Single hydrant gate valve

Single Hydrant Gate Valve is a specialized valve exclusively designed for fire water supply systems. Its core function is to precisely control the on/off status of fire hydrant branches, ensuring rapid water delivery during fires and isolation of water sources under normal operations. It incorporates enhanced fire resistance, reliability in emergency actuation, and long-term sealing stability—meeting the fire protection system’s stringent requirement of "zero failure at critical moments". This valve is widely used in indoor/outdoor fire hydrant pipe networks, fire pump rooms, and at the inlet/outlet of fire water tanks.

• Name：Single Hydrant Gate Valve
• Nominal Diameter (DN)：DN50 (2″) ~ DN300 (12″)
• Connection Types：Threaded (NPT 2″–12″, BSP G2″–G12″), Flanged (ANSI 150, DIN PN16/PN25)
• Body Material：Ductile Iron/Brass/Stainless Steel
• Gate Plate Material：Ductile Iron (surface welded with 316 stainless steel) or Stainless Steel (ASTM A276 304)
• Sealing Component Material：Nitrile Butadiene Rubber (NBR)/Fluoroelastomer (FKM)
• Stem Material：Stainless Steel (treatment method depends on specific model or requirements)
• Operating Torque Handwheel operation: ≤150N·m (DN200); Lever operation: ≤80N·m (DN300)
• Applicable Medium：Fire water (cold/hot), Foam concentrate (sealing elements must be matched)
• OEM Service：Accepted
• Delivery Terms：FOB, CFR, CIF, EXW
• Payment Mode：T/T, L/C, PayPal, Western Union

Product category:

gate valve

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Product Details

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Product Formation

A single hydrant valve is commonly used regulate the flow of water in fire hydrant systems, stand, or fire pumps. It is designed in a straightway pattern, allowing water to flow in a straight line when the valve is fully open.

The valve has a non-rising stem, which means that the stem does not move in a linear manner as the valve opens or closes. Instead, the stem remains stationary while the disc or gate inside the valve moves up or down to control the flow of water.

The disc of a single hydrant gate valve is typically a solid wedge-shaped piece. When the valve is fully open, the disc is lifted out of the flow path, allowing the water to pass through unrestricted. As the valve is closed, the disc is lowered, gradually reducing the flow of water until it is completely shut off when the disc comes in contact with the valve seat.

This type of valve provides a reliable and efficient method of throttling the flow in fire hydrant systems or other fire protection applications.

The hydrant gate valve is used to throttle the flow from a fire hydrant without damaging the hydrant itself.

KEY WORDS： Fire hydrant gate valve ,Single hydrant isolation valve, Hydrant branch control gate valve,Fire water system gate valve,Rising stem single hydrant gate valve , China, manufacturers, suppliers, wholesale, factory.

Other Classifed Products：

Fire Hose Categories, Fire Sprinkler System, Fire Protection Valve , Fire Hose Reel&Cabinet , Fire Foam Equipment，Fire Nozzle and Fire Monitor , Fire Hydrant , UL/FM Fire Fighting Equipment , Brass Valve Categories , Fire Extinguisher Series .

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Product Features

Exclusively designed for fire protection systems, its seat and gate use heat-resistant materials (e.g., ductile iron gate plates with stainless steel surfacing welding) to prevent high-temperature erosion or jamming, ensuring zero failure at critical moments.
The valve stem extends/retracts synchronously with the gate’s up-down movement, enabling direct observation of the valve’s "fully open/fully closed" status during operation to avoid misjudgment.
It delivers long-term sealing stability, eliminating "sticking due to rust" and leakage.
Its durable design withstands harsh environments.
Multi-specification compatibility covers all fire protection scenarios.
With a simple structure, core components (seals, gate plates) can be replaced quickly—facilitating emergency maintenance and reducing downtime costs.

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Product Parameter

Size	Pattern	Working Pressure (psi)
2 - 1/2"×2 - 1/2"	Body and bonnet,handwheel	300
2 - 1/2"×2 - 1/2"	Solid top,handwheel	175
2 - 1/2"×2 - 1/2"	Solid top,crank handle	175

Nominal Diameter (DN)	DN50 (2″) ~ DN300 (12″)
Connection Types	Threaded (NPT 2″–12″, BSP G2″–G12″), Flanged (ANSI 150, DIN PN16/PN25)
Body Material	Ductile Iron/Brass/Stainless Steel
Gate Plate Material	Ductile Iron (surface welded with 316 stainless steel) or Stainless Steel (ASTM A276 304)
Sealing Component Material	Nitrile Butadiene Rubber (NBR)/Fluoroelastomer (FKM)
Stem Material	Stainless Steel (treatment method depends on specific model or requirements)
Operating Torque	Handwheel operation: ≤150N·m (DN200); Lever operation: ≤80N·m (DN300)
Applicable Medium	Fire water (cold/hot), Foam concentrate (sealing elements must be matched)
Working Pressure (PN)	1.0 MPa – 2.5 MPa (Max. test pressure: 4.0 MPa, complies with GB/T 13927 standard)
Temperature Range	-10℃ – 80℃ (NBR seals); -20℃ – 150℃ (FKM seals)
Flow Coefficient (Kv)	Flow coefficient (Kv): Kv=10–2500 (corresponding to DN50–DN300, water medium)
Opening Time	≤5 seconds (DN100, handwheel operation)
Sealing Class	API 598 standard: Class VI (metal-to-metal seal zero leakage); Fire protection dedicated: Static leakage ≤0.01L/min
Fire Resistance Performance	After 30-minute fire resistance test (furnace temperature ≥950℃), body no deformation, seal intact (complies with NFPA 25/GB 16672)

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FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

Q: How can l get my order?
A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A; With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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We serve customers for over 15 years — so we’ve got the knowledge and industry experience to help you get it right.Professional technical support, intimate service experience We have a professional technical support team, at any time to provide you with product consultation, installation guidance and after-sales service.

At Sheng Feng Fire, our professionals are dedicated to helping you select the most suitable products based on your specific needs.

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