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Series WE31 3-Way NPT Stainless Steel Ball Valve
Full Port, Vented Ball, Electric or Pneumatic Actuators
The Series WE31 incorporates a full port 3-way SS ball valve for great flow rates with minimal pressure drop. The valve features a blowout-proof stem for added safety, reinforced PTFE seats and seals for longer life, and a 316 SS (ASTM CF8M) ball for better performance. Actuators are direct mounted creating a compact assembly for tight spaces. Limit switches are able to be mounted directly to the valves allowing for remote position indication.
The Series WE31 can be configured with either an electric or pneumatic actuator. Electric actuators are available in weatherproof or explosion-proof, a variety of supply voltages and two-position or modulating control. Two-position actuators use the supply voltage to drive the valve open or closed, while the modulating actuator accepts a 4 to 20 mA input for valve positioning. Actuators feature thermal overload protection and permanently lubricated gear train.
The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports, with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve, and internally loaded springs return the valve to the closed position. Also available is the SN solenoid valve to electrically switch the air supply pressure between the air supply ports for opening and closing the valve. Actuators are constructed of anodized and epoxy coated aluminum for years of corrosion free service.
Product Applications
- Gas or liquid flow control
- Ideal for quick bubble tight shut-off
- Mixing or diverting liquids and gases
Models & Ordering
Specifications
- VALVE
- Service:
- Compatible liquids and gases.
- Body:
- 3-way.
- Line Sizes:
- 1/2 to 2".
- End Connections:
- Female NPT.
- Pressure Limits:
- 28" Hg to 1000 psi (-0.7 to 69 bar) up to 250°F.
- Wetted Materials:
- Body and ball: 316 SS (CF8M); Stem: 316 SS; Seat: RTFE/PTFE; Seal, Washer, and Packing: PTFE.
- Temperature Limits:
- -20 to 392°F (-29 to 200°C).
- Other Materials:
- O-ring: Fluoroelastomer; Handle: 304 SS; Washer: 301 SS; Stem Nut, Locking Device, Gland Ring: 304 SS; Handle Sleeve: PVC.
- Agency Approvals:
- Meets the technical requirements of EU Directive 2011/65/ EU (RoHS II).
- ACTUATORS
- Pneumatic “DA” and “SR” Series
- Type:
- DA series is double acting and SR series is spring return (rack and pinion).
- Normal Supply Pressure:
- DA: 40 to 115 psi (2.7 to 7.9 bar); SR: 80 psi (5.5 bar).
- Maximum Supply Pressure:
- 120 psi (8.6 bar).
- Air Connections:
- DA01: 1/8" female NPT; DA02 to DA4: 1/4" female NPT; SR03 to SR07: 1/4" female NPT.
- Housing Material:
- Anodized aluminum body and epoxy coated aluminum end caps.
- Temperature Limits:
- -40 to 176°F (-40 to 80°C).
- Accessory Mounting:
- NAMUR standard.
- Electric “TD” and “MD” Series
- Power Requirements:
- 110 VAC, 220 VAC, 24 VAC or 24 VDC (MD models not available in 24 VDC).
- Power Consumption:
- See instruction manual.
- Cycle Time (per 90°):
- TD01: 4 s; MD01: 10 s; TD02 and MD02: 20 s; TD03 and MD03: 30 s.
- Duty Rating:
- 85%.
- Enclosure Rating:
- NEMA 4X (IP67).
- Housing Material:
- Powder coated aluminum.
- Temperature Limits:
- -22 to 140°F (-30 to 60°C).
- Electrical Connection:
- 1/2" female NPT.
- Modulating Input:
- 4 to 20 mA.
- Standard Features:
- Manual override, position indicator, and TD models come
with two limit switches.
- Electric “TI” and “MI” Series
- Power Requirements:
- 110 VAC, 220 VAC, 24 VAC or 24 VDC.
- Power Consumption:
- See instruction manual.
- Cycle Time (per 90°):
- See instruction manual.
- Duty Rating:
- See instruction manual.
- Enclosure Rating:
- NEMA 7, designed to meet hazardous locations: Class I, Group C & D; Class II, Group E, F & G; Division I & II.
- Housing Material:
- Powder coated aluminum.
- Temperature Limits:
- -40 to 140°F (-40 to 60°C).
- Electrical Connection:
- 1/2" female NPT.
- Modulating Input:
- 4 to 20 mA.
- Standard Features:
- Position indicator and two limit switches.
