Series WE31 3-Way NPT Stainless Steel Ball Valve

Full Port, Vented Ball, Electric or Pneumatic Actuators

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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

Ordering

Grouped product items
Model	Description	Availability*	Qty	Price

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

Support Library

Product Literature

Manuals

Instruction Manual

Catalog Pages

Series WE31 Catalog Page

Drawings

Videos

Model Chart

    WE31-X-X-XXX   WE31 3-WAY PNEUMATIC NPT STAINLESS STEEL BALL VALVE       1ST 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 IN DOUBLE ACTING            CSR03     1/2 IN SPRING RETURN            DSR03     3/4 IN SPRING RETURN            ESR04     1 IN SPRING RETURN            FSR05     1-1/4 IN SPRING 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

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