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RALSTON INSTRUMENTS - PRESSURE CALIBRATION SPECIALISTS
![Ralston Fitting.jpg](https://static.wixstatic.com/media/4f48db_6484fa7554fe44f1b6ccfddd1a87d546~mv2.jpg/v1/crop/x_0,y_9,w_800,h_491/fill/w_88,h_54,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Ralston%20Fitting.jpg)
![Ralston Hand Pump.jpg](https://static.wixstatic.com/media/4f48db_6f5f9f80131a4f74ba1e15c417d461f9~mv2.jpg/v1/crop/x_0,y_54,w_720,h_610/fill/w_88,h_74,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Ralston%20Hand%20Pump.jpg)
![QTHP-Image.jpg](https://static.wixstatic.com/media/4f48db_c09b99645b884c5a9be07bd375ef0036~mv2.jpg/v1/crop/x_0,y_38,w_480,h_405/fill/w_88,h_74,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/QTHP-Image.jpg)
![Nitro-Pack.jpg](https://static.wixstatic.com/media/4f48db_db6885262a8648d496ab332cdb3517b3~mv2.jpg/v1/fill/w_74,h_74,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Nitro-Pack.jpg)
![Ralston Hose.jpg](https://static.wixstatic.com/media/4f48db_f4b9ababc453463794234a077fa06138~mv2.jpg/v1/crop/x_247,y_0,w_747,h_630/fill/w_88,h_74,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/Ralston%20Hose.jpg)
![valves and verneers.jpg](https://static.wixstatic.com/media/4f48db_263efca4192547deb83a2d662146c9b0~mv2.jpg/v1/crop/x_293,y_0,w_653,h_551/fill/w_88,h_74,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/valves%20and%20verneers.jpg)
Adapters & Fittings
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NPT Ralston Quick-test Adapters - Test Up to 5,000 PSI
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NPT Ralston Quick-Test XT Adapters - Test Up to 10,000 PSI
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Ralston Quick-test DP Transmitter Adapters - Test Up to 10,000 PSI
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Tube Fitting to Ralston Quick-test Adapters
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BSPT & BSPP Ralston Quick-test Adapters
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Medium Pressure Ralston Quick-test Adapters
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High Pressure Ralston Quick-test Adapters
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37 degree Flare (AN/JIC) Ralston Quick-test Adapters
Pneumatic Calibration Test Pumps
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DCAP Pressure Test Pumps - Hand Operated used to generate pressure up to 650 psi ( Pictured to the left)
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Pnuematic Calibration Test Pumps- Generate vacuum and pressure with ease and precision (Varying pressure generation dependent on pump model number)
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Pneumatic and Vaccum Cylinder Hand Pumps
Compressed Gas Control
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Ralston Nitro-Pack - Proprietary pressure balanced fine adjustment piston allows for extremely precise, finger-tip control of pressure at 0.03 psi (2 mbar) or 3000 psi (210 bar) or any range in between
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Ralston Compressed Gas Volume Controller - Perform accurate high pressure static calibrations or low-pressure differential caliibration.
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Ralston Calibration Manifold - Perform Static pressure calibrations. Fine Control a compressed device, irrespective of the device being controlled
Quick-Test Hoses
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Ralston Hose can be attached and detached without a wrench or thread sealant while maintaining a working pressure of 6900 psi or 10,000 psi.
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Small in diameter, flexible, and low in volume
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Ideal way of transmitting pressure during a vacuum or pressure calibration
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2ft - 100ft house with either Brass or Stainless Steel Connectors
Valves, Verniers & Valved Test Point Fittings
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Block& Bleed Valves - Keep a calibration system pressurized with a fluid or gas while venting the pressure from the device being calibrated
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In-Line Vent Vales - Slowly or quickly bleed pressure from a line after a calibration is complete
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In-line Verniers - Connect one end to a Quick-test hose and the other to the process connection then turn the knob to control the pressure
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Valved Fiitings - Install between a pressure gauge and the process and isolate the process from the gauge to perform a calibration of the gauge