Dwyer WE31 - Manual

Series WE31 3-Way Stainless Steel Ball Valve
Specifications - Installation and Operating Instructions
Bulletin V-WE31
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.
SPECIFICATIONS
VALVE
Service: Compatible liquids and gases.
Body: 3-way.
Line Sizes: 1/4 to 2˝.
End Connections: Female NPT.
Pressure Limits: 20˝ Hg to 1000 psi
(-0.7 to 69 bar).
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.
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 DA04: 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 page 8.
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 page 8.
Cycle Time (per 90°):
TI01 and MI01: 2.5 s;
TI02 and MI02: 5 s;
TI03 and MI03: 5 s;
TI04 and MI04: 10 s;
TI05 and MI06: 15 s.
Duty Rating:
Two-Position:
TI01-TI06: 25%;
Modulating:
MI01-MI06: 75%.
Enclosure Rating: NEMA 7 .
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.
WE31-DDA02-L1
WE31-DTD01-T3-A
WE31-DHD00-T1
WE31-DDA02-T1-AA01
WE31-DDA02-T3-NN05
W.E. ANDERSON,
A DIV. OF DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: [email protected]