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Technical Data Sheet

LF7RU2-2 3/4 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

LF7RU2-2 3/4: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nominal_length: 92.00 MILLIMETERS ALL ENDS MM, operating_pressure: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, special_test_features: TEMPERATURE RANGE: 33 DEGREES FAHRENHEIT TO 180 DEGREES FAHRENHEIT, maximum_operating_temp: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF, supplementary_features: WEIGHT 0.32LBS; SIZE (DN): 20MM; LENGTH: 92MM; BOLT HEIGHT: 48MM LBS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-583-7322, 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
LF7RU2-2 3/4
NSN: 4820-01-583-7322
FSC: 4820 — Valves, Nonpowered
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nominal_length92.00 MILLIMETERS ALL ENDS MM
special_featuresMATERIAL: BODY: LEAD FREE BRASS; CHECK MODULES: ENGINEERED PLASTIC; DISCS: SANTOPRENE; SEALS: EPDM; SPRINGS: STAINLESS STEEL
operating_pressure175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
special_test_featuresTEMPERATURE RANGE: 33 DEGREES FAHRENHEIT TO 180 DEGREES FAHRENHEIT
maximum_operating_temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
supplementary_featuresWEIGHT 0.32LBS; SIZE (DN): 20MM; LENGTH: 92MM; BOLT HEIGHT: 48MM LBS
end_item_identification4110-01-534-7675
part_name_assigned_by_controlling_agencyDUAL CHECK BACKFLOW PREVENTER
NSN4820-01-583-7322
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: LF7RU2-2 3/4 · 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
•
SPECIAL TEST FEATURES: TEMPERATURE RANGE: 33 DEGREES FAHRENHEIT TO 180 DEGREES FAHRENHEIT
•
NOMINAL LENGTH: 92.00 MILLIMETERS ALL ENDS MM
•
SUPPLEMENTARY FEATURES: WEIGHT 0.32LBS; SIZE (DN): 20MM; LENGTH: 92MM; BOLT HEIGHT: 48MM LBS
•
OPERATING PRESSURE: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 180.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
SPECIAL TEST FEATURESTEMPERATURE RANGE: 33 DEGREES FAHRENHEIT TO 180 DEGREES FAHRENHEIT
NOMINAL LENGTH92.00 MILLIMETERS ALL ENDS MM
SUPPLEMENTARY FEATURESWEIGHT 0.32LBS; SIZE (DN): 20MM; LENGTH: 92MM; BOLT HEIGHT: 48MM LBS
OPERATING PRESSURE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE DEGF
SPECIAL FEATURESMATERIAL: BODY: LEAD FREE BRASS; CHECK MODULES: ENGINEERED PLASTIC; DISCS: SANTOPRENE; SEALS: EPDM; SPRINGS: STAINLESS STEEL
PART NAME ASSIGNED BY CONTROLLING AGENCYDUAL CHECK BACKFLOW PREVENTER
END ITEM IDENTIFICATION4110-01-534-7675
MATERIALCOPPER ALLOY OVERALL
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 1
WAH7C150Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LF7RU2-2 3/4?
LF7RU2-2 3/4 is a VALVE,CHECK.
What parts can replace LF7RU2-2 3/4?
There is 1 known substitute for LF7RU2-2 3/4: WAH7C150. Substitute compatibility should be verified for your specific system.
What is the NSN for LF7RU2-2 3/4?
LF7RU2-2 3/4 is cataloged in the U.S. Government catalog under NSN 4820-01-583-7322. 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.