www.ralstoninst.com

1.800.347.6575

R alston Instruments, LLC

Nitrogen Calibration Manifolds

QTCM (3000 psi / 210 bar), QSCM (5000 psi / 350 bar)

Specifications

Type of Manifold

QTCM (brass) manifolds

QSCM (stainless steel) manifolds

Maximum pressure

3000 psi (210 bar)

5000 psi (350 bar)

Pressure media

Compressed nitrogen

Compressed nitrogen

Fine adjust resolution

± 0.1 psi (6.9 mbar)

± 0.1 psi (6.9 mbar)

Reference connection

Brass - see below

Stainless steel - see below

Inlet port

Female Quick-test, brass (QTHA-3SBA)

Female Quick-test, stainless steel (QTHA-3SSA)

Outlet ports

(2) male Quick-test, brass (QTHA-3SB0)

(2) male Quick-test, stainless (QTHA-3SS0)

Quick-test inlet hose

20’ (6.1 m) long with check-valve 1 end, brass (QTQC-HOS-20’)

20’ (6.1 m) long, check-valve 1 end, stainless steel (QTQN-HOS-20’)

Quick-test outlet hose

2’ (0.6 m) long, brass (QTQT-HOS-2’)

2’ (0.6 m) long, stainless steel (QSQS-HOS-2’)

Process connections

(2) 1/4” male NPT, brass (QTHA-2MB0)

(2) 1/4” male NPT, stainless steel (QTHA-2MS0)

Construction

Brass, stainless steel fine adjust assembly

Stainless steel

Seal material

Buna-N,Teflon™, Delrin™

Buna-N,Teflon™, Delrin™

Weight

2.2 lb (1.0 kg)

2.2 lb (1.0 kg)

Ordering information

QTCM (brass) manifolds with NPT connections:

Model

Description

QTCM-1MBA-20’-2’

1/8” male NPT, gauge adapter (QTHA-1MBA), 2 hoses, 2 process connections

QTCM-2MBA-20’-2’

1/4” male NPT, gauge adapter (QTHA-2MBA), 2 hoses, 2 process connections

QTCM-2FBA-20’-2’

1/4” female NPT, gauge adapter (QTHA-2FBA), 2 hoses, 2 process connections

QTCM-0000-0-0

QTCM only, no gauge adapter, no hoses, no process connections

QSCM (stainless steel) manifolds with NPT connections

Model

Description

QSCM-1MSA-20’-2’

1/8” male NPT, gauge adapter (QTHA-1MSA), 2 hoses, 2 process connections

QSCM-2MSA-20’-2’

1/4” male NPT, gauge adapter (QTHA-2MSA), 2 hoses, 2 process connections

QSCM-2FSA-20’-2’

1/4” female NPT, gauge adapter (QTHA-2FSA), 2 hoses, 2 process connections

QSCM-0000-0-0

QSCM only, no gauge connection, no hoses, no process connections

For manifolds with custom length hoses change first hose (inlet) or second hose (outlet) to desired length. Contact your Ralston Instruments dealer or the

factory for pricing on custom length hoses. For accessories, repair kits and hoses see page 17. For a complete list of accessories and parts see product manual or

detailed specification sheet. For a list of the most commonly used gauge and process connections see page 18. For a complete list refer to Ralston Instruments

Pressure Connection catalog. Contact your Ralston Instruments dealer or the factory for information on reference gauges and pressure calibration kits.

The most economical solution for doing static pressure

calibrations with compressed nitrogen gas.

Features:

• Availableinbothbrass(3000psi/210bar)andstainlesssteel(5000

psi / 350 bar) models

• Fineadjustmentpistonprovidesprecisepressurecontrolinsteadof

trying to make adjustments with a pressure regulator and a needle

valve

• Soft-seatedvalvesmakefillingandventingthesystemveryprecise

• Compactdesignallowsthemanifold,gaugeadapterandhosestofit

in the included nylon bag

• Becausepressureiscontrolledatthedeviceundertest,thenitrogen

cylinder can be mounted on a truck

• LowvolumeQuick-testhose,gaugeadapterandprocessconnection

reduce gas usage and make nitrogen cylinders last longer

• MadeinU.S.A.