Description
TA327 Medium-Profile Manual Relief Valve
Complies with NAV BUWEPS Drawing No. 1296841
The TA327 is a medium-sized, manually operated relief valve featuring a recessed captive screw that must be rotated one to two full turns using a screwdriver or coin to open. The design includes a provision for safety wire to prevent unauthorised or accidental opening. The valve mounts through a 0.51 in. (13 mm) diameter hole.
A threaded version, Part No. TA328, is available without a hex nut and is designed for installation into a 0.500-20 UNF-2B threaded boss.
Specifications:
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Housing Material: Aluminium
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Finish: Anodised
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Mounting Method: Nut and gasket supplied with each valve
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Mounting Hole Diameter: 0.51 ± 0.01 in. (13 ± 0.25 mm)
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Installation Torque: 30–40 in-lbs (3.4–4.5 N·m)
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Maximum Wall Thickness: 0.18 in. (5 mm)
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Weight: 0.053 lbs (24 grams)
Note: For wall thicknesses below 0.052 in. (1.3 mm), a washer (P/N MS15795-855, sold separately) is recommended.
For Threaded Boss Installations:
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Thread Size: 0.500-20 UNF-2A
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Thread Relief Requirement: 0.51 ± 0.01 in. (13 ± 0.25 mm) diameter with a counterbore depth of at least 0.052 in. (1.3 mm)
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Part No. TA328 is intended for this configuration and is supplied without a hex nut.
Applications:
The TA327 is suitable for enclosures rated NEMA 1, 2, 3, 3R, 3S, 4, 5, 6, 12, 12K, and 13, as well as IP65 and IP67. It may also be compatible with other NEMA or IP-rated enclosures depending on application-specific requirements.
