300PSI Resilient Wedge NRS Gate Valve - Flanged End

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Gate Valve

Compliance Credentials: Strictly certified to UL 260 and FM standards for high-hazard critical infrastructure

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300PSI Resilient Wedge NRS Gate Valve - Flanged End

▏Product Description

The 300 PSI Resilient Wedge NRS Gate Valve (Flanged End) is specifically engineered for critical fire protection frameworks and high-reliability water systems, including fire inflow networks, municipal water supply, high-rise building firefighting setups, and industrial sprinkler pipelines. Featuring a straight-through bottom flow path design, this non-rising stem (NRS) gate valve eliminates bottom cavity traps to prevent debris accumulation, ensuring zero obstruction and a reliable, drop-tight seal over long-term standby.

Key Commercial & Engineering Advantages

Global Fire & Clean Water Approvals: Fully certified with FM, UL, and cUL fire safety listings. It also carries NSF/ANSI 61 & NSF/ANSI 372 lead-free compliance, making it fully certified and available for dual-purpose fire protection and potable water applications.
300 PSI Rated Working Pressure: Built to meet strict ANSI/AWWA C515 design standards and ASME B16.10 face-to-face dimensions. It supports a stable 300 PSI maximum working pressure (tested up to a 600 PSI maximum testing pressure) to ensure maximum safety margins conformant with FM 1120/1130, UL 262, and ULC/ORD C262-92.
Premium Material & Anti-Corrosion Construction: * Pressure-Retaining Castings: The Body, Bonnet, Gland, Wrench Nut, and Post Flange are all constructed from high-strength Ductile Iron, coated with high-grade Epoxy (or other coatings upon request).
Resilient Sealing & Core: Features a Ductile Iron + EPDM vulcanized Disc (Wedge) paired with durable EPDM Sealing Rings and O-rings for optimal sealing performance.
High-End Internal Components: Equipped with a Stainless Steel 304 (or Steel 1045) Stem and Plug, a C95400 Bronze Retaining Ring, and a CF8 or C95400 Stem Nut to eliminate corrosion binding and ensure smooth operation.
Universal Multi-Flange Piping Matching: Available in a comprehensive size range from 2" up to 24" (with 2" to 12" being FM/UL approved). The flange design seamlessly integrates with global piping networks, conforming to ASME/ANSI B16.1 Class 125, ASME/ANSI B16.42 Class 150, BS EN 1092-2 PN16, and GB/T9113.1 standards within a 0~80°C (32~176°F) working temperature range.
Indicator Post & Field Ready: Outfitted with an NPT plug on the body with 2 operating nuts. The valve is available with or without a dedicated Post Flange, allowing immediate, seamless matching with standard vertical indicator posts or wall indicators to monitor valve status.

▏Technical Features

Parameter Item	Parameter
Standard	ANSI/AWWA C515, ASME B16.10, ASME/ANSI B16.1 Class 125, ASME/ANSI B16.42 Class 150, BS EN 1092-2 PN 16, GB / T9113.1
Valve Type	Non-Rising Stem (NRS) Resilient Wedge Gate Valve
Connection	Flanged End
Certifications	FM, UL, CUL, NSF / ANSI 61 & NSF / ANSI 372
Max Temperature	80°C / 176°F
Coating	Epoxy or Coating upon request
Application Media	Fire Protection Water / Potable Water
Sizes	2"(FM) 2.5", 3", 4", 5", 6", 8", 10", 12" (FM UL) 14", 16", 18", 20", 24"
Maximum Working Pressure	300PSI
Maximum Testing Pressure	600PSI
Pressure Conformance	FM 1120 / 1130, UL 262, ULC / ORD C262-92
Body Features	NPT plug on body with 2 operating nuts
Post Flange Availability	With and Without Post Flange are available

