PartsTable
Technical Data Sheet
EP20U181 ✓ 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

The VALVE,ANGLE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 377 BODY, seat_angle: 37.0 DEGREES SECOND END, bonnet_type: INSIDE SCREW, thread_class: 2A SECOND END A, connection_type: UNTHREADED INTERNAL TUBE FIRST END, connection_style: SOCKET (TUBE) FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-203-6042, 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
EP20U181
NSN: 4820-00-203-6042
FSC: 4820
CAGE: 10855 — CARRIER CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY 377 BODY
seat_angle37.0 DEGREES SECOND END
bonnet_typeINSIDE SCREW
thread_class2A SECOND END A
connection_typeUNTHREADED INTERNAL TUBE FIRST END
connection_styleSOCKET (TUBE) FIRST END
special_featuresFLOW CONTROL BRASS AND PLASTIC,NYLON RESIN/ZYTEL 103
style_designatorANGLE
thread_directionRIGHT-HAND SECOND END
operating_pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
nominal_thread_size0.750 INCHES SECOND END IN
NSN4820-00-203-6042
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: EP20U181 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
STYLE DESIGNATOR: ANGLE
MEDIA FOR WHICH DESIGNED: REFRIGERANT 22 SECOND RESPONSE
THREAD DIRECTION: RIGHT-HAND SECOND END
THREAD CLASS: 2A SECOND END A
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
MATERIAL: STEEL COMP 303 STEM
CONNECTION STYLE: SOCKET (TUBE) FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORANGLE
MEDIA FOR WHICH DESIGNEDREFRIGERANT 22 SECOND RESPONSE
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD CLASS2A SECOND END A
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
MATERIALSTEEL COMP 303 STEM
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
CONNECTION STYLESOCKET (TUBE) FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-15345 ALLOY 3 MIL SPEC 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE
SPECIAL FEATURESFLOW CONTROL BRASS AND PLASTIC,NYLON RESIN/ZYTEL 103
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
6433Interchangeable
interchangeable cross-reference
interchangeable
DI0137-04Interchangeable
interchangeable cross-reference
interchangeable
14153Interchangeable
interchangeable cross-reference
interchangeable
853946Interchangeable
interchangeable cross-reference
interchangeable
CS400Interchangeable
interchangeable cross-reference
interchangeable
11621444Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is EP20U181?
EP20U181 is a VALVE,ANGLE.
What parts can replace EP20U181?
There are 17 known substitutes for EP20U181: 6433, DI0137-04, 14153 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for EP20U181?
EP20U181 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-203-6042. This indicates validated use in U.S. government and defense supply chains.
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