WE – saeesolution

Features

Body Material: Ductile Iron.
Nominal Pressure 250 psi., Test Pressure: 500 psi.
O-ring sealed flanges at the bonnet ground line and shoe simplify maintenance by eliminating gasket adhesion at these points, making disassembly easier. The O-rings are easier than flat gaskets to position during reassembly, and provide superior pressure handling.
Hold-down nut - features integral weather seal. Prevents unauthorized removal of hold-down nut or operating nut. Resilient wiper seal prevents water entry and protects from freezing; material resistant to sunlight deterioration. O-ring provides second level seal.
Safety flange - breaks cleanly to help prevent barrel damage, but strong enough to withstand normal handling. Allows economical repair, adding of extension section, rotation or changing of upper barrel without excavation.
Full flow openings - large, smooth radius hose and pumper openings reduce friction loss.

Model No.	NDR 098	NDR 097	NWR
Valve Type	Oblique, Flanged Inlet	Oblique, Threaded Inlet	Oblique, Pressure Reducing, Flanged Inlet
Pressure Rating	Low Pressure Valve	Do	High Pressure Valve
Nominal Size	DN50	DN 21/2"	DN50
Working Pressure	15 Bar Maximum	Do	20 Bar Maximum
Test Pressure	Valve Seat Test at 16.5 Bar • Body Test at 22.5 Bar	Do	Valve Seat Test at 22 Bar • Body Test at 30 Bar
Flange Drilling	BS 4504 Part 2:1974 Table:16/21		BS4504 Part: 2 :1974Table : 16/2
Water Flow Rate	8.5 L/S @ 4 Bar Outlet Pressure	Do	8.5 L/S @ 4 Bar Outlet Pressure
Min. Valve Pressure Regulating			4-12 Bar