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.

 

246 Results
sort Sort
  • Ralston Instruments QTHA-TEVR
    Ralston Instruments QTHA-TEVR In-line Fine Adjust Vernier Piston
    Order # QTHA-TEVR Mfg # QTHA-TEVR
    $179.70
  • Ralston Instruments QTHA-MFB0-1620 Male QT x Mini-Stainless Steel, 1620 female, Brass Adapter
    Ralston Instruments QTHA-MFB0-1620 Male QT x Mini-Stainless Steel, 1620 female, Brass Adapter
    Order # QTHA-MFB0-1620 Mfg # QTHA-MFB0-1620
    $66.33
  • Ralston Instruments QTHA-HTBB-2T 1/4" tube fitting x male Quick-test bulkhead union, Brass
    Ralston Instruments QTHA-HTBB-2T 1/4" tube fitting x male Quick-test bulkhead union, Brass
    Order # QTHA-HTBB-2T Mfg # QTHA-HTBB-2T
    $60.92
  • Ralston Instruments QTHA-HSTB-2F Tee-male QT run x male QT run x 1/4" female NPT branch, Brass
    Ralston Instruments QTHA-HSTB-2F Tee-male QT run x male QT run x 1/4" female NPT branch, Brass
    Order # QTHA-HSTB-2F Mfg # QTHA-HSTB-2F
    $91.82
  • 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
    • check Transcat provides consultative services on equipment selection, given your existing systems and operations
    • check Ready to use calibrated equipment is is provided quickly in a cost effective and flexible way
    • check Same day shipping is available in most cases
  • Ralston Instruments QTHA-HSTB-1F Tee-male QT run x male QT run x 1/8" female NPT branch, Brass
    Ralston Instruments QTHA-HSTB-1F Tee-male QT run x male QT run x 1/8" female NPT branch, Brass
    Order # QTHA-HSTB-1F Mfg # QTHA-HSTB-1F
    $91.82
  • Ralston Instruments QTHA-HFCB-2F Tee-male QT run x female QT run x 1/4" female NPT branch, Brass
    Ralston Instruments QTHA-HFCB-2F Tee-male QT run x female QT run x 1/4" female NPT branch, Brass
    Order # QTHA-HFCB-2F Mfg # QTHA-HFCB-2F
    $89.64
  • Ralston Instruments QTHA-HFCB-1F Tee-male QT run x female QT run x 1/8" female NPT branch, Brass
    Ralston Instruments QTHA-HFCB-1F Tee-male QT run x female QT run x 1/8" female NPT branch, Brass
    Order # QTHA-HFCB-1F Mfg # QTHA-HFCB-1F
    $93.71
  • Ralston Instruments QTHA-HFBB-2F 1/4" female NPT x male Quick-test bulkhead union, Brass Adapter
    Ralston Instruments QTHA-HFBB-2F 1/4" female NPT x male Quick-test bulkhead union, Brass Adapter
    Order # QTHA-HFBB-2F Mfg # QTHA-HFBB-2F
    $62.47
  • Ralston Instruments QTHA-HCCB Hose Tee, Brass
    Ralston Instruments QTHA-HCCB Hose Tee, Brass
    Order # QTHA-HCCB Mfg # QTHA-HCCB
    $97.00
  • Ralston Instruments QTHA-BLS0-HC Block and Bleed valve, Stainless Steel Adapter
    Ralston Instruments QTHA-BLS0-HC Block and Bleed valve, Stainless Steel Adapter
    Order # QTHA-BLS0-HC Mfg # QTHA-BLS0-HC
    $318.62
  • Ralston Instruments QTFT-5SB0 QTVC Outlet Port, Male Quick-test with Cap and Chain Adapter
    Ralston Instruments QTFT-5SB0 QTVC Outlet Port, Male Quick-test with Cap and Chain Adapter
    Order # QTFT-5SB0 Mfg # QTFT-5SB0
    $35.79
  • Ralston Instruments QTFT-3MS1
