The Spence E Main Valve was designed to handle the most critical operations offers frictionless operation for longevity of installed life. Easy in-line maintenance is offered allowing balanced pressure stainless steel diaphragm to be replaced.
Available in sizes 3/8" through 8"
Two diaphragms required for valve pressure rating up to 250 PSIG
Three diaphragms required for valve pressure rating up to 400 PSIG
Four diaphragms required for valve pressure rating up to 600 PSIG
Spence E Main Steam Pressure Regulating Valve Installation, Operation & Maintenance Manual