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DFARS Specialty Metals
Easy-Set Plastic Threaded Precision Flow-Adjustment Valves
Black Glass-Filled Polyester Plastic Body
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Flow Coefficient (Cv)—Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.
Valves | Mounting Nuts | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | ||||||||||||||||||
Pipe Size | Flow Coefficient (Cv) | Max. Pressure @ Temp. | Ht. | Lg. | Temp. Range, ° F | Seal Material | Panel Cutout Dia. | Seat Material | Needle Material | End-to-End Lg. | For Use With | Valve Type | Each | Each | ||||
NPTF Female × NPTF Female | ||||||||||||||||||
| 1/8 | 0.26 | 200 psi @ 200° F | 2 13/16" | 1 15/16" | 0 to 200 | Buna-N | 1" | Polypropylene | Zinc-Plated Steel | 1 15/16" | Air, Oxygen | Needle | 4891K71 | 000000 | 4891K61 | 00000 | ||
| 1/4 | 0.48 | 200 psi @ 200° F | 2 13/16" | 1 15/16" | 0 to 200 | Buna-N | 1" | Polypropylene | Zinc-Plated Steel | 1 15/16" | Air, Oxygen | Needle | 4891K72 | 00000 | 4891K61 | 0000 | ||
| 3/8 | 1.06 | 200 psi @ 200° F | 3 7/8" | 2 7/8" | 0 to 200 | Buna-N | 1 3/8" | Polypropylene | Zinc-Plated Steel | 2 7/8" | Air, Oxygen | Needle | 4891K73 | 00000 | 4891K62 | 0000 | ||
| 1/2 | 1.35 | 200 psi @ 200° F | 3 7/8" | 2 7/8" | 0 to 200 | Buna-N | 1 3/8" | Polypropylene | Zinc-Plated Steel | 2 7/8" | Air, Oxygen | Needle | 4891K74 | 00000 | 4891K62 | 0000 | ||
| 3/4 | 1.96 | 200 psi @ 200° F | 4 3/16" | 3" | 0 to 200 | Buna-N | 1 3/8" | Polypropylene | Zinc-Plated Steel | 3" | Air, Oxygen | Needle | 4891K75 | 00000 | 4891K62 | 0000 | ||
Black Glass-Filled Polyester Plastic Body with Internal Check Valve
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Internal check valves actuate when the pressure changes to stop flow control from the controlled direction and allow free flow in the opposite direction. Valves with an internal check valve are often used to control the speed of air cylinders and air-powered motors.
Flow Coefficient (Cv)—Flow coefficient (Cv) is a measurement that indicates how much airflow can pass through a valve.
Valves | Mounting Nuts | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | ||||||||||||||||||
Pipe Size | Flow Coefficient (Cv) | Max. Pressure @ Temp. | Ht. | Lg. | Temp. Range, ° F | Seal Material | Panel Cutout Dia. | Seat Material | Needle Material | End-to-End Lg. | For Use With | Valve Type | Each | Each | ||||
NPTF Female × NPTF Female | ||||||||||||||||||
| 1/8 | 0.26 | 200 psi @ 200° F | 2 13/16" | 1 15/16" | 0 to 200 | Buna-N | 1" | Polypropylene | Zinc-Plated Steel | 1 15/16" | Air, Oxygen | Needle | 48995K31 | 000000 | 4891K61 | 00000 | ||
| 1/4 | 0.48 | 200 psi @ 200° F | 2 13/16" | 1 15/16" | 0 to 200 | Buna-N | 1" | Polypropylene | Zinc-Plated Steel | 1 15/16" | Air, Oxygen | Needle | 48995K33 | 00000 | 4891K61 | 0000 | ||
| 3/8 | 1.06 | 200 psi @ 200° F | 3 7/8" | 2 7/8" | 0 to 200 | Buna-N | 1 3/8" | Polypropylene | Zinc-Plated Steel | 2 7/8" | Air, Oxygen | Needle | 48995K35 | 00000 | 4891K62 | 0000 | ||
| 1/2 | 1.35 | 200 psi @ 200° F | 3 7/8" | 2 7/8" | 0 to 200 | Buna-N | 1 3/8" | Polypropylene | Zinc-Plated Steel | 2 7/8" | Air, Oxygen | Needle | 48995K37 | 00000 | 4891K62 | 0000 | ||
| 3/4 | 1.96 | 200 psi @ 200° F | 4 3/16" | 3" | 0 to 200 | Buna-N | 1 3/8" | Polypropylene | Zinc-Plated Steel | 3" | Air, Oxygen | Needle | 48995K39 | 000000 | 4891K62 | 0000 | ||
