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20239B91SS — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20239B91SS: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 STEM, valve_size: 0.500 INCHES IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, flange_face_design: RAISED STRAIGHT ALL ENDS, operating_pressure: 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-133-5908, 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
20239B91SS
NSN: 4820-01-133-5908
FSC: 4820 — Valves, Nonpowered
CAGE: 5P967 — DANTE VALVE COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 303 STEM
valve_size0.500 INCHES IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
flange_face_designRAISED STRAIGHT ALL ENDS
operating_pressure225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
adjustable_pressure_range-11.0 TO 30.0 POUNDS PER SQUARE INCH LBS
first_connection_face_to_centerline_distance3.250 INCHES IN
second_connection_face_to_centerline_distance3.250 INCHES IN
NSN4820-01-133-5908
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20239B91SS · 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
•
FLOW CONTROL DEVICE: DISK
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
FLANGE FACE DESIGN: RAISED STRAIGHT ALL ENDS
•
CONNECTION TYPE: FLANGE ALL ENDS
•
OPERATING PRESSURE: 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
VALVE SIZE: 0.500 INCHES IN
•
ADJUSTABLE PRESSURE RANGE: -11.0 TO 30.0 POUNDS PER SQUARE INCH LBS
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
CONNECTION TYPEFLANGE ALL ENDS
OPERATING PRESSURE225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE SIZE0.500 INCHES IN
ADJUSTABLE PRESSURE RANGE-11.0 TO 30.0 POUNDS PER SQUARE INCH LBS
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
SECOND CONNECTION FACE TO CENTERLINE DISTANCE3.250 INCHES IN
FIRST CONNECTION FACE TO CENTERLINE DISTANCE3.250 INCHES IN
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 20239B91SS?
20239B91SS is a VALVE,SAFETY RELIEF.
What is the NSN for 20239B91SS?
20239B91SS is cataloged in the U.S. Government catalog under NSN 4820-01-133-5908. This indicates validated use in U.S. government and defense supply chains.
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