A medium-sized "turn-to-open" Manual Relief Valve with a recessed captive screw that must be rotated 1 or 2 turns with a screwdriver or coin to open the valve. It has a safety wire feature. The TA327 Pressure Relief Valve meets the requirement on Nav Buweps Drawing No. 1296841. The valve can be mounted through a 0.51 inch (13 mm) diameter hole.
Part No. TA328, without the hex nut, installs in a 0.500-20 UNF-2B threaded boss.
|Materials||Housing - Aluminum|
|Finish||Housing - Anodize|
|Mounting Requirements||Nut & gasket, provided with each valve|
|Mounting Hole Diameter||0.51 ± 0.01 (13 ± 0.25 mm)|
|Installation Torque||30-40 in. - lbs. (3.4-4.5 N•m)|
|Maximum Wall Thickness||0.18 (5 mm)|
|Weight||0.053 lbs. (24 grams)|
Add washer for wall thickness less than 0.052 (1.3 mm). (P/N MS15795-855, order separately.)
For threaded boss installation: 0.500-20 UNF-2A; 0.51 ± 0.01 (13 ± 0.25 mm) diameter X 0.052 (1.3 mm) minimum deep counterbore required for thread relief. Part No. TA328 comes without hex nut.
The TA327 is appropriate for use on NEMA 1, 2, 3, 3R, 3S, 4, 5, 6, 12, 12K, and 13 enclosures, as well as IP65/IP67 enclosures. This item may also be appropriate for use on other NEMA or IP enclosures, depending upon the application. Contact AGM's Engineering department for more information.