Conrader BG-Series Venting Pilot Valve with Manual Hand Unloader
The Conrader BG-Series is a brass piloted (venting-style) unloader valve with a manual hand unloader, used to relieve compressed-air pressure and unload the pump on reciprocating air compressors. The integrated hand unloader lets the operator manually bleed tank pressure for safe, load-free starts, while the adjustable pilot sets precise load and unload pressures for reliable automatic cycling. Choose the configuration below to match your compressor's inlet and outlet connections.
Key specifications
- Unload set pressure range: 40 to 250 psig
- Set pressure differential range: 10 to 50 psid
- Operating temperature range: -65°F to 400°F
- Max flow capacity: 20 SCFM @ 100 psig
- Pilot inlet: 1/4" (-4) Male NPT
- Manual aluminum hand unloader (standard)
- Muffler on unloader outlet (standard) for quieter venting
- Body & fittings: brass; O-rings: silicone/Viton; poppets: reinforced PTFE; springs: stainless steel
Configurations
- BG1-M — 1/4" MNPT pilot inlet × 1/4" tube (compression) unloader outlet with muffler
- BG2-M — 1/4" MNPT pilot inlet × 1/4" female NPT unloader outlet
- BG3 — 1/4" MNPT pilot inlet × 1/4" tube unloader outlet (larger unloader inlet)
Typical applications
Pressure control and automatic load/unload on piston air compressors, gas-engine-driven compressors, and pressure-switch-controlled systems where a manual unloading feature is needed for safe starting.
The Conrader BG-Series venting pilot valve delivers dependable, field-adjustable compressor pressure control in a rugged brass body, with a built-in manual hand unloader and a standard muffler for quieter operation.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
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