Original oil and gas vintage magazine ad for MISSION MANUFACTURING COMPANY. Valve that thinks for itself. Oilfield industry equipment including pistons, liners, swabs. The higher the pressure, the more tightly the valve seals. Pressures force sealant through two semi-circular grooves around the downstream port, forming a gas-tight seal. Leaks are stopped before they can start. Main office was located in Houston, TX. This 1959 unique old one page petroleum drilling and pumping industry equipment trade advertisement would display beautifully matted and framed.
- SKU ze127
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