▏Valve Material List

NO.	Name	Material
1	Flat Washer	Steel 1045 or Stainless Steel 304
2	Hexagon Socket Screw	Steel 1045 or Stainless Steel 304
3	Sealing Ring	EPDM
4	O-ring	EPDM
5	Sealing Ring	EPDM
6	O-ring	EPDM
7	Bonnet	Ductile Iron
8	Stem	Stainless Steel 304 or Steel 1045
9	Plug	Stainless Steel 304 or Steel 1045
10	Disc	Ductile Iron +EPDM
11	Body	Ductile Iron
12	Sealing Ring	EPDM
13	Retaining Ring	C95400
14	Gland	Ductile Iron
15	Post Flange	Ductile Iron
16	Wrench Nut	Ductile Iron
17	Bolt	Stainless Steel 304 or Steel 1045
18	Washer	Stainless Steel 304 or Steel 1045
19	Hexagon Socket Screw	Steel 1045 or Stainless Steel 304
20	Stem Nut	CF8 or C95400

▏Dimensions

Size (Inch)	DN (mm)	L (mm)	D (mm)	H (mm)
2"	50	178	152	265
2½"	65	190	178	292
3"	80	203	191	322
4"	100	229	229	342
5"	125	254	254	412
6"	150	267	279	448
8"	200	292	343	534
10"	250	330	406	635
12"	300	356	483	720

📌Which global fire protection certifications does this ANSI AWWA C515 gate valve meet?

A： This premium fire suppression valve is fully compliant with strict ANSI/AWWA C515 and ASME B16.10 manufacturing criteria. To satisfy rigorous international municipal and commercial project tenders, it is officially certified with FM Approved, UL Listed, cUL Listed, VdS, and CCC global fire safety compliance. Additionally, it features certified lead-free properties under NSF/ANSI 61 & NSF/ANSI 372, making it fully qualified for dual-purpose drinking water and fire pipeline setups.

📌What are the maximum pressure limits and factory testing standards for this flanged gate valve?

A： This heavy-duty 300PSI Resilient Wedge NRS Gate Valve - Flanged End supports a reliable 300 PSI rated working pressure for high-pressure infrastructure stability, conforming seamlessly to FM 1120 / 1130 and UL 262 pressure mandates. To ensure absolute field blowout safety, each structural body undergoes shell and seat hydrostatic factory pressure validation up to a maximum testing pressure of 600 PSI.

📌What high-grade materials are used to ensure the valve's mechanical durability and corrosion resistance?

A： The valve shell, bonnet, gland, and wrench nut are cast from high-strength Ductile Iron, which provides exceptional strength-to-weight ratios compared to ordinary cast iron. The stem is machined from premium corrosion-resistant Stainless Steel 304. For robust bubble-tight shutoff, it features an EPDM vulcanized wedge that has successfully completed an endurance-verified 5,000-cycle resilient seat cycling test. Crucial components like the stem nut and body plug are cast from high-grade C95400 aluminum bronze to eliminate corrosive binding.

📌 Is this non-rising stem (NRS) gate valve compatible with vertical indicator posts?

A： Yes, this specialized UL FM listed NRS gate valve is engineered with a standard integrated post flange and 2 operating nuts. This design allows immediate, seamless mechanical matching with industrial vertical indicator posts and wall-type indicators, providing clear visual position monitoring for deep underground or wall-isolated fire main control installations.

📌How does the internal flow path design protect the piping network from pressure drops and clogging?

A： Our ductile iron resilient wedge gate valve utilizes a straight-through bottom flow path design that completely eliminates sediment traps or foreign matter accumulation. This guarantees low pressure drop fluid flow and durable, drop-tight sealing. Furthermore, its advanced self-sealing design between the bonnet and body utilizes internal system line pressure to actively tighten the internal sealing joint as water pressure increases, providing an extra safety margin within the 0~80°C (32~176°F) working temperature range.

📦 APC Valve Business Support: Available in sizes 2" to 24". For specific bulk lead times, custom epoxy coating requirements, or regional shipping schedules to your port, please contact our export department directly for a guaranteed 24-hour quotation.

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