Ralston Instruments

Ralston Instruments

Ralston Instruments (RI) engineers reliable equipment and systems for precise pressure calibration, and Since 1969, has continued its heritage as a family-owned company with an inventive spirit. This spirit led to the development of the industry’s first pneumatic and hydraulic hand pumps. Ralston also launched the first fully integrated system of RI hoses and adapters designed for low volume, high pressure connection to tested devices. Ralston delivers extreme precision during a range of industrial applications, with all products made in the USA .These products save businesses valuable time during critical pressure testing and maintenance. The company’s pressure sources are pinnacle products used for differential or static pressure calibrations. Transcat proudly distributes an outstanding selection of Ralston components for the calibration of pressure instruments.

The Ralston Digital Catalog

Shop Top Products from the Pressure Professionals!

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  1. New
    Ralston XTHP-0000 10,000 psi Hydraulic Hand Pump
    Ralston Instruments XTHP-0000 10,000 psi Hydraulic Hand Pump No Gauge Connect
    Order #: XTHP-0000
    Mfg #: XTHP-0000
    Availability: Ships in 2-3 weeks
    Special Price $990.76 Regular Price $1,054.01
    10,000 psi Hydraulic Hand Pump No Gauge Connect Learn More
  2. New
    Ralston XTHP-2MSA 10,000 psi Hydraulic Hand Pump
    Ralston Instruments XTHP-2MSA Hydraulic Hand Pump,10,000PSI 1/4"NPTM,SS
    Order #: XTHP-2MSA
    Mfg #: XTHP-2MSA
    Availability: In stock
    Special Price $1,065.98 Regular Price $1,098.95
    Hydraulic Hand Pump,10,000PSI 1/4"NPTM,SS Learn More
  3. New
    Ralston XTHP-1MSA 10,000 psi Hydrualic Hand Pump
    Ralston Instruments XTHP-1MSA 10,000 psi Hydraulic Hand Pump 1/8" Male NPT, S.S.
    Order #: XTHP-1MSA
    Mfg #: XTHP-1MSA
    Availability: Ships in 2-3 weeks
    Special Price $1,037.23 Regular Price $1,103.44
    10,000 psi Hydraulic Hand Pump 1/8" Male NPT, S.S. Learn More
  4. New
    Ralston XTHP-2FSA 10,000 psi Hydraulic Hand Pump
    Ralston Instruments XTHP-2FSA 10,000PSI Hydraulic Hand Pump 1/4" Female NPT, S.S.
    Order #: XTHP-2FSA
    Mfg #: XTHP-2FSA
    Availability: In stock
    Special Price $1,070.02 Regular Price $1,103.12
    10,000PSI Hydraulic Hand Pump 1/4" Female NPT, S.S. Learn More
  5. New
    Ralston XTHP-10KPSIG-FL 10,000 psi Hydraulic Hand Pump
    Ralston Instruments XTHP-10KPSIG-FL 10,000 psi Hydraulic Hand Pump 10000 PSI FieldLab
    Order #: XTHP-10KPSIG-FL
    Mfg #: XTHP-10KPSIG-FL
    Availability: Ships in 2-3 weeks
    Special Price $2,869.82 Regular Price $3,053.01
    10,000 psi Hydraulic Hand Pump 10000 PSI FieldLab Learn More
  6. New
    Ralston XTHP-10KPSIG-D 10,000 psi Hydraulic Hand Pump
    Ralston Instruments XTHP-10KPSIG-D 10,000 psi Hydraulic Hand Pump 10000 PSI Dig Gauge
    Order #: XTHP-10KPSIG-D
    Mfg #: XTHP-10KPSIG-D
    Availability: Ships in 2-3 weeks
    Special Price $1,430.79 Regular Price $1,522.12
    10,000 psi Hydraulic Hand Pump 10000 PSI Dig Gauge Learn More
  7. New
    Ralston Instruments LC20-GV2M-00-W1 Pressure gauge,10,000 psi / 700 bar / 70MPa,1/4"Male NPT,radio
    Ralston Instruments LC20-GV2M-00-W1 Pressure gauge,10,000 psi / 700 bar / 70MPa,1/4"Male NPT,radio
    Order #: LC20-GV2M-00-W1
    Mfg #: LC20-GV2M-00-W1
    Availability: Ships in 2-3 weeks
    $719.00
