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.

 

247 Results
sort Sort
  • $175.90
  • Special Price $54.32 Save 1 % Regular Price $54.33
  • Ralston Instruments QTHA-3MB0 3/8" Male x Male QT, no Check valve, Brass Adapter
    Ralston Instruments QTHA-3MB0 3/8" Male x Male QT, no Check valve, Brass Adapter
    Order # QTHA-3MB0 Mfg # QTHA-3MB0
    $38.25
  • Ralston Instruments QTFT-2MB0-RT 1/4" Male BSPT (ISO 7/1) x Male QT Adapter
    Ralston Instruments QTFT-2MB0-RT 1/4" Male BSPT (ISO 7/1) x Male QT Adapter
    Order # QTFT-2MB0-RT Mfg # QTFT-2MB0-RT
    Special Price $49.53 Save 1 % Regular Price $49.54
  • 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
  • $81.38
  • Special Price $72.91 Save 1 % Regular Price $72.92
  • Special Price $93.20 Save 1 % Regular Price $93.21
  • Ralston Instruments QTHA-2FB1 1/4" Female NPT x Male QT with Check- valve, Brass Adapter
    Ralston Instruments QTHA-2FB1 1/4" Female NPT x Male QT with Check- valve, Brass Adapter
    Order # QTHA-2FB1 Mfg # QTHA-2FB1
    $35.19
  • $37.82
  • Ralston Instruments QTHA-HHSU
    Ralston Instruments QTHA-HHSU Hose Union, Male QT x Male QT, Stainless Steel
    Order # QTHA-HHSU Mfg # QTHA-HHSU
    Special Price $54.32 Save 1 % Regular Price $54.33
  • $46.83
  • Ralston Instruments QTHA-HCBL-45 Male Quick-test x Female Quick-test Adapter
    Ralston Instruments QTHA-HCBL-45 Male Quick-test x Female Quick-test Adapter
    Order # QTHA-HCBL-45 Mfg # QTHA-HCBL-45
    Special Price $112.09 Save 1 % Regular Price $112.10
  • Special Price $141.55 Save 1 % Regular Price $141.56
  • Ralston Instruments QTHA-HCHB Male QT Run x Female QT Run x Male QT Tee, Brass
    Ralston Instruments QTHA-HCHB Male QT Run x Female QT Run x Male QT Tee, Brass
    Order # QTHA-HCHB Mfg # QTHA-HCHB
    Special Price $122.17 Save 1 % Regular Price $122.18
  • Ralston Instruments QTHA-1TS0-QD 1/8" Tube Fitting, Stainless Steel
    Ralston Instruments QTHA-1TS0-QD 1/8" Tube Fitting, Stainless Steel
    Order # QTHA-1TS0-QD Mfg # QTHA-1TS0-QD
    $138.81
  • $144.93
  • $58.37
  • $40.98
  • Ralston Instruments QTFT-1MB0-RS G 1/8" male BSPP (ISO 228/1) x male QT, no check-valve Adapter
    Ralston Instruments QTFT-1MB0-RS G 1/8" male BSPP (ISO 228/1) x male QT, no check-valve Adapter
    Order # QTFT-1MB0-RS Mfg # QTFT-1MB0-RS
    $47.39
  • Ralston Instruments QTHA-HHCB Hose Tee, Brass
    Ralston Instruments QTHA-HHCB Hose Tee, Brass
    Order # QTHA-HHCB Mfg # QTHA-HHCB
    Special Price $136.97 Save 1 % Regular Price $136.98
  • $111.15
  • Ralston Instruments QTHA-HSHS Hose union - male QT x male QT, Brass
    Ralston Instruments QTHA-HSHS Hose union - male QT x male QT, Brass
    Order # QTHA-HSHS Mfg # QTHA-HSHS
    $24.38
  • Ralston Instruments QTFT-CAPS Cap, Plug, Chain and Hanger Ring
    Ralston Instruments QTFT-CAPS Cap, Plug, Chain and Hanger Ring
    Order # QTFT-CAPS Mfg # QTFT-CAPS
    Special Price $30.05 Save 1 % Regular Price $30.06
  • Ralston Instruments QTHA-2MB1 1/4" male NPT x male QT, with check-valve, Brass Adapter
    Ralston Instruments QTHA-2MB1 1/4" male NPT x male QT, with check-valve, Brass Adapter
    Order # QTHA-2MB1 Mfg # QTHA-2MB1
    $28.41
  • $20.42
arrow_drop_down arrow_drop_down