(800) 576 - 6308 or email

Available Materials:
316 Stainless Steel (SS), Alloy 20 (A20), Brass (BR), Carbon Steel (CS), HASTELLOY^® B (HB), HASTELLOY^® C (HC), & MONEL^® (MO) 

(800) 576 - 6308 or email

The Universal High Pressure check valve is a one piece body machined from bar stock with female pipe threads.  The valve is designed and manufactured for high pressure applications.  For applications below 3000 PSIG, view our UN-3 series.

Available Materials:
316 Stainless Steel (SS), Alloy 20 (A20), Brass (BR), Carbon Steel (CS), HASTELLOY^® B (HB), HASTELLOY^® C (HC), & MONEL^® (MO)

(800) 576 - 6308 or email

The Universal Socket Weld check valve is machined from bar stock and designed for a minimum pressure drop.  It carries rugged, dependable Check-All trim and there is a wide variety of seat materials and cracking pressures to choose from.  This valve series is particularly attractive when weld joints are required. 

Available Materials:
316L Stainless Steel (SS), Alloy 20 (A20), Carbon Steel (CS), HASTELLOY^® B (HB), HASTELLOY^® C (HC), & MONEL^® (MO)

(800) 576 - 6308 or email

The Connector Valve is a check valve with a hex nipple or connector housing.  It is designed to be used in installations where check valves with male pipe threads are required.  The Connector Valve is adaptable for use as a check valve, vacuum breaker, or low pressure relief valve.  Two valves used in combination make an excellent low pressure relief/vacuum breaker.

Available Materials:
316 Stainless Steel (SS), Alloy 20 (A20), Brass (BR), Carbon Steel (CS), HASTELLOY^® B (HB), HASTELLOY^® C (HC),  & MONEL^® (MO)

(800) 576 - 6308 or email

The Check-All Bushing Valve is a check valve with a standard bushing housing.  The valve is adaptable to many types of service applications.  If has very little restriction and produces a low pressure drop.  It can be used quite effectively in systems where flow and pressure drop are critical by the use of a reducer coupling.  The Bushing Valve also makes an excellent vacuum breaker.  The high flow rate insures maximum effectiveness for vacuum breaker service.  By reversing the direction of flow it can also be used as a low pressure relief valve.  

Available Materials:
316 Stainless Steel (SS), Alloy 20 (A20), Brass (BR), Carbon Steel (CS), HASTELLOY^® B (HB), HASTELLOY^® C (HC),  & MONEL^® (MO)

(800) 576 - 6308 or email

The Check-All Flanged & Drilled check valve is a one-piece cast body valve with ANSI flanged ends.  The HVFD series valve is used when higher flow rates and lower pressure drops are required.  The valve is available in sizes 1 through 10 inches and standard materials of 316 stainless steel, brass and carbon steel.  The HVFD series valve is designed for use with mating ANSI class 150 flanges.  Other materials are available upon request, please contact sales@flw.com.

Available Materials:
316 Stainless Steel (SS), Brass (BR), & Carbon Steel (CS)

The Check-All Flanged & Drilled - TEFLON^® resin Lined check valve is a one-piece body valve with ANSI flanged ends.  The valve has a solid one-piece TEFLON^® resin Liner, which covers the flange faces out to the raised face diameter.  All wetted surfaces are virgin TEFLON^® resin including the TEFLON^â resin encapsulated stainless steel spring.

Style HVFD-T bodies are made of Carbon Steel only.  The liner is made of TFE virgin TEFLON^® resin.  It is installed as one solid piece of TEFLON^® resin and the internal geometrical shape is machined.  The TEFLON^® resin liner has a minimum wall thickness of 3/32 inch which guarantees against pin holes which can be present is fused liners.