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VRL6 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

VRL6: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, connection_type: THREADED EXTERNAL PIPE ALL ENDS, special_features: VRL VALVE DESIGNED TO PROTECT BLOWERS AND/OR MOTORS FROM OVER PRESSURIZATION OR EXCESS VACUUM; 2" NPT, style_designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY., valve_operation_method: AUTOMATIC, end_item_identification: NEW CONSTRUCTION LCS2. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-564-2427, 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
VRL6
NSN: 4820-01-564-2427
FSC: 4820 — Valves, Nonpowered
CAGE: 3KUW3 — FPZ, INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
special_featuresVRL VALVE DESIGNED TO PROTECT BLOWERS AND/OR MOTORS FROM OVER PRESSURIZATION OR EXCESS VACUUM; 2" NPT
style_designatorSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
valve_operation_methodAUTOMATIC
end_item_identificationNEW CONSTRUCTION LCS2
thread_series_designatorNPT ALL ENDS
NSN4820-01-564-2427
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: VRL6 · 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
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
•
MATERIAL: ALUMINUM ALLOY BODY
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
SPECIAL FEATURESVRL VALVE DESIGNED TO PROTECT BLOWERS AND/OR MOTORS FROM OVER PRESSURIZATION OR EXCESS VACUUM; 2" NPT
END ITEM IDENTIFICATIONNEW CONSTRUCTION LCS2
MATERIALALUMINUM ALLOY BODY
THREAD SERIES DESIGNATORNPT ALL ENDS
VALVE OPERATION METHODAUTOMATIC
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is VRL6?
VRL6 is a VALVE,SAFETY RELIEF.
What is the NSN for VRL6?
VRL6 is cataloged in the U.S. Government catalog under NSN 4820-01-564-2427. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.