Spence Engineering Company We are ISO 9001 certified manufacturer of pilot and direct operated pressure and temperature regulators; pneumatically and electrically actuated control valves; safety relief valves for steam, air and industrial gas service; desuperheaters; noise suppressors; condensate pumps; steam scrubbers filters; steam separators; zero leak pipe unions and Nicholson brand thermostatic, thermodynamic, mechanical and sanitary steam traps.

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