Air Valve 1/4'' D x 1/2'' D Mount 250-PSI and similar items

Campbell BAV1/4BLKLF 1/4" x 1/2" Lead-Free Snifter Air Valve Brass 250 PSI 5-Pack The Campbell BAV1/4BLKLF snifter air valve is a lead-free brass fitting designed to introduce controlled amounts of air into pneumatic water systems during pump operation, preventing vacuum lock and ensuring proper pressure tank function in shallow and deep-well reciprocating pump installations. Featuring a 1/4" female NPT inlet for connection to the pump cylinder and a 1/2" male NPT outlet for optional air volume control or venting, this pressure-actuated valve opens on suction stroke to admit air and closes automatically under pressure to maintain system integrity. Constructed from lead-free brass (?0.25% lead on wetted surfaces), it complies with federal safe drinking water standards and withstands up to 250 PSI at temperatures up to 140F. The compact, non-adjustable design installs horizontally or vertically without tools, making it ideal for residential well systems, irrigation setups, and off-grid water applications. Features - Lead-free brass construction meets NSF/ANSI 61 and Safe Drinking Water Act requirements - 1/4" female NPT inlet connects directly to pump cylinder ports - 1/2" male NPT outlet allows for venting or integration with air volume control systems - Automatically admits air during suction stroke and seals under pressure - Rated for 250 PSI and 140F?suitable for standard residential water systems - Non-adjustable, maintenance-free operation with no moving parts to service - Can be mounted horizontally or vertically for flexible installation - Prevents waterlogging and extends pressure tank life in pneumatic well systems - 5-pack provides value for multi-pump setups or contractor inventory - Bagged packaging ensures clean, ready-to-install condition Specifications - Brand Name: Campbell - Model Name: Campbell BAV1/4BLKLF - Part Number: BAV1/4BLKLF - Product Type: Snifter Air Valve - Valve Type: Pressure-Actuated Air Intake - Body Material: Lead-Free Brass - Inlet Connection: 1/4" Female NPT - Outlet Connection: 1/2" Male NPT - Maximum Pressure: 250 psi - Maximum Temperature: 140F - Lead Content: ?0.25% (Weighted Average on Wetted Surfaces) - Activation: Automatic (Pressure-Driven) - Adjustable: No - Mounting Orientation: Horizontal or Vertical - Item Weight: 0.100 lb (per valve) - Packaging Type: Bagged - Quantity per Package: 5 - Application: Shallow Deep-Well Reciprocating Pump Systems - Country of Origin: United States - UPC: 088409038169 - Global Trade Identification Number: 00088409038169 - Manufacturer: Campbell Manufacturing Inc Product Application This snifter valve is used by well drillers, plumbers, and rural homeowners in gravity-fed or pneumatic water systems where air must be periodically introduced into the pressure tank to prevent waterlogging. Commonly installed on cylinder heads of reciprocating (piston) pumps, it ensures consistent air cushioning for smooth pump cycling and tank longevity. Ideal for off-grid cabins, farms, and legacy well systems that rely on air-charged pressure tanks, the valve operates passively?requiring no electricity or manual intervention. The 5-pack supports system upgrades, service calls, or new installations across multiple properties, delivering code-compliant, durable performance in potable water applications where lead-free materials are mandated.