Fire Protection Grooved Gate Valves for Reliable Pipeline Isolation
NONFIR supplies grooved gate valves for pipeline isolation in fire protection systems. The product range includes grooved-end OS&Y gate valves for fire protection contractors, distributors, and project procurement teams sourcing valves for fire protection piping projects.
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Grooved OS&Y Gate Valve for Fire Protection SystemsNONFIR Grooved OS&Y Gate Valve is a rising stem gate valve manufactured for fire protection piping systems, providing shut-off control for sprinkler and water-based fire suppression networks.read more
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Gate Valve StemGate Valve Stem is the operating shaft component installed inside an OS&Y gate valve, connecting the operating mechanism with the gate assembly to control valve opening and closing. NONFIR manufactures stainless steel gate valve stems...read more
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Industrial Gate ValveIt is used for pipeline isolation in applications such as fire sprinkler networks, fire water distribution systems, and industrial utility water lines where reliable shut-off control is required.read more
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Grooved End Gate ValveGrooved End Gate Valve is a resilient seated gate valve designed for on/off isolation in fire protection piping systems. It uses grooved end connections for installation with grooved piping systems and is commonly applied in fire...read more
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Gate Valve DimensionsNONFIR Grooved Gate Valve is an OS&Y gate valve developed for fire protection piping systems, providing grooved connection compatibility, FM/UL certified performance, and documented technical information for sprinkler system projects.read more
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Water Main Gate ValveNONFIR Water Main Gate Valve is a grooved end gate valve developed for fire protection piping systems requiring reliable water supply isolation. It is installed on fire water mains, sprinkler supply lines, and hydrant networks where...read more
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Gate Valve SizesNon-Fir grooved gate valves are designed for fire protection piping systems, including sprinkler networks, fire pump rooms, and industrial fire water pipelines. Available in 2"–12" (DN50–DN300) sizes, these valves are manufactured for...read more
Grooved Gate Valve Specifications
|
Parameter |
Specification |
|
Valve Type |
Grooved-End OS&Y Gate Valve |
|
Nominal Size |
2–12 in (DN50–DN300) |
|
Working Pressure |
300 psi (20.7 bar), depending on model |
|
Test Pressure |
1.5 × rated working pressure (typical) |
|
Connection Type |
Grooved End |
|
Connection Standard |
AWWA C606 |
|
Body Material |
Ductile Iron / Cast Iron |
|
Body Coating |
Fusion Bonded Epoxy Coating |
|
Stem Material |
Stainless Steel |
|
Gate Material |
Ductile Iron / Stainless Steel, depending on model |
|
Sealing Material |
EPDM / Resilient Rubber |
|
Operating Temperature |
0°C to 100°C, depending on model and seal material |
|
End Connection |
Grooved coupling connection |
|
Face-to-Face Dimension |
According to manufacturer dimensional drawing |
|
Operation |
Handwheel-operated OS&Y |
|
Position Indication |
Rising stem provides visual open/close indication |
|
Applicable Media |
Water-based fire protection systems |
|
Approval |
FM Approved / UL Listed models available according to configuration |
Technical Note: Specifications may vary by valve model and size. Working pressure, operating temperature, connection dimensions, materials, and applicable approvals must be verified against model-specific technical documentation.
Selection and Grooved Connection Compatibility
Pipe Size and Groove Dimensions
Match the valve's nominal size, pipe outside diameter, and groove dimensions to the piping system. Verify compatibility against the valve drawing and applicable connection requirements.
Coupling and Gasket Requirements
Confirm that the coupling and gasket are compatible with the valve connection and required working pressure. Matching nominal sizes alone does not guarantee compatibility.
OS&Y Installation Clearance
OS&Y gate valves use a rising stem to indicate valve position. Allow sufficient clearance for full stem travel, operation, inspection, and maintenance.
Operating Conditions
Select a valve according to the system's design pressure, service conditions, and project specifications. Confirm suitability for the intended fire protection application using the relevant product documentation.
Manufacturing Capabilities
Fire Protection Product Manufacturing
NONFIR manufactures fire protection products, including gate valves, automatic fire sprinklers, and related system components. The factory has more than 115 employees and operates production facilities supporting its fire protection product range.
Production Equipment and Facilities
Manufacturing resources include CNC machining, grinding equipment, assembly lines, and testing equipment. Processes and equipment applicable to grooved gate valves depend on the product model and manufacturing requirements.
Gate Valve Inspection
Gate valve inspections cover applicable requirements for operation, sealing performance, dimensions, and materials. Specific inspection procedures and acceptance criteria depend on the product model and applicable requirements.
Inspection Records and Documentation
Inspection records and test reports may be available depending on the selected model and order requirements. Buyers should confirm the required documentation before order confirmation.
Pre-Shipment Inspection
Inspection scope, product markings, packaging, and documentation requirements are reviewed during order confirmation. Additional project-specific inspection requirements should be agreed upon before production or shipment.

Certifications and Product Approvals
NONFIR references third-party approvals and Chinese standards or certifications within its fire protection product range. Approval status must be established for the exact grooved gate valve model, size, and configuration rather than inferred from other product categories.
FM Approval
FM Approval status for a grooved gate valve should be established using the applicable approval record and its stated product scope.
GB Standards and Certification
Applicable Chinese national standards and any corresponding certification requirements depend on the selected product and its intended market.
UL Listing
UL Listing status should be established using the relevant listing record, including the covered valve models, sizes, and configurations.
Supporting Documentation
Where available, model-specific approval records can be provided for project review, including the covered valve sizes and configurations.
Frequently Asked Questions
As one of the most professional grooved gate valve manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy advanced grooved gate valve at competitive price from our factory.
Gate Valve Sizes, Gate Valve Stem, grooved gate valve-
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