The CV30 control valve is a reliable, full-port control valve in a compact package featuring balanced plug control trim for excellent throttling or on/off control of fluids. 
The adjustable topworks is designed to save space while leaving enough room to mount a controller. The soft-seat design achieves repeatable bubble-tight shutoff while remaining out of the flow path.
The CV30 is ideally suited for a wide range of applications with pressure control, level control or flow control.

  • The valve is available in a variety of material options and trim sizes.
  • Metal-to-metal seat is available.
  • A NACE option is available for sour service. 

FW Murphy is the exclusive BMD distributor for new equipment packages. 

FW Murphy Production Controls offers support for all our products. If you are unable to find the product that you need, please call us at 918-957-1000.


Sizes: 2”, 3”,4” and 6” 
Connections: Female NPT (2” only), flanged
Body Type: Globe 
Trim Characteristic: Modified % (throttling)
Trim Size: Full port and reduced port (1 size down)
Seat Types: Soft seat with metal-to-metal backup 
or metal-to-metal hard seat
Pressure Rating: See table
Temperature Range:  -50° F to 300° F (-46° C to 149° C)
Shutoff: ANSI Class IV
Actuator Sizes: 
2” CV30 - No. 70 (70 in2 area)
3” CV30 - No. 120 (120 in2 area)
4” CV30 - No. 120 (120 in2 area)
6” CV30 - No. 120 (120 in2 area)
Actuator Spring Ranges: 3-15 psi, 6-30 psi
Actuator Action: 
Reverse (fail-close) & direct (fail-open)
Stem Travel:
2” CV30 - 1.00 in.
3” CV30 - 1.42 in.
4” CV30 - 1.76 in.
6” CV30 - 2.50 in.
Body: WCC steel, LCC (low-temp option)
Packing Plug: A105 steel with nickel plating, A350 LF2
with nickel plating (low-temp option)
Plug Ring: D2 tool steel (standard), 316 stainless (optional), carbide (optional)
Plug Tip, Seat Ring: D2 tool steel, 316 stainless (optional) 
Seat: Polyurethane, low-temp HNBR (optional)
Cage, Plug and Stem: 316 stainless
Actuator Housing: Carbon steel
Yoke: A395 ductile iron
Bolting: A193 B7