PartsTable
Technical Data Sheet
8729DM91M ✓ 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,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY FLOW CONTROL DEVICE, bonnet_type: INSIDE SPRING, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: STREAMLINED WITH ONE BRAZING RING ALL ENDS, style_designator: ANGLE, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-130-3601, 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
8729DM91M
NSN: 4820-01-130-3601
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY FLOW CONTROL DEVICE
bonnet_typeINSIDE SPRING
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSTREAMLINED WITH ONE BRAZING RING ALL ENDS
style_designatorANGLE
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
bonnet_attachment_methodBOLTED
media_for_which_designedWATER, SALT SECOND RESPONSE
NSN4820-01-130-3601
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 8729DM91M · 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
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
BONNET TYPE: INSIDE SPRING
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
CONNECTION STYLE: STREAMLINED WITH ONE BRAZING RING ALL ENDS
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
FLOW CONTROL DEVICE: DISK
MATERIAL: NICKEL ALLOY FLOW CONTROL DEVICE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES ALL ENDS IN
BONNET TYPEINSIDE SPRING
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
CONNECTION STYLESTREAMLINED WITH ONE BRAZING RING ALL ENDS
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
FLOW CONTROL DEVICEDISK
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALNICKEL ALLOY SEAT
MEDIA FOR WHICH DESIGNEDWATER, SALT SECOND RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
872-9Interchangeable
interchangeable cross-reference
interchangeable
SM-B-387581Interchangeable
interchangeable cross-reference
interchangeable
20145Interchangeable
interchangeable cross-reference
interchangeable
322.44Interchangeable
interchangeable cross-reference
interchangeable
6515NCM082705Interchangeable
interchangeable cross-reference
interchangeable
RFD-1673-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8729DM91M?
8729DM91M is a VALVE,SAFETY RELIEF.
What parts can replace 8729DM91M?
There are 6 known substitutes for 8729DM91M: 872-9, SM-B-387581, 20145 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8729DM91M?
8729DM91M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-130-3601. This indicates validated use in U.S. government and defense supply chains.
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