Ralston Logo Ralston Instruments Made In the USA

Adapters

Quick-test hose and adapters seal via an O-ring and probe. The probe slides into the O-ring and provides the seal while the threads keep the probe in place. This simple and reliable method allows for leak-free connections in any calibration.

Find the right adapter quickly

Find the right adapter for your connection quickly and easily using our new adapter search.

Find Adapters
Connector Example

Browse all Adapter Categories

NPT Male Quick-test Adapters

Connects to Female NPT to Quick-test hoses with brass or stainless steel hose ends

NPT Male Quick-test Fittings

A removable cap provides easy access connect a Quick-test hose to the process for calibration purposes and is easily sealed bubble-tight again when calibration is complete

NPT Male QD (Quick Disconnect) Adapters

Make a bubble-tight seal on any Female NPT pressure device without using thread sealant or a wrench.

NPT Male QD (Quick-Disconnect) fittings

Make calibrating pressure transmitters a snap by eliminating the need for thread sealant or wrenches when connecting to any female NPT connection

NPT Male Quick-test Pressure Calibrator Adapters

Quickly connect a Female NPT pressure calibrator or other pressure device to Ralston hand pump or nitrogen calibration equipment

NPT Female Adapters

Connect a Quick-test hose to an NPT pressure gauge or any Male NPT device using thread sealant and a wrench

NPT Female Quick-test Gauge Adapters

Connect Male NPT pressure gauge or other Male NPT device to a Ralston hand pump or nitrogen calibration device to create one side of a quick-disconnect

NPT Female Quick Disconnect Adapters

Unique adapters that connect Quick-test hoses to a male NPT pressure gauge or other Male NPT device allow one to connect a hose to a pressure gauge, calibrate it and remove it without a wrench or thread sealant

Tube Fitting Adapters

Make a bubble-tight connection to any Swagelok, Parker, Hoke, Gyrolok or equivalent fractional tube fitting by hand

37° Flare (AN) Adapter

Connect a male 37° flare fitting to a Quick-test hose without a wrench

DP Transmitter Bleed Port Adapters

Connect a Quick-test hose directly to a DP transmitter using the bleeder port when the transmitter is not mounted on a 3 or 5 valve manifold or when the manifold is not easily accessible.

DP Transmitter Bleed Port Quick-test Fittings

Ideal for situations where frequent calibration of a DP transmitter using the bleeder port is required

BSPP Male (RS) Quick-test Adapters

Connect Female BSPP (ISO 228/1) parallel thread to Quick-test hose for temporary installation

BSPP Male (RS) Quick-test Fittings

Connect Female BSPP (ISO 228/1) parallel thread to Quick-test hose for permanent installation where frequent calibrations are performed

BSPP Female (RG) Quick-test Adapters

Connect Male BSPP (ISO 228/1) parallel thread to Quick-test hose for temporary installation

BSPP Female (RG) Quick-test Gauge Adapters

Connect Male BSPP (ISO 228/1) parallel thread pressure gauge or other Male BSPP device to a Ralston hand pump or nitrogen calibration equipment

BSPP Female (RG) Quick-disconnect Adapters

Connect directly to the bottom of BSPP pressure gauges without thread sealant

BSPT Male (RT) Quick-test Adapters

Connects Female BSPT (ISO 7/1) taper pipe thread to Quick-test hose using thread sealant and a wrench

BSPT Male (RT) Quick-test fittings

A removable cap provides easy access connect a Quick-test hose to the process for calibration purposes and is easily sealed bubble-tight again when calibration is complete

BSPT Female (RT) Quick-test Adapters

Connect to any Male BSPT (ISO 7.1) taper thread connection using thread sealant and a wrench

Quick-test Bulkhead Connections

Connect Quick-test through a wall to a series of different connections

High Pressure adapters

Connect a Female 60 degree coned and threaded pressure fitting to a Quick-test hose

Minimess to Quick-test Adapters

Connect a Ralston Quick-test hose to a Hydrotechnik Minimess 1620 connection

Metric Female Parallel Thread Adapters

Connect a Metric parallel thread pressure gauge to a Quick-test hose

SAE/MS Male Quick-test Adapters

Connect to SAE/MS ports on pressure calibrators, pipelines and other processes

Medium Pressure Adapters

Connect to any Medium Pressure connection

Hose Tees

Connect three hoses or a combination of 3 hoses, adapters and hand pumps or manifolds

90° Elbows

Connect a hose to an adapter that is in a hard to reach place

Hose Unions

Connect either two Quick-test hoses together or two Quick-test adapters together, depending on the union

NPT Male Quick-test XT Adapters

Connects to Female NPT to Quick-test XT hoses with stainless steel hose ends

NPT Male Quick-test XT Fittings

Connect to Female NPT ports to 10,000 psi and leave in place with cap and chain

Male High Pressure Quick-test XT Adapters

Connect to High Pressure Equipment (HIP), Autoclave Engineers, Butech high pressure connections

NPT Female Quick-test XT Adapters

Connect a Quick-test XT hose to an NPT pressure gauge or any Male NPT device using thread sealant and a wrench

BSPP Male (RS) Quick-test XT Adapters

Connect Quick-test XT 10,000 psi hoses to BSPP Female connections

BSPP Male (RS) Quick-test XT Fittings

Connect to hand pumps, calibrators and other devices with Female BSPP connections to 10,000 psi

Quick-test XT hose unions

Connect 2 Quick-test XT hoses together quickly and easily

Quick-test XT Tees

Connect 3 Quick-test XT 10,000 psi hoses together without a wrench or thread sealant

Replacement Gauge Swivels

Mount gauges on hand pumps

Quick-test Cap and Chain

Cap any male Quick-test adapter with a cap and chain

Replacement Outlet Ports

Outlet ports used on hand pumps, nitrogen sources, volume controllers