Electrically and pneumatically, pilot controlled, double-interlock pre-action valve, actuated by the pipeline pressure. The valve is closed in its normal, set position and opens when the pressure drops in a gas pressurized supervisory pilot line, sensed by the relay valve, and the solenoid valve is energized. An emergency manual release valve is fitted as standard. Also available with manual reset: DE\EL\PORV-DN-MR.
Size Unit
Size range
Fire Protection certifications
UL Listed
DN50-250 / 2”-10”
Pressure rating
Working temperature
End connection type
Flanged
ISO-PN16 & ISO-PN25
ASME/ANSI B16.42 & B16.5 Class 150# & 300#
Grooved
ASME/ANSI AWWA 606
Sizes: 2″-8″
Materials of construction
Body and Cover
Ductile Iron ASTM A536 (standard)
Stainless Steel ASTM CF8M
Cast Steel ASTM A216 & A352 LCB
NAB ASTM B148 C-958000
Internal Parts
Stainless Steel
Diaphragm
Neoprene (standard)
NR
NBR
EPDM
Control Trim & Accessories
Brass / Bronze / Copper (standard)
Stainless Steel
Super Duplex
Monel
NAB
* Other optional materials available upon request
OCV 68 DE\EL\PORV-DN Pre-Action
