Weir SPM Check Valves are made of high
strength steel and are precision manufactured to exact tolerances
for clapper styles in 2" through 4" sizes, dart styles in 1"
through 3" sizes, and CO2/nitrogen styles in 2" and 3" styles. The
clapper design features either a standard coating or the superior
abrasion and acid resistant coating to give longer operating life
in corrosive applications. The rugged valves operate at working
pressures from 6,000 to 20,000 psi in well service applications
such as acidizing, cementing, fracturing, and energized fluids.
Weir SPM's check valves are manufactured from solid forgings to
maximize strength and abrasion resistance. Weir SPM carries the
most complete line of Check Valves available to the well service
industry. Various configurations are offered, including wing-ahead
(standard flow) or thread-ahead (reverse flow) models. Each check
valve is color-coded for safety and convenience.
Click an image to enlarge
SD Clapper Style
Dart Valve
CO2 Valve
SD Clapper Style Check Valve
Weir SPM's new Severe Duty Check Valve is
designed specifically to provide longer life and reliable operation
in severe service environments. Ideal for the harsh pumping
operations seen in the developing shale plays such as Haynesville,
the SD Check Valve utilizes unique design features resulting in
improved reliability and performance compared to other check valves
currently available to the market.
Features &
Benefits
Utilization of a Threaded Seat:
• Self-locking design prevents seat from
becoming loose due to high vibration of flow line
• Machined from high erosion and high
corrosion resistant NACE compliant stainless steel for longer
life
• Features o-ring for excellent sealing
performance
Enhanced Hanger:
• Flat machined into hanger matches flat
machined into body preventing rotation during operation
• Removes hanger pin from assembly requiring
fewer component parts
Available in Standard Flow (Wing Ahead) and Reverse Flow
(Thread Ahead).
DART VALVE
The Dart Style Check Valve is constructed of a two-piece body that
houses an inline spring loaded dart. When fluid enters from the
inlet side, it will overcome the low spring force on the dart. The
dart will travel away from the inlet and allow the fluid to flow
around towards the outlet. When fluid flow stops, the light spring
force closes the dart against its seat, preventing fluid from
flowing back through the flow line. The Weir SPM Dart Style Check
Valve is available for standard service and for sour gas (H2S)
environments.
Available in Standard Flow (Wing Ahead) and Reverse Flow
(Thread Ahead).
CO2 VALVE
Weir SPM offers a specially designed CO2/Nitrogen Poppet Check
Valve in sizes 2" and 3" to produce increased safety by preventing
back flow in volatile CO2 and Nitrogen pumping flow lines. These
stainless steel trim valves ensure that fluid cannot flow back into
the manifold area or into pumps, and are rated up to 15,000
psi.
Available in Standard Flow (Wing Ahead) and Reverse Flow
(Thread Ahead).