    Pressure gauge,10,000 psi / 700 bar / 70MPa,1/4"Male NPT,radio Learn More
  8. New
    Ralston Instruments LC20-GV2M-00-00 Pressure gauge, 10,000 psi / 70 MPa, 1/4" Male NPT
    Ralston Instruments LC20-GV2M-00-00 Pressure gauge, 10,000 psi / 70 MPa, 1/4" Male NPT
    Order #: LC20-GV2M-00-00
    Mfg #: LC20-GV2M-00-00
    Availability: Ships in 2-3 weeks
    $534.00
    Pressure gauge, 10,000 psi / 70 MPa, 1/4" Male NPT Learn More
  9. New
    Ralston Instruments LC20-GT2M-00-W1 Pressure gauge, 5000 psi / 350 bar / 35MPa,1/4" Male NPT,radio
    Ralston Instruments LC20-GT2M-00-W1 Pressure gauge, 5000 psi / 350 bar / 35MPa,1/4" Male NPT,radio
    Order #: LC20-GT2M-00-W1
    Mfg #: LC20-GT2M-00-W1
    Availability: Ships in 2-3 weeks
    $719.00
    Pressure gauge, 5000 psi / 350 bar / 35MPa,1/4" Male NPT,radio Learn More
  10. New
    Ralston Instruments LC20-GT2M-00-00 Pressure gauge, 5000 psi / 35 MPa, 1/4" Male NPT
    Ralston Instruments LC20-GT2M-00-00 Pressure gauge, 5000 psi / 35 MPa, 1/4" Male NPT
    Order #: LC20-GT2M-00-00
    Mfg #: LC20-GT2M-00-00
    Availability: Ships in 2-3 weeks
    $534.00
    Pressure gauge, 5000 psi / 35 MPa, 1/4" Male NPT Learn More
  11. New
    Ralston Instruments LC20-GR2M-00-W1 Pressure gauge, 3000 psi / 200 bar / 20 MPa,1/4"Male NPT,radio
    Ralston Instruments LC20-GR2M-00-W1 Pressure gauge, 3000 psi / 200 bar / 20 MPa,1/4"Male NPT,radio
    Order #: LC20-GR2M-00-W1
    Mfg #: LC20-GR2M-00-W1
    Availability: Ships in 2-3 weeks
    $719.00
    Pressure gauge, 3000 psi / 200 bar / 20 MPa,1/4"Male NPT,radio Learn More
  12. New
    Ralston Instruments LC20-GR2M-00-00 Pressure gauge, 3000 psi / 20 MPa, 1/4" Male NPT
    Ralston Instruments LC20-GR2M-00-00 Pressure gauge, 3000 psi / 20 MPa, 1/4" Male NPT
    Order #: LC20-GR2M-00-00
    Mfg #: LC20-GR2M-00-00
    Availability: Ships in 2-3 weeks
    $534.00
    Pressure gauge, 3000 psi / 20 MPa, 1/4" Male NPT Learn More
  13. New
    Ralston Instruments LC20-GP2M-00-W1 Pressure gauge, 1000 psi / 70 bar / 7 MPa,1/4" Male NPT,radio
    Ralston Instruments LC20-GP2M-00-W1 Pressure gauge, 1000 psi / 70 bar / 7 MPa,1/4" Male NPT,radio
    Order #: LC20-GP2M-00-W1
    Mfg #: LC20-GP2M-00-W1
    Availability: Ships in 2-3 weeks
    $719.00
    Pressure gauge, 1000 psi / 70 bar / 7 MPa,1/4" Male NPT,radio Learn More
  14. New
    Ralston Instruments LC20-GP2M-00-00 Pressure gauge, 1000 psi / 7 MPa, 1/4" Male NPT
    Ralston Instruments LC20-GP2M-00-00 Pressure gauge, 1000 psi / 7 MPa, 1/4" Male NPT
    Order #: LC20-GP2M-00-00
    Mfg #: LC20-GP2M-00-00
    Availability: Ships in 2-3 weeks
    $534.00
    Pressure gauge, 1000 psi / 7 MPa, 1/4" Male NPT Learn More
  15. New
    Ralston Instruments LC20-GN2M-00-W1 Pressure gauge,500 psi / 35 bar / 3.5 MPa,1/4" Male NPT, radio
    Ralston Instruments LC20-GN2M-00-W1 Pressure gauge,500 psi / 35 bar / 3.5 MPa,1/4" Male NPT, radio
    Order #: LC20-GN2M-00-W1
    Mfg #: LC20-GN2M-00-W1
    Availability: Ships in 2-3 weeks
    $699.00
    Pressure gauge,500 psi / 35 bar / 3.5 MPa,1/4" Male NPT, radio Learn More
  16. New
    Ralston Instruments LC20-GN2M-00-00 Pressure gauge, 500 psi / 3.5 MPa, 1/4" Male NPT
    Ralston Instruments LC20-GN2M-00-00 Pressure gauge, 500 psi / 3.5 MPa, 1/4" Male NPT
    Order #: LC20-GN2M-00-00
    Mfg #: LC20-GN2M-00-00
    Availability: Ships in 2-3 weeks
    $514.00
    Pressure gauge, 500 psi / 3.5 MPa, 1/4" Male NPT Learn More
  17. New
