Flomatic manufactures air and vacuum valves for clean water and sewage applications. The valves are available in 1/2" to 3" sizes, with maximum temperature of 150F and inlet maximum pressure of 300 psi. The vacuum valves have a cast iron body and stainless steel trim, with threaded female x female connections.

Edwards Limited manufactures a number of vacuum valves, including in-line isolation, ball, manual operation isolation, pneumatic operation isolation, solenoid operation isolation, backing/roughing, soft-start, stainless steel gate, gate, butterfly, needle, electro-pneumatic control, and ISO gate vacuum valves.