Calibration Hand Pressure Pumps

Essential accessory for quick pressure calibration

When calibrating pressure metering instruments including pressure gauges and pressure calibrators, it is essential that a stable pressure source of generating requisite pressure is available at hand.

Available Models : PSI–PP1, PSI–PP2, PSI–PP3, PSI–PP3L, PSI–HPP1

Applications

Quick and easy calibration of low pressure metering instruments

Physical Design Highlights

All four pumps are manually operated and require no electrical power making them useful even when electrical power is unavailable.

Model PSI-PP1 is the most dependable and rugged pump for applications up to 100 psi or 24“Hg Vacuum. It is constructed of anodized aluminium honed tube which is mounted on a sturdy stand to prevent body heat transfer thereby affording drift-free accurate readings. It is equipped with dual pistons (coarse and fine) in order to provide smooth and controlled operation. Dual O-Rings on all pistons ensure the pump to be leak free. The unit is fitted with a tee to provide direct connection to a pressure meter / gauge and a calibrator.

Models PSI-PP3 and PSI-PP3-L are Low Pressure Calibration Pumps. They are similar in construction to model PSI PP-1 but consist of only one piston with fine control which enables easy adjustment of the pressure with resolution of 0.1 Pa with high stability These hand pumps use air as the media to generate pressure up to 30 psi. Each pump has a heat-insulator between the cover and pressure chamber to minimize the heat effect during the micro-pressure calibration. These features make the PP3 ideal for calibrating low pressure transducers, precision pressure gauges, Magnehelic gauges and other pressure instruments.

The PP 3L has been specially designed with two compartments for use in calibration of low pressure differential gauges. The construction minimizes the effect of temperature and barometric pressure changes. The PP3 is provided with two ferrule-less connectors while PP3L has four connectors for fast instrument connect and disconnect.

Models PSI-PP2 and HPP1 are High Pressure Calibration Pumps. Model PSI-PP2 is designed for pneumatic applications for a pressure range of 350 PSIG while HPP1 is a hydraulic type suitable for pressure applications upto 700 kg/cm2. Both the pumps use multiple strokes to generate high pressure and are also provided with a variable stroke adjustment in addition to a fine adjustment valve. A set of BSP adaptors and a flexible hose connection (PSI-PP2) are standard accessories.

Range :

PSI – PP1: 100 psig
PSI – PP2: 350 psig
PSI – PP3: 30 psig
PSI – PP3L: 30 psig
PSI – HPP1: 700 kg/cm²

Salient Features :

Dual source of pressure and vacuum
Manually operated. Require no electrical power
Simple one hand operation
Coarse and fine control for adjusting pressure to desired accuracy
Pneumatic pumps for low pressures up to 25 kg/cm²
Hydraulic pumps for high pressure up to 550 kg/cm²

Detailed Technical Specifications :

Model → Specifications ↓	PSI – PP1	PSI – PP2	PSI – PP3	PSI – PP3L	PSI – HPP1
Maximum Pressure	100 psig	350 psig	30 psig	30 psig	700 kg/cm²
Pressure Chamber	1	1	1	2	1
Approximate Volume	400 cc	Not Applicable	200 cc	200 cc	Not Applicable
Thermal Insulation	Not Provided	Not Provided	Provided	Provided	Not Provided
Operation Action	Two Knob-Screws	Scissor-Spring	Knob- Screw	Knob- Screw	Scissor-Spring
Pressure Media	Air				Distilled water
Maximum Vacuum Generated	80% of atmospheric pressure		70% of atmospheric pressure	75% of atmospheric pressure	80% of atmospheric pressure
Controls	Coarse & Fine Control		Fine Control	Fine Control	Coarse & Fine Control
Wetted parts	Anodized Aluminium		Anodized Aluminium	Anodized Aluminium	SS 304 & Acrylic
‘O’ Rings	Neoprene
Outlet Connection	2 ferule-less Union	2 standard ¼” BSP (M)	2 standard ferule-less Union	4 standard ferule-less Union	¼” BSP Male
Size	250 x 140 x110 mm	230x 130x70 mm	200(L) x 85 dia mm		300 x 150 x 80 mm
Weight	1.6 kg	1 kg	1.15 kg		1.7 kg
Reservoir Capacity	Not applicable				100 ml

Calibration Hand Pressure Pumps