A540-3-4 — Technical Data Sheet

✓ Verified by PartsTable

— · GATE VALVE

WHAT YOU NEED TO KNOW

Full open or full close only — never throttle Rising stem shows position visually

Throttling a gate valve erodes seats

PRODUCT OVERVIEW

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include bowl_capacity: 0.333 PINTS, bowl_material: PLASTIC POLYCARBONATE, line_connection_thread_size_and_series/type_designator: 0.250-18 NPT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-007-5158, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

A540-3-4

NSN: 4820-01-007-5158
FSC: 4820
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)

SPECIFICATIONS

bowl_capacity	0.333 PINTS
bowl_material	PLASTIC POLYCARBONATE
line_connection_thread_size_and_series/type_designator	0.250-18 NPT
NSN	4820-01-007-5158

COMPONENT DIAGRAM

KEY FEATURES

•

FLOW CONTROL DEVICE: DISK, FLAT

•

OPENING PRESSURE SETTING: ERR-060

•

FIRST END STYLE DESIGNATOR: PLAIN

•

FIRST END CONNECTION TYPE: THREADED INTERNAL PIPE

•

SECOND END STYLE DESIGNATOR: PLAIN

•

SECOND END NOMINAL PIPE SIZE ACCOMMODATED: 0.750 INCHES IN

•

BULB DIAMETER: 0.040 INCHES NOMINAL IN

•

SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL

TECHNICAL CHARACTERISTICS (FLIS)

FLOW CONTROL DEVICE	DISK, FLAT
OPENING PRESSURE SETTING	ERR-060
FIRST END STYLE DESIGNATOR	PLAIN
FIRST END CONNECTION TYPE	THREADED INTERNAL PIPE
SECOND END STYLE DESIGNATOR	PLAIN
SECOND END NOMINAL PIPE SIZE ACCOMMODATED	0.750 INCHES IN
BULB DIAMETER	0.040 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST END	NOT IDENTICAL
END CONNECTION QUANTITY	2
TEMP RATING	210.0 FAHRENHEIT DEGF

VERIFIED SUBSTITUTES & CROSS-REFERENCES 10

540 3/4Interchangeable