The Model 3750 is a self-contained pressure/vacuum calibration kit used for checking and calibrating gauges, sensors, and pressure switching devices. Requiring no external power or pressure source, its compact and rugged design is ideal where space is limited. Features include stainless steel and advanced corrosion protection on all wetted components, impact resistant controls, and wear-resistant seals and control surfaces. Typical applications include plant maintenance, manufacturing, marine, pharmaceutical, and oil and gas. Calibration is achieved by comparing the device under test with a connected reference pressure gauge.
Model 3750 Pressure/Vacuum Calibration Kit
Description:
Features:
- The most advanced, multi-function Handpump in the market today
- The U.S. Navy’s hand pump of choice for shipboard calibration on all of its ships and submarines.
- With proper maintenance and scheduled service, your Model 3750 is under warranty for 25 months of trouble-free performance.
- Constructed with stainless steel and advanced corrosion protection on all wetted components, rugged impact resistance controls, wear resistant seals and control surfaces.
- Pneumatic and hydraulic pressure output from one pump.
- Proprietary elastomeric seals.
- A “no-crush” knob clutch prevents over-tightening and increases valve seat life.
- Bubble-tight needle valve offers precise, trouble-free pneumatic and hydraulic pressure control.
- Dual Piston technology features coarse and fine vernier volume adjusters, enabling the operator to choose coarse control for large pressure changes or fingertip fine adjustment to effortlessly dial in pressure test points by as little as 0.001 psi.
Specifications:
*Backpack Kit includes:
- Patented rugged hand pump with neckstrap
- Hydraulic Reservoir
- 4 Precision reference gauges
- Accessories Kit
- Fluid Trap
- Pressure test hoses
- Soft cover backpack with easy-access pouches, carrying handles. And ergonomic shoulder straps
*Kits Can be made to order
- DESCRIPTION
Description:
The Model 3750 is a self-contained pressure/vacuum calibration kit used for checking and calibrating gauges, sensors, and pressure switching devices. Requiring no external power or pressure source, its compact and rugged design is ideal where space is limited. Features include stainless steel and advanced corrosion protection on all wetted components, impact resistant controls, and wear-resistant seals and control surfaces. Typical applications include plant maintenance, manufacturing, marine, pharmaceutical, and oil and gas. Calibration is achieved by comparing the device under test with a connected reference pressure gauge.
- FEATURES
Features:
- The most advanced, multi-function Handpump in the market today
- The U.S. Navy’s hand pump of choice for shipboard calibration on all of its ships and submarines.
- With proper maintenance and scheduled service, your Model 3750 is under warranty for 25 months of trouble-free performance.
- Constructed with stainless steel and advanced corrosion protection on all wetted components, rugged impact resistance controls, wear resistant seals and control surfaces.
- Pneumatic and hydraulic pressure output from one pump.
- Proprietary elastomeric seals.
- A “no-crush” knob clutch prevents over-tightening and increases valve seat life.
- Bubble-tight needle valve offers precise, trouble-free pneumatic and hydraulic pressure control.
- Dual Piston technology features coarse and fine vernier volume adjusters, enabling the operator to choose coarse control for large pressure changes or fingertip fine adjustment to effortlessly dial in pressure test points by as little as 0.001 psi.
- SPECIFICATIONS
- VIDEOS
Introducing The Most Advanced, Multi-function Hand Pump In The Market Today.

Tested Under Extreme Conditions
The Model 3750 is engineered to perform — even in the harshest environments. Constructed with stainless steel and advanced corrosion protection on all wetted components, rugged impact resistant controls, and wear resistant seals and control surfaces, the Model 3750 is purpose-built for all of your real world applications. In fact, the Model 3750 is the U.S. Navy’s hand pump of choice for shipboard calibration on all of its ships and submarines.
A Portable Solution For Precision Calibration
You can incorporate the Model 3750 Portable Pressure Calibrator into your existing pressure calibration system or let King Nutronics provide you with a custom configured pressure calibration system — complete with all the equipment necessary to perform precision pressure calibrations specific to your requirements
Guaranteed to Last
Designed with the U.S. Navy shipboard calibration workload in mind, the Model 3750 is rugged, reliable and built to last. With proper maintenance and scheduled service, your Model 3750 is under warranty for 25 months of trouble-free performance.
Engineered to Perform
Featuring more than 20 unique engineering enhancements,* our industry-leading
hand pump is better than ever. The Model 3750 offers greater:
- Responsiveness: A unique quick twist selector valve transfers knob rotation into linear motion, letting you flip easily between pressure and vacuum modes.
- Reliability: Advanced o-ring sealing technology delivers reliable, leak-free operation from vacuum to 10,000 psi.**
- Control: Integrated pressure relief valve/bleed valve control makes downscale pressure adjustments easy, with bleed rates less than 0.1psi/sec. A “no-crush” knob clutch prevents over-tightening and increases valve seat life. And our bubble-tight needle valve offers precise, trouble-free pneumatic and hydraulic pressure control.
- Precision: Redesigned pump controls let you quickly calibrate set points in both pneumatic and hydraulic applications. Dual piston technology features coarse and fine vernier volume adjusters, enabling the operator to choose coarse control for large pressure changes or fingertip fine adjustment to effortlessly dial in pressure test points by as little as 0.001psi.
- Durability: Advanced corrosion-resistant materials and coatings on all wetted components means lasting performance, even under extreme conditions.
Portable Pressure Calibrator Kit