Fittings are supplied with grooved or shouldered ends to permit fast installation without field preparation. Fittings conform to the pressure ratings of Style 77 flexible couplings. Not intended for use with Victaulic couplings for plain end pipe.
No. 10-DR drain elbows are specifically designed for use on fire protection standpipes. The drain is drilled and tapped for a 1" (25 mm) NPT outlet.
Constructed of durable ductile iron all sizes conform to the ratings of Style 77 couplings. No.10-DR elbows are supplied with grooves or shoulders. These fittings are not intended for use with Victaulic Plain End couplings.
When connecting wafer or lug-type butterfly valves directly to Victaulic drain elbows with Style 741 or 743 Vic-Flange® adapters or Style 744 FireLock® Flange adapters, check disc clearance dimensions with the I.D. dimension of the fitting.