Fire Grooved Gate Valve

1.Product Overview

Fire Grooved Gate Valve,also called grooved resilient seated gate valve for fire protection,is a dedicated shut-off valve engineered for fire sprinkler,standpipe and fire hydrant piping systems.Equipped with grooved pipe ends,it connects to steel pipes via mechanical grooved couplings instead of flanges or welding,delivering ultra-fast installation and convenient maintenance.

It falls into two mainstream structures:

OS&Y(Outside Screw&Yoke/Rising Stem Type):Visible lifting stem,real-time visual opening status inspection

NRS(Non-Rising Stem Type):Compact size for narrow pipe shafts;optional built-in supervisory tamper switch to transmit valve open/closed signals to fire control panels,complying with NFPA 13 fire safety standards

Rotating the handwheel vertically lifts or lowers the fully rubber-coated wedge gate to fully open or cut off water flow.The full-bore straight channel minimizes fluid resistance,and the EPDM integrated wedge realizes zero-leak soft sealing under rated working pressure.All surfaces are coated with thick anti-corrosion epoxy red paint for long-term service in fire water pipelines.

2.Core Features

Fast Grooved Connection

No welding,no flange drilling,no complex alignment.Assemble with standard grooved couplings and gaskets;greatly cuts construction labor and project cycle,ideal for new construction and pipeline retrofits.The coupling joint allows slight displacement to absorb pipe thermal expansion and vibration.

Zero-Leak Resilient Sealing

Ductile iron wedge fully wrapped with high-elastic EPDM rubber.The rubber deforms tightly against the valve seat to achieve bubble-tight shutoff,no dripping even after years of standby in fire systems.

Full-Bore Low Flow Resistance

Inner channel matches pipe inner diameter,no flow obstruction,stable water supply during fire emergency.

Dual Structure Options

OS&Y rising stem:Directly judge valve opening degree by exposed stem height,easy on-site inspection.

NRS non-rising stem:Space-saving for ceiling,underground and compact pipe rooms;optional signal switch for remote monitoring.

Strong Anti-Corrosion&Durability

Valve body:Ductile iron GGG50 with 300μm epoxy powder coating,anti-rust and anti-scale.

Stem:Stainless steel SS420/304,wear-resistant and anti-oxidation.

Applicable temperature:-10℃~+80℃,suitable for cold fire water.

Safety Compliance&Customization

Meet international standards EN1074,EN1171,AWWA C606;support UL/FM certification.OEM&ODM available,optional electric/pneumatic actuators for automatic control.

3.Main Technical Specifications

Nominal Sizes:DN50~DN300(2"~12")

Working Pressure:PN10/PN16(1.0MPa/1.6MPa)

Shell Test Pressure:2.4MPa;Seat Sealing Test Pressure:1.76MPa

Connection Type:Grooved end(Victaulic standard groove)

Operation:Manual cast iron handwheel;optional electric actuator

Medium:Clean fire water,foam mixed liquid

Surface Coating:Red epoxy fusion bonded coating

Certification:ISO9001,CE,UL/FM optional

1. Product Overview

Fire Grooved Gate Valve, also called grooved resilient seated gate valve for fire protection, is a dedicated shut-off valve engineered for fire sprinkler, standpipe and fire hydrant piping systems. Equipped with grooved pipe ends, it connects to steel pipes via mechanical grooved couplings instead of flanges or welding, delivering ultra-fast installation and convenient maintenance.

It falls into two mainstream structures:

OS&Y (Outside Screw & Yoke / Rising Stem Type): Visible lifting stem, real-time visual opening status inspection

NRS (Non-Rising Stem Type): Compact size for narrow pipe shafts; optional built-in supervisory tamper switch to transmit valve open/closed signals to fire control panels, complying with NFPA 13 fire safety standards

Rotating the handwheel vertically lifts or lowers the fully rubber-coated wedge gate to fully open or cut off water flow. The full-bore straight channel minimizes fluid resistance, and the EPDM integrated wedge realizes zero-leak soft sealing under rated working pressure. All surfaces are coated with thick anti-corrosion epoxy red paint for long-term service in fire water pipelines.

2. Core Features

Fast Grooved Connection

No welding, no flange drilling, no complex alignment. Assemble with standard grooved couplings and gaskets; greatly cuts construction labor and project cycle, ideal for new construction and pipeline retrofits. The coupling joint allows slight displacement to absorb pipe thermal expansion and vibration.

Zero-Leak Resilient Sealing

Ductile iron wedge fully wrapped with high-elastic EPDM rubber. The rubber deforms tightly against the valve seat to achieve bubble-tight shutoff, no dripping even after years of standby in fire systems.

Full-Bore Low Flow Resistance

Inner channel matches pipe inner diameter, no flow obstruction, stable water supply during fire emergency.

Dual Structure Options

OS&Y rising stem: Directly judge valve opening degree by exposed stem height, easy on-site inspection.

NRS non-rising stem: Space-saving for ceiling, underground and compact pipe rooms; optional signal switch for remote monitoring.

Strong Anti-Corrosion & Durability

Valve body: Ductile iron GGG50 with 300μm epoxy powder coating, anti-rust and anti-scale.

Stem: Stainless steel SS420/304, wear-resistant and anti-oxidation.

Applicable temperature: -10℃ ~ +80℃, suitable for cold fire water.

Safety Compliance & Customization

Meet international standards EN1074, EN1171, AWWA C606; support UL/FM certification. OEM & ODM available, optional electric/pneumatic actuators for automatic control.

3. Main Technical Specifications

Nominal Sizes: DN50 ~ DN300 (2" ~ 12")

Working Pressure: PN10 / PN16 (1.0MPa / 1.6MPa)

Shell Test Pressure: 2.4MPa; Seat Sealing Test Pressure: 1.76MPa

Connection Type: Grooved end (Victaulic standard groove)

Operation: Manual cast iron handwheel; optional electric actuator

Medium: Clean fire water, foam mixed liquid

Surface Coating: Red epoxy fusion bonded coating

Certification: ISO9001, CE, UL/FM optional