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SD63BUL — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

SD63BUL: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include material: COPPER ALLOY BODY, end_item_identification: PNEUMATIC FLUID PRESSURE CONTROLLER, part_name_assigned_by_controlling_agency: CTLR, BR, BUL, FLOW. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-561-6223, 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
SD63BUL
NSN: 4820-01-561-6223
FSC: 4820 — Valves, Nonpowered
CAGE: 41387 — SIEMENS INDUSTRY, INC. DBA SIEMENS ENERGY DIV PROCESS INDUSTRIES AND DRIVES (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
supplementary_featuresAMBIENT TEMP LIMITS -40 DEG. F TO +180 DEG. F; NEEDLE VALVE CLOSED 50 PSIG, OPEN 250 PSIG; CONSTANT DIFFERENTIAL FLOW CONTROLLER; BODY CONSTRUCTION BRASS WITH NEOPRENE DIAPHRAGM
end_item_identificationPNEUMATIC FLUID PRESSURE CONTROLLER
part_name_assigned_by_controlling_agencyCTLR, BR, BUL, FLOW
NSN4820-01-561-6223
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SD63BUL · 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
•
SUPPLEMENTARY FEATURES: AMBIENT TEMP LIMITS -40 DEG. F TO +180 DEG. F; NEEDLE VALVE CLOSED 50 PSIG, OPEN 250 PSIG; CONSTANT DIFFERENTIAL FLOW CONTROLLER; BODY CONSTRUCTION BRASS WITH NEOPRENE DIAPHRAGM
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESAMBIENT TEMP LIMITS -40 DEG. F TO +180 DEG. F; NEEDLE VALVE CLOSED 50 PSIG, OPEN 250 PSIG; CONSTANT DIFFERENTIAL FLOW CONTROLLER; BODY CONSTRUCTION BRASS WITH NEOPRENE DIAPHRAGM
PART NAME ASSIGNED BY CONTROLLING AGENCYCTLR, BR, BUL, FLOW
END ITEM IDENTIFICATIONPNEUMATIC FLUID PRESSURE CONTROLLER
MATERIALCOPPER ALLOY BODY
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
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SD63BUL?
SD63BUL is a VALVE,REGULATING,FLUID PRESSURE.
What is the NSN for SD63BUL?
SD63BUL is cataloged in the U.S. Government catalog under NSN 4820-01-561-6223. 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.