    Ralston Instruments LC20-GL2M-00-W1 Pressure gauge,300 psi / 20 bar / 2 MPa, 1/4" Male NPT, radio
    Ralston Instruments LC20-GL2M-00-W1 Pressure gauge,300 psi / 20 bar / 2 MPa, 1/4" Male NPT, radio
    Order #: LC20-GL2M-00-W1
    Mfg #: LC20-GL2M-00-W1
    Availability: Ships in 2-3 weeks
    $699.00
    Pressure gauge,300 psi / 20 bar / 2 MPa, 1/4" Male NPT, radio Learn More
  18. New
    Ralston Instruments LC20-GL2M-00-00 Pressure gauge, 300 psi / 2 MPa, 1/4" Male NPT
    Ralston Instruments LC20-GL2M-00-00 Pressure gauge, 300 psi / 2 MPa, 1/4" Male NPT
    Order #: LC20-GL2M-00-00
    Mfg #: LC20-GL2M-00-00
    Availability: Ships in 2-3 weeks
    $514.00
    Pressure gauge, 300 psi / 2 MPa, 1/4" Male NPT Learn More
  19. New
    Ralston Instruments LC20-GJ2M-00-W1 Pressure gauge, 100 psi / 7 bar / 700 kPa,1/4" Male NPT, radio
    Ralston Instruments LC20-GJ2M-00-W1 Pressure gauge, 100 psi / 7 bar / 700 kPa,1/4" Male NPT, radio
    Order #: LC20-GJ2M-00-W1
    Mfg #: LC20-GJ2M-00-W1
    Availability: Ships in 2-3 weeks
    $699.00
    Pressure gauge, 100 psi / 7 bar / 700 kPa,1/4" Male NPT, radio Learn More
  20. New
    Ralston Instruments LC20-GJ2M-00-00 Pressure gauge, 100 psi / 700 kPa, 1/4" Male NPT
    Ralston Instruments LC20-GJ2M-00-00 Pressure gauge, 100 psi / 700 kPa, 1/4" Male NPT
    Order #: LC20-GJ2M-00-00
    Mfg #: LC20-GJ2M-00-00
    Availability: Ships in 2-3 weeks
    $514.00
    Pressure gauge, 100 psi / 700 kPa, 1/4" Male NPT Learn More
  21. New
    Ralston Instruments LC20-GH2M-00-W1 Pressure gauge, 50 psi/3.5 bar / 350 kPa, 1/4" Male NPT, radio
    Ralston Instruments LC20-GH2M-00-W1 Pressure gauge, 50 psi/3.5 bar / 350 kPa, 1/4" Male NPT, radio
    Order #: LC20-GH2M-00-W1
    Mfg #: LC20-GH2M-00-W1
    Availability: Ships in 2-3 weeks
    $699.00
    Pressure gauge, 50 psi/3.5 bar / 350 kPa, 1/4" Male NPT, radio Learn More
  22. New
    Ralston Instruments LC20-GH2M-00-00 Pressure gauge, 50 psi / 350 kPa, 1/4" Male NPT
    Ralston Instruments LC20-GH2M-00-00 Pressure gauge, 50 psi / 350 kPa, 1/4" Male NPT
    Order #: LC20-GH2M-00-00
    Mfg #: LC20-GH2M-00-00
    Availability: Ships in 2-3 weeks
    $514.00
    Pressure gauge, 50 psi / 350 kPa, 1/4" Male NPT Learn More
  23. New
    Ralston Instruments LC20-GF2M-00-W1 Pressure gauge, 30 psi / 2 bar / 200 kPa, 1/4" Male NPT, radio
    Ralston Instruments LC20-GF2M-00-W1 Pressure gauge, 30 psi / 2 bar / 200 kPa, 1/4" Male NPT, radio
    Order #: LC20-GF2M-00-W1
    Mfg #: LC20-GF2M-00-W1
    Availability: Ships in 2-3 weeks
    $699.00
    Pressure gauge, 30 psi / 2 bar / 200 kPa, 1/4" Male NPT, radio Learn More
  24. New
    Ralston Instruments LC20-GF2M-00-00 Pressure gauge, 30 psi / 200 kPa, 1/4" Male NPT
    Ralston Instruments LC20-GF2M-00-00 Pressure gauge, 30 psi / 200 kPa, 1/4" Male NPT
    Order #: LC20-GF2M-00-00
    Mfg #: LC20-GF2M-00-00
    Availability: Ships in 2-3 weeks
    $514.00
    Pressure gauge, 30 psi / 200 kPa, 1/4" Male NPT Learn More
  25. New
    Ralston Instruments LC20-GD2M-00-W1 Pressure gauge, 15 psi / 1 bar / 100 kPa, 1/4" Male NPT, radio
    Ralston Instruments LC20-GD2M-00-W1 Pressure gauge, 15 psi / 1 bar / 100 kPa, 1/4" Male NPT, radio
    Order #: LC20-GD2M-00-W1
    Mfg #: LC20-GD2M-00-W1
    Availability: Ships in 2-3 weeks
    $699.00
    Pressure gauge, 15 psi / 1 bar / 100 kPa, 1/4" Male NPT, radio Learn More
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