GRACO 107142 – Bleed-Type Master Air Valve, Stainless Steel, 1/2″ NPT(M) to 1/2″ NPT(F)

GRACO 107142 – Stainless Bleed-Type Master Air Valve, 1/2 NPT(M) Inlet x 1/2 NPT(F) Outlet

Bleed-Type Master Air Valve designed for reliable operation in harsh environments with the Bulldog 43:1 air-powered pump system. Features 1/2 inch NPT inlet and outlet connections for optimal air pressure regulation in demanding industrial applications.

Specifications

Thread: 1/2 npt(m) inlet x 1/2 npt(f) outlet

Max Working Pressure: up to 4300 psi (301 bar) maximum operating pressure

Material: Wetted materials include carbon steel, stainless steel, chrome plating, zinc plating, nickel plating, brass, buna-n

Air Input Pressure: 100 psi (7 bar) maximum

Features

Relieves trapped air pressure at pump inlet

Male to female NPT configuration

Specifically designed for air pressure control

Bleed-type master air valve design

Compact, low-profile design makes installation easier

Corrosion resistant – lightweight aluminum construction

Applications

Air pressure relief

Pump inlet air management

Preventing air-related pumping problems

Air pressure regulation for Bulldog 43:1 hydraulic supply pumps

Industrial applications requiring reliable operation in harshest environments

Systems requiring precise air pressure control

Compatible Equipment

President pumps

Monark pumps

Bulldog 43:1 Hydraulic Supply Pump (218334 – Stainless Bulldog 43:1 Hydraulic Supply Pump)

Evenflo Control pump system

Related Parts

107741 – Air Valve for Senator, Bulldog and King pumps (3/4 npt(m) inlet x 3/4 npt(fbe) outlet)

106149 – Air Line Filter 1/2 npt(f)

106150 – Air Line Filter 3/4 npt(f)

104266 – Air Regulator

206197 – Air Regulator

206197 – 1/2 inch npt inlet and outlet air pressure regulator

207755 – 3/4 inch npt inlet and outlet air pressure regulator

106149 – 1/2 inch npt inlet and outlet air line filter

106150 – 3/4 inch npt inlet and outlet air line filter

Part of GRACO’s air controls and lubrication system for ram pumps, specifically engineered for President and Monark pump models Part of the air pressure regulation system for GRACO’s Bulldog 43:1 air-powered pump designed for reliable operation with efficient, large ported air valve technology. Required in system to reduce risk of serious bodily injury, including fluid injection, splashing in the eyes, and injury from moving parts, if you are adjusting or repairing the pump. This valve relieves air trapped between the valve and the pump after the air supply is shut off. Trapped air may cause the pump to cycle unexpectedly. Locate the valve within easy access of the pump. Labeled as item (A) in the installation diagram.

Reference Manuals

336833 (Page 49) Single Component Catalog – Buyer’s Guide and Specifications

352287 (Page 2) Bulldog 43:1 Air-Powered Pump

306402 (Page 6) President 10:1 Ratio Air Spray System

306472 (Page 6) President 10:1 Ratio Powerflo System

306479 (Page 7) Evenflo Automatic Pressure Control