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-2MS0-AN-QD 1/4" male 37 degree flare x male Quick-test
    Ralston Instruments QTHA-2MS0-AN-QD 1/4" Male 37 degree Flare x Male Quick-test, Stainless Steel adapter
    Order # QTHA-2MS0-AN-QD Mfg # QTHA-2MS0-AN-QD
    $50.16
  • 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 QTHA-3SSA Female Quick-test Outlet Port, Stainless Steel
    Ralston Instruments QTHA-3SSA Female Quick-test Outlet Port, Stainless Steel
    Order # QTHA-3SSA Mfg # QTHA-3SSA
    $49.86
  • Rent from the Test and Measurement Equipment Experts

    • check Dedicated rental experts are ready to help you find the right piece of equipment and determine the best course for rental
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  • 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 QTVF-000B-2F-2F Shut-off Valve, 1/4" NPTF x 1/4" NPTF with Male QT Test Port, Brass
    Ralston Instruments QTVF-000B-2F-2F Shut-off Valve, 1/4" NPTF x 1/4" NPTF with Male QT Test Port, Brass
    Order # QTVF-000B-2F-2F Mfg # QTVF-000B-2F-2F
    $178.13
  • 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-BLB0-2F-2F Block & Bleed Valve-1/4" NPTF Inlet x 1/4" NPTF Outlet, Brass
    Ralston Instruments QTHA-BLB0-2F-2F Block & Bleed Valve-1/4" NPTF Inlet x 1/4" NPTF Outlet, Brass
    Order # QTHA-BLB0-2F-2F Mfg # QTHA-BLB0-2F-2F
    $208.55
  • 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-2TS0-QD 1/4" Tube Fitting x Male Quick- test XT, Stainless Steel Adapter
    Ralston Instruments XTHA-2TS0-QD 1/4" Tube Fitting x Male Quick- test XT, Stainless Steel Adapter
    Order # XTHA-2TS0-QD Mfg # XTHA-2TS0-QD
    $148.68
  • 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
  • Ralston Instruments XTFT-HHSB Male Quick-test XT x Male Quick test XT Bulkhead, Cap & Chain Stainless Steel Adapter
    Ralston Instruments XTFT-HHSB Male Quick-test XT x Male Quick test XT Bulkhead, Cap & Chain Stainless Steel Adapter
    Order # XTFT-HHSB Mfg # XTFT-HHSB
    $127.79
  • Ralston Instruments SWIV-QTBW Male Quick-test Swivel, Brass
    Ralston Instruments SWIV-QTBW Male Quick-test Swivel, Brass
    Order # SWIV-QTBW Mfg # SWIV-QTBW
    $30.82
  • Ralston Instruments QTHA-7SS0 7/16-20 Male SAE/MS x Male Quick-test, Stainless Steel Adapter
    Ralston Instruments QTHA-7SS0 7/16-20 Male SAE/MS x Male Quick-test, Stainless Steel Adapter
    Order # QTHA-7SS0 Mfg # QTHA-7SS0
    $55.42
  • Ralston Instruments QTHA-4FSA-RG-QD 1/2" Female BSPP Quick-Disconnect x Female Quick-test, Stainless Steel Adapter
    Ralston Instruments QTHA-4FSA-RG-QD 1/2" Female BSPP Quick-Disconnect x Female Quick-test, Stainless Steel Adapter
    Order # QTHA-4FSA-RG-QD Mfg # QTHA-4FSA-RG-QD
    $155.91
  • Ralston Instruments QTHA-3FS1 3/8" Female NPT x Male Quick-test with Check-valve, Stainless Steel Adapter
    Ralston Instruments QTHA-3FS1 3/8" Female NPT x Male Quick-test with Check-valve, Stainless Steel Adapter
    Order # QTHA-3FS1 Mfg # QTHA-3FS1
    $83.25
  • Ralston Instruments QTHA-3FSA-RG-QD 3/8" Female BSPP Quick-Disconnect x Female Quick-test, Stainless Steel Adapter
    Ralston Instruments QTHA-3FSA-RG-QD 3/8" Female BSPP Quick-Disconnect x Female Quick-test, Stainless Steel Adapter
    Order # QTHA-3FSA-RG-QD Mfg # QTHA-3FSA-RG-QD
    $153.31
  • Ralston Instruments QTHA-2FSA-RG-QD 1/4" Female BSPP Quick-disconnect x Female Quick-test, Stainless Steel Adapter
    Ralston Instruments QTHA-2FSA-RG-QD 1/4" Female BSPP Quick-disconnect x Female Quick-test, Stainless Steel Adapter
    Order # QTHA-2FSA-RG-QD Mfg # QTHA-2FSA-RG-QD
    $118.60
  • Ralston Instruments QTHA-MMB0-2015 Male M20 x 1.5mm x Male Quick- test Adapter, Brass
    Ralston Instruments QTHA-MMB0-2015 Male M20 x 1.5mm x Male Quick- test Adapter, Brass
    Order # QTHA-MMB0-2015 Mfg # QTHA-MMB0-2015
    $50.16
  • Ralston Instruments QTHA-MMB0-1415 Male M14 x 1.5mm x Male Quick- test Adapter, Brass
    Ralston Instruments QTHA-MMB0-1415 Male M14 x 1.5mm x Male Quick- test Adapter, Brass
    Order # QTHA-MMB0-1415 Mfg # QTHA-MMB0-1415
    $37.99
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