Ralston Fittings and Adapters

Ralston Fittings and Adapters
Ralston Instruments Fittings and AdaptersRalston Instruments Fittings and Adapters

Precision Fittings and Adapters for Reliable Pressure Testing and Calibration

Ralston Instruments Fittings and Adapters, available through Transcat, offer industry-leading precision and durability for professionals working with pressure systems. Designed to ensure leak-free connections in even the most demanding applications, these fittings and adapters are essential tools for technicians performing pressure calibration, testing, and fluid transfer. With a wide range of configurations and materials, Ralston’s fittings and adapters provide seamless compatibility with gas, hydraulic, and pneumatic systems across various industries.

Leak-Free Performance

Ralston’s fittings and adapters are engineered for tight, secure, and reliable connections, eliminating the risk of leaks that can compromise accuracy during pressure testing or calibration. Each component undergoes rigorous testing to ensure consistent performance in critical applications.

Durable, Corrosion-Resistant Materials

Constructed from high-grade stainless steel, brass, and other corrosion-resistant materials, Ralston fittings and adapters are built for longevity, even in harsh environments. These materials ensure resistance to wear, corrosion, and impact, extending the life of your equipment.

High-Pressure Tolerance

Ralston fittings and adapters are designed to handle both low-pressure and high-pressure environments, making them suitable for everything from routine calibration to high-stakes testing in gas and fluid systems. They are built to withstand pressure levels up to 5000 PSI and beyond, ensuring they meet the toughest requirements.

Wide Range of Configurations

Available in a broad spectrum of sizes, thread types, and connection styles—including NPT, BSPP, and Quick-Test™—Ralston fittings and adapters are compatible with virtually any system. This versatility makes them ideal for a variety of industries, including energy, aerospace, and industrial manufacturing.

 

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  • Ralston Instruments QTHA-2FBA 1/4" NPTF x Female Quick-Test No Check-valve, Brass Adapter
    Ralston Instruments QTHA-2FBA 1/4" NPTF x Female Quick-Test No Check-valve, Brass Adapter
    Order # QTHA-2FBA Mfg # QTHA-2FBA
    $22.31
  • Ralston Instruments QTHA-2MB0 1/4" Male NPT x Quick-test no Check-valve, Brass Adapter
    Ralston Instruments QTHA-2MB0 1/4" Male NPT x Quick-test no Check-valve, Brass Adapter
    Order # QTHA-2MB0 Mfg # QTHA-2MB0
    $13.15
  • Ralston Instruments QTHA-4TB0 1/2" Tube Fitting x Male Quick Test, No Check Valve Adapter
    Ralston Instruments QTHA-4TB0 1/2" Tube Fitting x Male Quick Test, No Check Valve Adapter
    Order # QTHA-4TB0 Mfg # QTHA-4TB0
    $32.17
  • Ralston Instruments QTFT-2MB1-RT 1/4" M BSPT x M Quick-test, with check valve, cap and chain, Brass Adapter
    Ralston Instruments QTFT-2MB1-RT 1/4" M BSPT x M Quick-test, with check valve, cap and chain, Brass Adapter
    Order # QTFT-2MB1-RT Mfg # QTFT-2MB1-RT
    $40.05
  • Rent from the Test and Measurement Equipment Experts

