ROBERTSHAW CONTROL VALVES

'Mini-Max' VC-210 Valve

 

Model VC-210 diaphragm actuated control valves are compact, ruggedly constructed and designed for control of water, gas, vacuum, etc. Single-seated valves are bellows sealed to prevent steam leakage. Valves may be two-way, fail-open or fail-closed, or three-way, operated by a 10 sq. in. BUNA-N 2 ply dacron reinforced diaphragm in a die-cast aluminum housing and frame assembly.

 

Valve Sizes: 1/2", 3/4", and 1"
Ends: screwed
Body Material: 3156 Stainless Steel investment castings
Trim Material:
Two-way valves: 316 Stainless Steel
Three-way valves: 316 Stainless Steel
Flow Coefficient (Cv): - 0.3 to 9.5

Models VC-230A/VC-231A

 

Models VC-230A and VC-231A diaphragm actuated control valves feature a 30 sq. in. multi-spring actuator with a molded BUNA-N diaphragm in a steel casing. Lower frame is cast iron. Springs are wound from high quality alloy steel. A wide choice of valves includes single seated and double seated two way valves in sizes 1/2" to 4". Three-way valves are single plug between two seats (1/2" to 6"). Flanges, screwed, and union ends connections available.

 

Actuator Action: VC-230A - Air to push down, VC-231A - Air to push up
Maximum Travel: 1 1/32"
Spring Range: 3-15 psig (20 to 107 kPa) standard. Other ranges
available.
Valve Specifications: Varied - contact factory.

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