    Ralston Instruments QTFT-3MS1 3/8" male NPTxmale quick-test, with check valve, cap and chain, Stainless Steel Adapter
    Order # QTFT-3MS1 Mfg # QTFT-3MS1
    $79.86
  • Ralston Instruments QTFT-2MB0-RS G 1/4" male BSPP (ISO 228/1) x male QT Adapter
    Ralston Instruments QTFT-2MB0-RS G 1/4" male BSPP (ISO 228/1) x male QT Adapter
    Order # QTFT-2MB0-RS Mfg # QTFT-2MB0-RS
    $50.39
  • Ralston Instruments QTFT-2MBL
    Ralston Instruments QTFT-2MBL Male 1/4" NPT x Male Q 90degree elbow w cap & chain, Brass Adapter
    Order # QTFT-2MBL Mfg # QTFT-2MBL
    $93.81
  • Ralston Instruments QTFT-1MS0-QD 1/8" Male NPT Quick-connect x Male QT with cap & chain, Stainless Steel Adapter
    Ralston Instruments QTFT-1MS0-QD 1/8" Male NPT Quick-connect x Male QT with cap & chain, Stainless Steel Adapter
    Order # QTFT-1MS0-QD Mfg # QTFT-1MS0-QD
    $98.97
  • Ralston Instruments QTFT-1MB0-RT 1/8" male BSPT (ISO 7/1) x male QT, no check-valve Adapter
    Ralston Instruments QTFT-1MB0-RT 1/8" male BSPT (ISO 7/1) x male QT, no check-valve Adapter
    Order # QTFT-1MB0-RT Mfg # QTFT-1MB0-RT
    $34.42
  • Ralston Instruments QTFT-HHSB Hose union - male QT x male QT Adapter
    Ralston Instruments QTFT-HHSB Hose union - male QT x male QT Adapter
    Order # QTFT-HHSB Mfg # QTFT-HHSB
    $78.28
  • Ralston Instruments QTFT-HFBB-2F Male Quick-test with Cap and Chain x 1/4" Female NPT Adapter
    Ralston Instruments QTFT-HFBB-2F Male Quick-test with Cap and Chain x 1/4" Female NPT Adapter
    Order # QTFT-HFBB-2F Mfg # QTFT-HFBB-2F
    $80.36
  • Ralston Instruments XTHA-4FS0-QD
    Ralston Instruments XTHA-4FS0-QD 1/2" female NPT Quick-connect x male Quick-test XT, Stainless Steel Adapter
    Order # XTHA-4FS0-QD Mfg # XTHA-4FS0-QD
    $284.22
  • Ralston Instruments XTHA-3MS0-RS 3/8in male BSPP x male Quick-test XT 10KPSI Adapter
    Ralston Instruments XTHA-3MS0-RS 3/8in male BSPP x male Quick-test XT 10KPSI Adapter
    Order # XTHA-3MS0-RS Mfg # XTHA-3MS0-RS
    $48.93
  • Ralston Instruments XTHA-2MS0-XH 1/4" Male High Pressure x Male Quick-test XT, Stainless Steel Adapter
    Ralston Instruments XTHA-2MS0-XH 1/4" Male High Pressure x Male Quick-test XT, Stainless Steel Adapter
    Order # XTHA-2MS0-XH Mfg # XTHA-2MS0-XH
    $68.94
  • Ralston Instruments XTHA-2MS0-RS
    Ralston Instruments XTHA-2MS0-RS 1/4in male BSPP x male Quick-test XT 10KPSI Adapter
    Order # XTHA-2MS0-RS Mfg # XTHA-2MS0-RS
    $46.77
  • Ralston Instruments XTHA-2FS0-QD
    Ralston Instruments XTHA-2FS0-QD 1/4" female NPT Quick-connect x male Quick-test XT, Stainless Steel Adapter
    Order # XTHA-2FS0-QD Mfg # XTHA-2FS0-QD
    $245.48
  • Ralston Instruments XTHA-1MSA
    Ralston Instruments XTHA-1MSA 1/8" NPTM x Quick-test Female XT, Stainless Steel Adapter
    Order # XTHA-1MSA Mfg # XTHA-1MSA
    $64.65
  • Ralston Instruments XTHA-1FS0 1/8" female NPT x male Quick-test XT 10KPSI Adapter
    Ralston Instruments XTHA-1FS0 1/8" female NPT x male Quick-test XT 10KPSI Adapter
    Order # XTHA-1FS0 Mfg # XTHA-1FS0
    $72.85
arrow_drop_down arrow_drop_down