The Foster "new class W" pressure regulator (reducing valve), pump speed governor, pump regulator, automatic safety stop valve, damper regulator, relief valve, inside boiler check, and other high grade specialties for steam, water, gas, or air
By: Foster Engineering Co
Publisher: Foster Engineering Co.
Published: 1898
Place of publication: Newark, N.J
Language: eng
Number of pages: 64
Notes: "March, 1898".