump is shut down to eliminate
fluid line pressure there may still be pressure trapped in the piping
system. One example of this would be head pressure located in a
vertical run of pipe. If this situation is possible, extreme caution
should be exercised when removing the top housing from the
valve body. It would be advisable to place a clear plastic shield
over the valve during disassembly to avoid injuring a worker.
CAUTION: Avoid breathing dangerous vapors and avoid skin
contact with chemicals.
Whenever disassembling a valve it is wise to carefully inspect all
of the parts to insure proper operation when it is reassembled. It
is also a good idea to have a spare seal kit on hand.
When removing foreign matter or deposits on the valve seat or
other internal parts, care should be taken not to scratch or nick
the parts being cleaned.
After reassembly, operation should be checked by energizing the
solenoid coil. If the valve is operating properly, a sharp metallic
click will usually be heard when the valve’s coil is energized.
FAIL-DRY®is a registered trademark of Plast-O-Matic Valves, Inc.
MATERIALS TEMPERATURE vs. PRESSURE
MAXIMUM INLET PRESSURES AND TEMPERATURES
MAX.
MAT’L TEMP
PVC 140°F 140 9,6 100 6,8 40 2,7 N.R N.R N.R. N.R
(60°C)
CPVC 180°F 140 9,6 100 6,8 80 5,4 40 2,7 N.R N.R. N.R
(82°C)
GPP** 220°F 140 9,6 120 8,2 100 6,8 80 54 40 2,7 N.R. N.R
(105°C)
PVDF 284°F 140 9,6 130 8,8 120 8,2 100 6,8 60 4,1 30 2,0 10 0,7
(140°C)
N.R. = Not Recommended GPP** = Glass-Filled Polypropylene
75°F
(24°C)
PSI Bars
110°F
(43°C)
PSI Bars
140°F
(60°C)
PSI Bars
180°F
(82°C)
PSI Bars
220°F
(105°C)
PSI Bars
240°F
(116°C)
PSI Bars
284°F
(140°C)
PSI Bars
Series EASYMT & EASMT Solenoid Valves
IMPORTANT NOTES BEFORE INSTALLING

•Diaphragm
•Support Shaft
•O-Ring
•Bellows Support
Cylinder
•PTFE Bellows
• Seat
1
2
Ground
Coil
Connector
REFER TO PARTS DRAWING
WIRING DIAGRAMS PTFE BELLOWS ASSEMBLY
Terminals 1 & 2 are not polarity sensitive.
Connector can be placed, wire facing up or down.
Z-Cool-DIN 8945 . . . . . . . . . . .24 VAC
Z-Cool-DIN 8946 . . . . . . . . . . .24 VDC
Z-Cool-DIN 8943 . . . . . . . . . .120 VAC
Z-Cool-Din 8944 . . . . . . . . . .240 VAC
For AC voltages, 50 or 60 Hz is
acceptable.
•Before disassembly, relieve pressure and drain fluid from the valve and piping to be opened.
Take proper precautions to protect people and equipment from any residual liquid. Remove
cap nut and coil assembly.
•Disassemble the valve in a clean environment. Prevent any dirt, grit, or fiber from getting
onto the sealing surfaces or into the moving parts. Do not scratch or damage plastic parts.
Remove four (4) fasteners.
•Anon-scratching probe such as an orangewood stick or ball-end dental pick (burnisher)
should be used to remove and install O-rings.
•Pipe wrenches and vises are not recommended for plastic valves.
•Refer to the valve instruction sheet for installation to piping.
•Align the FAIL-DRY®port to the inlet side, or as convenient.
•Replace old seal kit with new. Reassemble; re-install fasteners to 25 in.lbf/2.82 N.m.
NEED HELP? Call 1-973-256-3000
for Tech Support.
(Have valve model number and voltage ready)
SERIES EASYMT AND SERIES EASMT
Seal Kit Replacement
Connector Coil
INSTRUCTIONS
MSVT-0714-I-2

