Bolted bonnet allows easy inspection and servicing without removal from system.

Quality cast iron body and bonnet.

Insert and disc available in bronze or stainless steel and lapped for tight shut-off.

Springs are steel with plating for corrosion protection.

High lift, wing-guided disc offers high relieving capacity.

Pivot between disc and spring corrects misalignment and compensates for spring side thrust.

ANSI B16.1 rated 250# inlet and 125# outlet flanged connections as standard.

Optional epoxy-coated internal body and bonnet for corrosive environments (to 125°F (52°C)).