CRISPIN Valve : Established 1902

Originators of the Air Relief Valve

ROSS Valve : Established 1879

Originators of the Self-Piloted Control Valve 

CRISPIN K-FLO : Established 1979

Offers two AWWA Designs

TTR Group Inc. : Established 2009

Over 30 years of Valve Design and Field Service Experience

ROMAC Industries : Established 1990