Arrow Pneumatics R378I Midflow Instrument Air Pressure Regulator — 1" NPT, 250 SCFM, 3–20 PSI
The Arrow Pneumatics R378I is a Midflow series instrument-pressure air regulator built for high-flow, low-pressure precision. With a 3–20 PSI adjustment range, 1" NPT ports, and flow up to 250 SCFM, it maintains steady, creep-free pressure for larger pneumatic systems and process air applications.
Key specifications
- Midflow series instrument-pressure regulator (R378 "I" option)
- Port size: 1" NPT
- Pressure adjustment range: 3 to 20 PSI (instrument)
- Maximum supply pressure: 250 PSIG
- Maximum flow: 250 SCFM
- Micro-finished brass seat — no reduced-pressure creep — with reinforced diaphragm
- Relieving style standard · minimal pressure droop via efficient aspiration
- Three-position non-rising knob: push to lock, pull to adjust, detach for tamper resistance
- Body: black-coated aluminum · Bonnet: glass-filled nylon · Seals: Buna-N · Seat: brass
- 1/4" full-flow gauge port · Operating temperature: 40°F to 120°F
- Easily panel mounted · tamper-proof cap included
Typical applications
High-volume instrumentation and process air, large assembly lines, finishing systems, and industrial pneumatic equipment requiring precise low-pressure control at high flow.
The Arrow Pneumatics R378I pairs a heavy-duty aluminum body and brass seat with 3–20 PSI instrument-pressure accuracy and 250 SCFM capacity — dependable regulation for demanding compressed air systems.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
We offer Financing Through Many Different Avenues:
- Affirm is great for smaller purchases. You can do this during checkout.
- Clicklease is a great option for Instant decisions up to 25k. NO Hard credit pull. No Time in Business Required. More information can be found out about it here: https://www.clicklease.com/partner/warthog-air-compressor-store
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