We manufacture in-line, axial flow, nozzle style silent check valves and severe service control valves. Follow us for tweets about #natgas and #oil

Exton, PA
Joined February 2012
The DFT SCV, ½" to 3", 750 and 3,600 PSI, liquid, gas, and steam service. Stainless steel, Inconel X750 spring, silent non-slam closure, ready to install in any orientation 🎥 #CheckValves #SCV #ValveEngineering
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The DFT SCV-R inline restrictor check valve, ½" to 2", NPT or socket weld ends, Inconel X750 spring, silent non-slam closure for high back-pressure liquid and gas applications. 🎥 #CheckValves #SCVR #ValveEngineering
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The DFT Restrictor Check Valve, ¼" to 2½", up to 2,500 PSI, cracking pressures from 2 to 40 PSI. Spring-assisted silent closure for liquid and gas applications that demand higher opening resistance. 🎥 #CheckValves #RestrictorCheck
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The DFT Basic-Check valve, ¼" to 2½", up to 6,000 PSI, liquid, gas, and steam service. Silent closure, stainless steel construction, internal spring rated for over 1 million cycles. See how it's built. 🎥 #CheckValves #BasicCheck
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Compressor discharge is high pressure, pulsating, and unforgiving. The DFT Excalibur closes before flow reversal occurs, provides tight shutoff, and is built for a million-cycle service life in severe service applications. #CheckValves #CompressorDischarge #SevereService
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Gravity-dependent check valves struggle in vertical flow-down installations. DFT in-line check valves are rated for any orientation, horizontal, vertical up, or vertical down, with consistent spring-assisted closure in every position. #CheckValves #PipingDesign
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Gas transmission exposes check valves to pulsating compressor discharge, pressure swings, and corrosive gas compositions. DFT check valves are engineered for the specific demands of these applications, not adapted from general-purpose designs. #GasTransmission #CheckValves
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Standard check valves aren't built for reciprocating compressor discharge. Each stroke creates a momentary flow drop that accelerates seat wear. The DFT PDC's pulse damping chamber holds the disc open through every cycle. #CheckValves #CompressorProtection
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Water hammer generates pressure spikes up to 10x normal system pressure. Check valve type is often a direct cause. Spring-assisted valves close before flow reversal — stopping the shockwave at the source. hubs.la/Q04nqj-D0 #CheckValves #WaterHammer
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Happy Independence Day from the DFT team. Wishing you a safe and enjoyable Fourth of July!
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Compressor systems are sensitive to pressure changes during flow transitions. Valves that rely on reverse flow to close can introduce vibration and stress. DFT spring-assisted check valves close earlier, helping stabilize compressor systems. #CompressorSystems #FlowControl
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Flow path design impacts system performance. Axial-flow check valves align with flow direction, helping reduce turbulence and support stable pressure. DFT check valves can be installed in vertical flow up and vertical flow down orientation. #AxialFlow #FlowControl
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Pump shutdown doesn’t stop flow instantly. As velocity decays, pressure transients can create vibration and stress. Delayed valve closure allows reverse flow and stronger pressure spikes. DFT check valves respond earlier to help stabilize system performance. #FlowControl
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Reverse flow can begin within milliseconds after pump shutdown. If a check valve closes too slowly, returning fluid can cause slaming, vibration and pressure spikes. Spring-assisted valves respond quickly, helping stabilize pump discharge systems and protect piping.
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Remembering and honoring those who gave their lives in service. Their sacrifice is not forgotten. #MemorialDay #HonorAndRemember
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In fluctuating flow conditions, waiting for reverse flow to close a valve can lead to instability. DFT’s spring-assisted check valves begin closing as flow decreases, helping reduce slam and stabilize pressure. #NonSlamValves #FlowControl #CompressorSystems
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Check valve performance goes beyond line size and pressure rating. Closure behavior, pressure dynamics, and installation affect system stability. At DFT, we apply these system‑level factors to check valve selection and sizing for real operating conditions. #CheckValves
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Reverse flow can begin almost immediately as pump flow decays. Delayed closure may lead to pressure spikes and vibration. DFT check valves are designed to respond earlier, helping reduce the impact of reverse flow events. #FlowControl #CheckValves #PumpSystems
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Upfront cost doesn’t tell the full story. DFT engineered check valves help reduce maintenance, extend service life, and limit unplanned shutdowns — lowering lifecycle costs and improving long-term system value. #ReliabilityEngineering #CheckValves
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Maintenance often focuses on seals and rotating equipment, but valve behavior also affects system wear. DFT spring‑assisted check valves help protect piping and extend system life.
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