Features
- Capable of being configured to fit any application
- Limit switches can be mounted to manual valves for remote monitoring
- Vented ball to reduce operating torque
- Weatherproof or explosion-proof electric actuators
- Double acting or spring return anodized aluminum pneumatic actuators
- Full port design reduces the pressure drop across the valve
Accessories
| Model Number | Description | Usually Ships* | Price | Order | |
|---|---|---|---|---|---|
 |
VB-01 | Volume booster, 1.02 Cv, 1/4" NPT in/out connection, aluminum | 12-13 Weeks | $451.00 | Order |
Videos
Model Chart
WE31-X-X-XXX WE31 3-WAY PNEUMATIC NPT STAINLESS STEEL BALL VALVE1ST SYMBOL (1ST X) RANGE
CHD00 1/2 IN HAND OPERATED
DHD00 3/4 IN HAND OPERATED
EHD00 1 IN HAND OPERATED
FHD00 1-1/4 IN HAND OPERATED
GHD00 1-1/2 IN HAND OPERATED
HHD00 2 IN HAND OPERATED
CDA02 1/2 IN DOUBLE ACTING
DDA02 3/4 IN DOUBLE ACTING
EDA03 1 IN DOUBLE ACTING
FDA03 1-1/4 IN DOUBLE ACTING
GDA04 1-1/2 IN DOUBLE ACTING
HDA04 2 INDOUBLE ACTING
CSR03 1/2 IN SPRING RETURN
DSR03 3/4 IN SPRING RETURN
ESR04 1 IN SPRING RETURN
FSR05 1-1/4 INSPRING RETURN
GSR06 1-1/2 IN SPRING RETURN
HSR07 2 IN SPRING RETURN
2ND SYMBOL (2ND X) VALVE POSITION
T1 FLOW PATH A
T2 FLOW PATH B
T3 FLOW PATH C
T4 FLOW PATH D
L1 FLOW PATH E
3RD SYMBOL (3RD X) SOLENOID (PNEUMATIC ACTUATOR ONLY)
N NO SOLENOID
A NEMA 4X NAMUR SOLENOID
4TH SYMBOL (4TH X) SOLENOID VOLTAGE (PNEMATIC ACTUATOR ONLY)
N NO SOLENOID
A 110 VAC
B 220 VAC
C 24 VAC
D 24 VDC
E 12 VDC
5TH SYMBOL (5TH X) POSITIONER AND SWITCHES
00 NONE
01 42ADO EXP LIMIT SWITCH
02 45VDO EXP POSITION TRANSMITTER
03 42ADO-B ATEX LIMIT SWITCH
04 42ADO-IE IECEX LIMIT SWITCH
06 QV-210101 POLY LIMIT SWITCH
07 VPS AND P1 PROX SWITCH
08 265ER-D5 POSITIONER
09 285ER-D5 SMART POSITIONER
WE31-X-X-XXX WE31 3-WAY ELECTRIC NPT STAINLESS STEEL BALL VALVE
1ST SYMBOL (1ST X) RANGE
CTD01 1/2 IN ELECTRIC TWO-POSITION
DTD01 3/4 IN ELECTRIC TWO-POSITION
ETD02 1 IN ELECTRIC TWO-POSITION
FTD02 1-1/4 IN ELECTRIC TWO-POSITION
GTD03 1-1/2 IN ELECTRIC TWO-POSITION
HTD03 2 IN ELECTRIC TWO-POSITION
CMD01 1/2 IN ELECTRIC MODULATING
DMD01 3/4 IN ELECTRIC MODULATING
EMD02 1 IN ELECTRIC MODULATING
FMD02 1-1/4 IN ELECTRIC MODULATING
GMD03 1-1/2 IN ELECTRIC MODULATING
HMD03 2 IN ELECTRIC MODULATING
CTI01 1/2 IN EXP ELECTRIC TWO-POSITION
DTI02 3/4 IN EXP ELECTRIC TWO-POSITION
ETI02 1 IN EXP ELECTRIC TWO-POSITION
FTI04 1-1/4 IN EXP ELECTRIC TWO-POSITION
GTI05 1-1/2 IN EXP ELECTRIC TWO-POSITION
HTI06 2 IN EXP ELECTRIC TWO-POSITION
CMI01 1/2 IN EXP ELECTRIC MODULATING
DMI02 3/4 IN EXP ELECTRIC MODULATING
EMI02 1 IN EXP ELECTRIC MODULATING
FMI04 1-1/4 IN EXP ELECTRIC MODULATING
GMI05 1-1/2 IN EXP ELECTRIC MODULATING
HMI06 2 IN EXP ELECTRIC MODULATING
2ND SYMBOL (2ND X) VALVE POSITION
T1 FLOW PATH A
T2 FLOW PATH B
T3 FLOW PATH C
T4 FLOW PATH D
L1 FLOW PATH E
3RD SYMBOL (3RD X) ACTUATOR VOLTAGE (ELECTRIC ACTUATORS)
A 110 VAC
B 220 VAC
C 24 VAC
D 24 VDC
Drawings
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