ANSI Soft Sealing Gate Valve – China Manufacturer & Supplier

Premium Quality ANSI Soft Sealing Gate Valves from China

As a professional China ANSI soft sealing gate valve manufacturer, Yuanjd Valve specializes in the design, production, and supply of high-performance resilient seated gate valves that fully comply with American National Standards. Our ANSI soft sealing gate valves—also known as resilient seated gate valves or rubber sealed gate valves—are engineered to provide bubble-tight zero leakage isolation in water supply, wastewater treatment, HVAC systems, and industrial pipeline applications.

A soft sealing gate valve employs a rubber-encapsulated wedge that forms a resilient seal against the valve body when closed. Unlike traditional metal-seated gate valves, soft sealing gate valves achieve zero leakage (Class A) by utilizing the elastic memory of EPDM rubber to maintain a perfect seal even after repeated operations. The valve utilizes an overall rubber-coated gate for deformation compensation, achieving excellent sealing performance and overcoming issues like poor sealing, leakage, and rust common in traditional gate valves.

ANSI Standards & Technical Specifications

Our ANSI soft sealing gate valves are manufactured in strict accordance with leading American standards:

• Design Standards: ANSI/AWWA C509 (iron-body resilient-seated gate valves), AWWA C515 (reduced-wall resilient-seated gate valves)

• Face-to-Face Dimensions: ANSI B16.10

• Flange Standards: ANSI B16.1 (Class 125/150)

• Testing Standards: API 598 / EN 12266

Key Specifications:

• Size Range: NPS 2″ to 32″ (DN50 to DN800)

• Pressure Rating: Class 125 / Class 150 (PN10/PN16)

• Temperature Range: 33–125°F (0.6–52°C) standard; up to -20°C to 120°C with special materials

• Body Material: Ductile iron (GGG40/GGG50)

• Wedge Material: Ductile iron with full EPDM encapsulation

• Stem Material: Stainless steel (2Cr13 / 1.4057)

• Stem Seals: Triple EPDM O-ring design

• Coating: Fusion bonded epoxy resin (non-toxic, WRAS/NSF certified)

Superior Design Features

Our ANSI soft sealing gate valves incorporate several advanced design features that deliver superior performance and reliability:

• EPDM Encapsulated Wedge – The ductile iron core is fully vulcanized with EPDM rubber, ensuring that no iron parts are exposed to the medium, preventing corrosion and guaranteeing a perfect seal.

• Full Bore Design with Flat Bottom Seat – The valve body features a smooth, unobstructed passage without gate groove, preventing debris accumulation and ensuring minimal flow resistance. All valves are smooth, free of pockets and cavities, allowing minimal flow loss and lower pumping costs.

• Non-Rising Stem (NRS) Configuration – Ideal for space-constrained installations such as underground chambers and buried service. Rising stem (OS&Y) options also available.

• Low Operating Torque – Plastic sliding guides on the wedge guarantee low operating torque even after many years of use.

• Triple O-Ring Stem Sealing – Three EPDM O-rings provide reliable stem sealing; the upper two O-rings can be replaced without stopping the water flow.

• Fusion-Bonded Epoxy Coating – Internal and external non-toxic epoxy resin coating provides excellent corrosion protection, with WRAS and NSF certification available for potable water applications.

• Lightweight Construction – Ductile iron construction reduces weight by 20-30%, facilitating maintenance and installation.

Applications & Industries

ANSI soft sealing gate valves are indispensable across multiple sectors:

• Water Supply & Distribution – Potable water networks, pumping stations, distribution mains

• Wastewater & Sewage – Treatment plants, force mains, sewer systems

• HVAC Systems – Heating and cooling water systems

• Fire Protection Systems – Fire main isolation, sprinkler systems

• Industrial Pipelines – Water, steam, oil, and neutral liquids

• Power Plants – Cooling water systems

Why Choose Yuanjd Valve as Your China ANSI Soft Sealing Gate Valve Manufacturer?

At Yuanjd Valve, we combine decades of manufacturing expertise with advanced production facilities and rigorous quality control systems. As a leading China ANSI soft sealing gate valve supplier, we are committed to delivering products that meet American ANSI/AWWA quality standards while offering competitive factory-direct pricing.

ANSI standards govern U.S.-based engineering specifications, ensuring compatibility and quality across various domains. ANSI gate valves are extensively used in water treatment, HVAC, and infrastructure projects. China remains the world’s leading manufacturer of resilient seated gate valves, with specialized manufacturing clusters offering unrivaled advantages in cost, scale, and technological advancement. Yuanjd Valve leverages this ecosystem to provide our global clients with high-quality ANSI soft sealing gate valves at competitive prices—typically 15–30% lower than North American equivalents—backed by reliable delivery and responsive after-sales support.

Our ANSI soft sealing gate valves feature:

• ANSI/AWWA C509 / C515 compliant design

• Full EPDM encapsulated wedge – zero leakage, bubble-tight sealing

• Fusion-bonded epoxy coating – internal and external, WRAS/NSF certified

• ISO 9001:2015 certification – Quality management systems

• CE marking – Compliance with European market requirements

OEM & Customization Services

We offer comprehensive OEM and customization services, allowing you to specify materials, sizes, pressure ratings, end connections, and certifications that precisely match your industrial requirements. Whether you need non-rising stem or rising stem configurations, handwheel or gearbox operation, or specialized coatings for corrosive environments—our engineering team can deliver tailored solutions for your specific project needs.

Contact Us

Partner with a reliable ANSI soft sealing gate valve manufacturer in China. Contact Yuanjd Valve today for product inquiries, technical support, or to request a quote. Our experienced team is ready to assist you with professional guidance and prompt service.