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77738017-3 — VALVE,EXPANSION

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

77738017-3: VALVE,EXPANSION.

The VALVE,EXPANSION is a the manufacturer industrial component. Key specifications include body_style: ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS, bulb_length: 2.970 INCHES NOMINAL IN, bulb_diameter: 0.500 INCHES NOMINAL IN, special_features: ITEM ALTERED TO 0.970 IN. DIAMETER IN TWO PLACES IN, flow_control_device: ANY ACCEPTABLE, capillary_tube_length: 18.000 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-078-0345, 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
77738017-3
NSN: 4820-01-078-0345
FSC: 4820 — Valves, Nonpowered
CAGE: 01359 — TRIUMPH THERMAL SYSTEMS - MARYLAND, INC. (USA)
SPECIFICATIONS
body_styleANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS
bulb_length2.970 INCHES NOMINAL IN
bulb_diameter0.500 INCHES NOMINAL IN
special_featuresITEM ALTERED TO 0.970 IN. DIAMETER IN TWO PLACES IN
flow_control_deviceANY ACCEPTABLE
capillary_tube_length18.000 INCHES NOMINAL IN
end_connection_quantity2
valve_equalizer_locationEXTERNAL
valve_expansion_control_typeTHERMOSTATIC
valve_evaporator_temp_range_designationHIGH
first_connection_face_to_centerline_distance2.470 INCHES NOMINAL IN
second_connection_face_to_centerline_distance1.540 INCHES NOMINAL IN
NSN4820-01-078-0345
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 77738017-3 · 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: ANY ACCEPTABLE
•
VALVE EQUALIZER LOCATION: EXTERNAL
•
BODY STYLE: ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS
•
BULB LENGTH: 2.970 INCHES NOMINAL IN
•
BULB DIAMETER: 0.500 INCHES NOMINAL IN
•
FIRST CONNECTION FACE TO CENTERLINE DISTANCE: 2.470 INCHES NOMINAL IN
•
END CONNECTION QUANTITY: 2
•
SECOND CONNECTION FACE TO CENTERLINE DISTANCE: 1.540 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEANY ACCEPTABLE
VALVE EQUALIZER LOCATIONEXTERNAL
BODY STYLEANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS
BULB LENGTH2.970 INCHES NOMINAL IN
BULB DIAMETER0.500 INCHES NOMINAL IN
FIRST CONNECTION FACE TO CENTERLINE DISTANCE2.470 INCHES NOMINAL IN
END CONNECTION QUANTITY2
SECOND CONNECTION FACE TO CENTERLINE DISTANCE1.540 INCHES NOMINAL IN
CAPILLARY TUBE LENGTH18.000 INCHES NOMINAL IN
SPECIAL FEATURESITEM ALTERED TO 0.970 IN. DIAMETER IN TWO PLACES 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77738017-3?
77738017-3 is a VALVE,EXPANSION.
What is the NSN for 77738017-3?
77738017-3 is cataloged in the U.S. Government catalog under NSN 4820-01-078-0345. This indicates validated use in U.S. government and defense supply chains.
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