Check Valves

SSP offers check valves for instrumentation, alternative fuels, and small process applications having pressures up to 6000 psig (413 bar) and temperatures from -100 to 900° F (-73 to 482° C) .

Select Check Valves for your applications..

4000 Series Ball Poppet Check Valves

Ball poppet check valves are medium pressure instrumentation check valves. The ball poppet design reduces sticking for reliable cracking and resealing.

Specifications

Pressure: Up to 6000 psig (413 bar)
Temperature: Up to 350° F (176°C)
Seven cracking pressures from 1/3 to 50 psi
Body Material: 316 SS
Wide range of O-ring materials
End Connections: Duolok, Griplok and Unilok tube ends, male and female
NPT and BSPT
End Connection Sizes: 1/8 to 1/2 in. (6 to 12 mm Duolok only)

CP Series Check Valves

CP Series check valves are pipe ended valves offer accurate cracking and resealing for a wide range of cracking pressures.

Specifications

Pressure: Up to 3000 psig
Temperature: -40 to 375° F (-40 to 190°C)
Flow Coeffient: 0.35 to 1.20
More than 20 cracking pressures from 1/3 to 100 psig (0.02 to 6.89 bar)
Body Material: 316 SS, Alloy 400, and Brass
O-ring Material, FKM, NBR, NBR low-temp, EP, FFKM
End Connections: Male and Female NPT and BSP
End Connection Sizes: 1/4 and1/2 in.

CPA Series Adjustable Check Valves

CPA Series check valves are pipe ended check valves that enable users to make field adjustments to cracking pressures to meet the requirements of their application.

Specifications

MAWP: Up to 3000 psig
Temperature: -40 to 375°F (-40 to 190°C)
Flow Coeffient: 0.35 to 1.20
Six Adjustable Cracking Pressure Ranges from 3 to 600 psig (0.21 to 41.3 bar)
Body Material: 316 SS, Alloy 400, and Brass
O-ring Material, FKM, NBR, NBR low-temp, EP, FFKM
End Connection Sizes: 1/4 and1/2 in.

CH Series High-Pressure Check Valves

CH Series check valves offer back flow control for tubing and pipe systems with pressure up to 6000 psig (413 bar). CH Series check valves have been tested to meet ECE R110 for CNG vehicles.

Specifications

MAWP: 6000 psig
Temperature Range: -65° to 400° F (-53 to 232° C)
Cracking Pressures: 1/3, 1, 5, 10 and 25 psi (0.03, 0.07, 0.35, 0.69, 1.8 bar)
Flow Coeffient: 0.35 to 1.20
More than 20 cracking pressure from 1/3 to 100 psig
Body Material: 316 SS, Alloy 400, and Brass
O-ring Material, FKM, NBR, NBR low-temp, EP, and FFKM
End Connections: Duolok, Griplok and Unilok tube ends, male and female NPT and BSP pipe ends. Other end type are available.
End Connection Sizes: 1/8 and 1 in. (3 to 25 mm)

LC Series Lift Check Valves

LC Series lift check valves are used in systems having high temperatures up to 900° F (482°C) and pressures up to 6000 psig (413 bar).

Specifications

MAWP: 6000 psig
Temperature Range: -100° to 900° F (-73 to 482°C)
Flow Coeffient: up to 1.10
Body Material: 316 SS, Alloy 400, and Brass
End Connections: Duolok, Griplok and Unilok tube ends, male and female NPT pipe ends, and tube socket weld ends
End Connection Sizes: 1/8 and 3/4 in. (6 mm Duolok tube fitting).
Other sizes and end types are available.