Features
● Sizes 1/2 4 inch nANSI Classes 125/150/300
● Cast Iron, Carbon Steel, Stainless Steel
● 316 Stainless Steel Trim
● Spring-Diaphragm Actuator reversible for fail-open or fail-closed operation
Applications
● General Industrial Process Control
● Water, Steam, Oil, Natural Gas, and Other Fluids
● Control of Temperature, Pressure, Flow, Level
Operation
Model SRV Control Valves are 2-way globe-style (rising stem) process control valves for use in general industrial service. Typical applications include control of temperature, pressure, flow rate, level, or, concen-tration. Model SRV valves feature single seat, pressure-unbalanced trim in 316 stainless steel. Double stem guides at top and bottom of bonnet keep critical guiding surfaces out of the flowstream yet minimize stem and plug deflection. No-cage design means no chance of galling or fouling -- suitable for dirty service.
Actuation is accomplished by diaphragm-style actuator which receives 3-15 psig (std.) pneumatic control signal from I/P converter, positioner, or process controller. Actuators include fail-safe springs, either air-to-close/ fail-open or air-to-open/fail-closed configurations are available. Optional accessories include handwheels, positioners, I/P converters, solenoid valves, limit switches, etc.
High quality of design, materials and workmanship assure trouble free operation.
Specifications
| Sizes |
1/2", 3/4", 1", 1 1 /4 ", 1 1 /2 ", 2", 2 1 /2 ", 3", 4" |
| Body Materials |
Cast Iron (G25), Carbon Steel (WCB), Stainless Steel (CF8M) |
| Flange Connections / Ratings |
ANSI 125 FF, ANSI 150 RF, ANSI 300 RF |
| Flow Characteristics. |
Equal-Percent, Linear |
| Cv |
Numerous reduced Cv trim sizes available (see selection chart) |
| Trim Materials |
316 SS, 316 SS/Stellite Overlay |
| Bonnets |
Standard, Finned, Cryogenic, Metal Bellows Sealed |
| Packing |
PTFE V-Ring, Graphite, Double V (vacuum) |
| Seat Leakage |
.Class IV (std), Class V, Class VI (soft seal) |
| Actuator Sizes. |
200 mm, 280 mm, 330 mm, 380 mm, 450 mm |
| Actuator Action.. |
Air-to-Close/Fail-Open, Air-to-Open/Fail-Closed |
| Spring Ranges |
3-15 psig (std), 13 other ranges available |
| Diaphragm |
Neoprene (std., 50 psi max), Silicone (to 90 psi) |
| Handwheels |
Top Mounted, Side Mounted |
| Yoke Material |
Cast Iron, Carbon Steel |
| Accessories.... |
Positioners
I/P Converters
Pneumatic Pressure Controllers
Pneumatic Temperature Controllers
Solenoid Valves
Limit Switches
Position Transmitters
Lock-In-Place Systems
Volume Tank Systems |
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2 - Way Globe Style Control Valve
Single Seated, Diaphragm Operated

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