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  • Ralston Instruments QTHA-2MS0-QD 1/4" Male NPT QD (Quick-connect) Adapter, Stainless Steel
    Ralston Instruments QTHA-2MS0-QD 1/4" Male NPT QD (Quick-connect) Adapter, Stainless Steel
    Order # QTHA-2MS0-QD Mfg # QTHA-2MS0-QD
    $83.53
  • Ralston Instruments QTHA-2TB0 1/4" Tube Adapter for Quick-Test Hose, Brass
    Ralston Instruments QTHA-2TB0 1/4" Tube Adapter for Quick-Test Hose, Brass
    Order # QTHA-2TB0 Mfg # QTHA-2TB0
    $18.94
  • Ralston Instruments QTFT-2MS0
    Ralston Instruments QTFT-2MS0 1/4" Male NPT x Male Quick-test, no Check-valve with Cap & Chain, Stainless Steel Adapter
    Order # QTFT-2MS0 Mfg # QTFT-2MS0
    $46.23
  • Ralston Instruments QTFT-2MB1 NPT Male 1/4'' Adapter
    Ralston Instruments QTFT-2MB1 NPT Male 1/4'' Adapter
    Order # QTFT-2MB1 Mfg # QTFT-2MB1
    $33.23
  • Ralston Instruments QTFT-2MB0
    Ralston Instruments QTFT-2MB0 1/4" Male NPT x Male Quick-test, no Check-valve with Cap & Chain, Brass Adapter
    Order # QTFT-2MB0 Mfg # QTFT-2MB0
    $25.96
  • Ralston Instruments QT 1/4" Male NPT x male QT, with check-valve Adapter
    Ralston Instruments QT 1/4" Male NPT x male QT, with check-valve Adapter
    Order # QTFT-2MS1 Mfg # QTFT-2MS1
    $60.36
  • Ralston QTFT-EHS0 DP Transmittter Adapter M8 x 1.25 bleed plugs, quick-test fitting
    Ralston Instruments QTFT-EHS0 DP Transmittter Adapter, M8x1.25 bleed plugs, quick-test fitting
    Order # QTFT-EHS0 Mfg # QTFT-EHS0
    $139.24
  • Ralston XTFT-HNS0 1/4"-28 UNF DP Transmitter x Male Fitting
    Ralston Instruments XTFT-HNS0 1/4" -28 UNF DP Transmitter x Male QT XT Fitting with Cap & Chain
    Order # XTFT-HNS0 Mfg # XTFT-HNS0
    $119.09
  • Ralston Instruments QTHA-3SS1-QS Quick-test Inlet Port for SP0V Hand Pump with Check Valve, Stainless Steel
    Ralston Instruments QTHA-3SS1-QS Quick-test Inlet Port for SP0V Hand Pump with Check Valve, Stainless Steel
    Order # QTHA-3SS1-QS Mfg # QTHA-3SS1-QS
    $68.23
  • Ralston Instruments QTHA-3SSA-LD Female Quick-test Outlet Port with Drain Tube (for NPAK-TRS0)
    Ralston Instruments QTHA-3SSA-LD Female Quick-test Outlet Port with Drain Tube (for NPAK-TRS0)
    Order # QTHA-3SSA-LD Mfg # QTHA-3SSA-LD
    $94.45
  • Ralston Instruments QTFT-3SS0 Male Quick-test Outlet Port with Cap & Chain, Stainless Steel
    Ralston Instruments QTFT-3SS0 Male Quick-test Outlet Port with Cap & Chain, Stainless Steel
    Order # QTFT-3SS0 Mfg # QTFT-3SS0
    $51.77
  • Ralston Instruments QTFT-3SB0-LV Replacement Outlet Port (for AP0V Hand Pumps) with Cap & Chain
    Ralston Instruments QTFT-3SB0-LV Replacement Outlet Port (for AP0V Hand Pumps) with Cap & Chain
    Order # QTFT-3SB0-LV Mfg # QTFT-3SB0-LV
    $31.12
  • Ralston Instruments QTVF-000S-2F-2F Quick-test Valved Fitting, 1/4" NPTF x 1/4" NPTF, Stainless Steel
    Ralston Instruments QTVF-000S-2F-2F Quick-test Valved Fitting, 1/4" NPTF x 1/4" NPTF, Stainless Steel
    Order # QTVF-000S-2F-2F Mfg # QTVF-000S-2F-2F
    $248.15
  • Ralston Instruments QTHA-TEVR-HC-Stainless Steel In-line Fine Adjust Vernier Piston, QT Male x QT Female, Stainless Steel
    Ralston Instruments QTHA-TEVR-HC-Stainless Steel In-line Fine Adjust Vernier Piston, QT Male x QT Female, Stainless Steel
    Order # QTHA-TEVR-HC-SS Mfg # QTHA-TEVR-HC-SS
    $292.89
  • Ralston Instruments QTHA-BLS0-2F-2F Block & Bleed Valve-1/4" NPTF Inlet x 1/4" NPTF Outlet, Stainless Steel
    Ralston Instruments QTHA-BLS0-2F-2F Block & Bleed Valve-1/4" NPTF Inlet x 1/4" NPTF Outlet, Stainless Steel
    Order # QTHA-BLS0-2F-2F Mfg # QTHA-BLS0-2F-2F
    $318.38
  • Ralston Instruments QTHA-BLB0-1F-1F Block & Bleed Valve-1/8" NPTF Inlet x 1/8" NPTF Outlet, Brass
    Ralston Instruments QTHA-BLB0-1F-1F Block & Bleed Valve-1/8" NPTF Inlet x 1/8" NPTF Outlet, Brass
    Order # QTHA-BLB0-1F-1F Mfg # QTHA-BLB0-1F-1F
    $211.78
  • Ralston Instruments QTFT-3Stainless Steel0-VT Male Quick-test with Cap & Chain Stainless Steel
    Ralston Instruments QTFT-3Stainless Steel0-VT Male Quick-test with Cap & Chain Stainless Steel
    Order # QTFT-3SS0-VT Mfg # QTFT-3SS0-VT
    $54.49
  • Ralston Instruments XTHA-2FSF-QD Female 37 degree Flare x Male Quick-test, no Check-valve, Stainless Steel Adapter
    Ralston Instruments XTHA-2FSF-QD Female 37 degree Flare x Male Quick-test, no Check-valve, Stainless Steel Adapter
    Order # XTHA-2FSF-QD Mfg # XTHA-2FSF-QD
    $237.95
  • Ralston Instruments XTHA-1FS0-QD 1/8" Female NPT Quick-connect x Male Quick-test XT, Stainless Steel Adapter
    Ralston Instruments XTHA-1FS0-QD 1/8" Female NPT Quick-connect x Male Quick-test XT, Stainless Steel Adapter
    Order # XTHA-1FS0-QD Mfg # XTHA-1FS0-QD
    $224.36
  • Ralston Instruments XTFT-3MS0-RS G 3/8" Male BSPP x Male Quick-test, no Check-valve, Stainless Steel Adapter
    Ralston Instruments XTFT-3MS0-RS G 3/8" Male BSPP x Male Quick-test, no Check-valve, Stainless Steel Adapter
    Order # XTFT-3MS0-RS Mfg # XTFT-3MS0-RS
    $88.63
  • Ralston Instruments XTFT-2MS0-RS G 1/4" Male BSPP x Male Quick-test XT, no Check-valve, Stainless Steel Adapter
    Ralston Instruments XTFT-2MS0-RS G 1/4" Male BSPP x Male Quick-test XT, no Check-valve, Stainless Steel Adapter
    Order # XTFT-2MS0-RS Mfg # XTFT-2MS0-RS
    $88.63
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