INSTRUCTIONS
MSVT-0714-I-3
Type W24 (24 Watt) solenoid coils, rated IP65 (weather proof and
suitable for outdoor use) are designed to be used with Plast-O-
Matic solenoid valves. The solenoid consists of the coil, plunger
(AKA core), core tube housing and a few other parts. When
energized, the solenoid creates a magnetic field that causes the
core to move thus opening or closing the valve depending on the
design of the valve. You, the end user, must apply the correct
voltage for your particular valve/solenoid. This voltage (and part
number) is imprinted on the coil.
IMPORTANT: these coils MUST be operated with the connector
that was supplied by the factory, or the correct replacement
connector if required. If used with the wrong connector, the valve
will not operate. The coil, voltage and part numbers of the coil and
connector are provided below. All connectors are designed for 1/2”
NPT conduit connection. These connectors meet DIN 43650/ISO
4400 form A.
The reason the correct connector must be used is because the
connector performs a special function. First it rectifies the voltage,
and second it allows full voltage to the coil for a short time (less
than 1 second), and then reduces the voltage to a lower holding
value. Rectified voltage has several advantages:
1. It is much quieter than AC voltage, which tends to hum and
occasionally buzz.
2. The coil can be on/off cycled without increasing the heating like
AC coils will.
3. In case the coil is energized without being mounted on the
valve, no harm is done.
The reason for dropping the voltage after the valve opens (or closes
in the case of a normally open valve), is because once the valve has
switched to its energized position, it no longer needs full voltage.
Most of that energy is wasted in heat and the coil gets very hot.
With this special connector the coil uses much less energy, and
runs very cool even if energized indefinitely. If the solenoid is de-
energized and energized again, the connector will perform the
same sequence thus assuring the valve will always operate as
required.
As a result of the connector function described above, the coil
draws 24 watts for less than one second and as it remains
energized it will draw less than 4 watts, saving energy, and running
much cooler.
TYPE W24 SOLENOID COIL
IMPORTANT NOTES BEFORE INSTALLING
8826W-240VAC 240 VAC Z-COOL-DIN8944
8825W-24VAC 24 VAC Z-COOL-DIN8945
8824W-120VAC 120 VAC Z-COOL-DIN8943
8827W-24VDC 24 VDC Z-COOL-DIN8946
COIL PART NUMBER INPUT VOLTAGE CONNECTOR PART NUMBER
SPECIFICATIONS
Insulation class H
Watts (maximum) 24 (watts drop to approx. 4 watts after initially energized)
Duty Cycle 100% (may be energized indefinitely, or rapid on/off cycling is acceptable)
Max. Ambient temp 50° C (122° F)
Voltage tolerance 10% above or below rated voltage. **See note below
Current (amps) See table below.
Enclosure Rating IP65
**Note at 10% above rated voltage the coil will run a little warmer
COIL PART NUMBER MAXIMUM CURRENT (LESS THAN 1 SECOND) HOLDING CURRENT
8826W-240VAC 0.15 0.03
8825W-24VAC 0.85 0.22
8824W-120VAC 0.22 0.06
8827W-24VDC 1.1 0.3
INSTALLATION CAUTION: Electrical wiring
shall be performed by qualified persons in
accordance with all national and local
electrical codes. Three wire (single phase,
grounded) is required. A 1/2” NPT threaded
connection and all gaskets supplied must be
used to maintain IP65 weather tight rating.

PARTS DRAWING
MSVT-0714-I-4
SERIES EASMT
ITEM NO. DESCRIPTION QTY.
1BODY / NPT 1
2SEAL KIT FOR EASMT 1
3SS MACHINE SCREW FLAT 8-32 X 2" 4
4HALAR MOUNT 1
5CLOSED CELL EPDM GASKET 1
6ARMATURE TUBE 1
7COIL ASSEMBLY 1

INSTRUCTIONS
MSVT-0714-I-5
TypeR24 (24 Watt) solenoid coils, rated IP65 (weather proof and
suitable for outdoors use) are designed to be used with Plast-O-
Matic solenoid valves. The solenoid consists of the coil, plunger
(AKA core), core tube housing and a few other parts. When
energized, the solenoid creates a magnetic field that causes the
core to move thus opening or closing the valve depending on the
design of the valve. You, the end user, must apply the correct
voltage for your particular valve/solenoid. This voltage (and part
number) is imprinted on the coil.
MPORTANT: these coils MUST be operated with the connector
that was supplied by the factory, or the correct replacement
connector if required. If used with the wrong connector, the valve
will not operate. The coil, voltage and part numbers of the coil
and connector are provided below. All connectors are designed
for 1/2” NPT conduit connection. These connectors meet DIN
43650/ISO 4400 form A.
The reason the correct connector must be used is because the
connector performs a special function. It rectifies the voltage.
Rectified voltage has several advantages:
1. It is much quieter than AC voltage, which tends to hum and
occasionally buzz.
2. The coil can be on/off cycled without increasing the heating
like AC coils will.
3. In case the coil is energized without being mounted on the
valve, no harm is done.
TYPE R24 SOLENOID COIL
INSTALLATION AND MAINTENANCE INSTRUCTIONS
IMPORTANT NOTES BEFORE INSTALLING
COIL PART NUMBER INPUT VOLTAGE CONNECTOR PART NUMBER
8826E-240VAC 240 VAC 9402
8825E-24VAC 24 VAC 6353
8824E-120VAC 120 VAC 6353
8827E-24VDC 24 VDC 5443
SPECIFICATIONS
Insulation class H
Watts (maximum) 24
Duty Cycle 100% (may be energized indefinitely, or rapid on/off cycling is acceptable)
Max. Ambient temp 50° C (122° F)
Voltage tolerance 10% above or below rated voltage. **See note below
Current (amps) See table below.
Enclosure Rating IP65
**Note at 10% above rated voltage the coil will run a little warmer
COIL PART NUMBER MAXIMUM CURRENT
8826E-240VAC 0.15
8825E-24VAC 0.85
8824E-120VAC 0.22
INSTALLATION CAUTION: Electrical wiring shall
be performed by qualified persons in accordance
with all national and local electrical codes. Three wire
(single phase, grounded) is required. A 1/2” NPT
threaded connection and all gaskets supplied must
be used to maintain IP65 weather tight rating.