Design Features

Application indoor & outdoor use, Fire inflow water, drain pipe, high-rising building, fire fighting system, industrial factory building fire protection system. All OS&Y Gate Valves have tamper resistant handwheel nut as well as pre-grooved stems enabling seamless tamper switch installation. All NRS Gate Valves are available with operated nut installed with vertical indicator post and wall type indicator. Conforms: ANSI/AWWA C515, Approvals: UL, CUL, FM, NSF/ANSI 61 & NSF/ANSI 372 Certified lead-free. Advantages: 1. . 2. Long service life with resilient seat cycling test at least 5000 times. 3. The bottom of Gate Valve adopt straight-through design, no foreign matter store to make sure smooth flow and reliable sealing. 4. Self-sealing design between the bonnet and body make the sealing more tight when the pressure is higher with the allowable range. 5. Multiple O-ring sealing structure to protect the stem under pressure during operation and maintenance, it causes no damage to the operator.

Industries

Building & Fire Fighting

Materials

Body: Ductile Iron, Bonnet: Ductile Iron, Disc: Ductile Iron + EPDM, Packing: Graphite, Sealing Ring: EPDM, Stem: Stainless Steel, Handwheel: Ductile Iron, Coating epoxy coated interior & exterior by Electrostatic Spray or coating upon request.

Pressure and Temperature

Max Working Pressure: 300 PSI (Maximum Testing Pressure: 600 PSI) conforms to UL 262 / ORD C262-92 & FM class 1120/1130. Maximum Working Temperature: 80°C / 176°F.

Size

2-1/2″ up to 12″

Connection

Flange x Flange, Flange x Groove, Groove x Groove, MJ x Flange, MJ x MJ