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Test Fittings , Test Hoses & Adapters
Ralston Home
Used to adapt one or both ends of the hose to the commonly used ports. Ralston Instruments adaptors are made of brass and will not rust.
The MB and FB adaptors have an optional internal check valve which opens when the hose is attached.
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| Quick Test Hose Assembly - QTHA
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Quick Test Hose assemblies can be furnished in any length with either a knurled brass nut and probe end or a stainless steel 1/4" stub end. The hose has an extremely small diameter (.070"), is very flexible and has a very high pressure rating (6900 psi). This
flexibility, light weight and high rating make it ideal when high pressure must be transmitted for calibration.
The knurled brass ends utilize a unique 'O' ring seal to make a
finger tight-pressure tight connection to our series of hose adaptors.
The stainless steel tube stub allows you to swage on your own ferrules and nut for wrench-tight connection to tube fittings. Both types of hose end are
reinforced with a tension relief spring.
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| | Quick Test Fittings
For permanent installation in a 1/4' NPT port between instrument and shut-off valve.
Utilizes the unique Quick Test finger-tight, pressure-tight seal
Complete with plug and cap, Brass or Stainless Steel
Optional built-in check valve, opens when hose is attached
Contains Buna N 'O' ring and not for use above 200 degrees F.
Specify: QTFT 000B (Brass) QTFT 000S (Stainless Steel)
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1/8" Male NPT |
QTHA 1MBO
| | 1/8" Male NPT internal check valve
| QTHA 1 MB1
| | 1/4" Male NPT
| QTHA 2MBO
| | 1/4" Male NPT stainless steel
| QTHA 2MSO
| | 1/4" Male NPT internal check valve
| QTHA 2MB1
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1/ 8" Female NPT |
QTHA 1 FBO
| | 1/8" Female NPT internal check valve |
QTHA 1FB1
| | 1/4" Female NPT |
QTHA 2FBO
| | l /4" Female NPT internal check valve |
QTHA 2FB1
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*All QTHA TBO adaptors fit Swagelok, Tylok, Parker and Hoke fittings.
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1/4" Tube |
QTHA 2TBO
| | 3/8" Tube
| QTHA 3TBO
| | 1/2" Tube |
QTHA 4TBO
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1/4" Female Flare |
QTHA 2FBF
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Probe - Nut by I /4" Female NPT |
QTHA 2 FBA
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This is a Quick Test fitting installed in a quality shut-off
valve. Valve has a 1/4" Male NPT inlet x 1/4" Female NPT instrument port.
| | Brass |
QTVF 000B
| | Stainless Steel
| QTVF 000S
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