Ralston DCAP Pneumatic Hand Pump
Ralston DCAP pneumatic hand pump: up to 650 psi (45 bar) with 0.001 psi fine adjustment and Quick-test outlets — a durable field pump for pressure calibration and testing.
Pick your exact configuration in the ordering table below to add it to your cart.
Same-day response on quotes. ISO/IEC 17025 accredited calibration available.
Overview
The Ralston DCAP is a pneumatic hand pump for field pressure calibration and testing, generating up to 650 psi (45 bar) with very fine adjustment near the setpoint.
DCAP-0000 configuration
Per Ralston, the DCAP-0000 kit pairs the pump with a 1/4" male NPT x male Quick-test stainless steel process connection (no check valve) and a 3 ft Quick-test 6,900 psi hose with stainless steel ends.
Related
For pressure and vacuum from the same platform, see the Ralston DCAP-PV. Read the pump against a digital pressure gauge or pressure calibrator, and connect with Quick-test hoses and fittings.
Specifications
| Key specifications (Ralston datasheet) | |
| Max pressure | 650 psi / 45 bar / 4.5 MPa |
| Fine adjustment resolution | 0.001 psi / 7 Pa |
| Piston displacement | 0.67 cu in |
| Media compatibility | Air, inert gas, natural gas |
| Outlet ports | Male Quick-test; male Quick-test with cap and chain |
| Pump materials | Anodized aluminum, brass, stainless steel |
| Seal materials | Buna-N, Delrin |
| Operating temperature (pump) | 0 to 140 °F (−18 to 60 °C) |
| Burst pressure | 2,600 psi / 180 bar |
| Pump weight | 1.75 lb / 795 g |
Videos
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Configure your DCAP
Pick your options and we'll build the exact part number with a list-price estimate.
Select a included items to build your part number.
Specify the included items for a pneumatic scissor hand pump to work with your reference gauge and process connection. Pump is 650 psi / 45 bar. Shipping and tax are confirmed when we review your order.
Ordering information
9 ordering models available.
| Model | Description | List Price | |
|---|---|---|---|
| DCAP-0000 | Ralston DCAP Pressure Test Pump Kit | $968.24 | |
| DCAP-1KPSIG-FL | Ralston DCAP Pressure Test Pump with 1000 psi FieldLab | $3,676.24 | |
| DCAP-1MSA | Ralston DCAP Pressure Test Pump with 1/8" Male NPT Gauge Connection | $1,019.23 | |
| DCAP-2FSA | Ralston DCAP Pressure Test Pump with 1/4" Female NPT Gauge Connection | $1,022.18 | |
| DCAP-2MSA | Ralston DCAP Pressure Test Pump with 1/4" Male NPT Gauge Connection | $1,022.18 | |
| DCAP-KIT4 | DCAP pneumatic pump, 3 gauge adapters - (1/4" MNPT, 1/8" MNPT, 1/4" FNPT), 3ft hose, zippered bag, carrying case | $1,440.66 | |
| DCAP-KIT5-GP | DCAP pneumatic pump, 1000 psi/7 MPa LC20 gauge, case, 3ft hose, 1/4" MNPT adapter, zippered bag | $2,275.29 | |
| DCAP-KIT5-GP-B1 | DCAP pneumatic pump, 1000 psi LC20 gauge with Bluetooth, case, 3ft hose, 1/4" MNPT adapter, zippered bag | $2,404.07 | |
| DCAP-KIT6-GP | DCAP pneumatic pump, 1000 psi/7 MPa LC20 gauge, 3ft hose, 1/4" MNPT adapter | $1,961.74 |
Related products
Official compatibility and accessories for this model - not look-alike suggestions.
