DIN Soft Sealing Gate Valve – China Manufacturer & Supplier

Premium Quality DIN Soft Sealing Gate Valves from China

As a professional China DIN 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 German DIN standards. Our DIN 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, industrial pipeline, and fire protection systems.

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 by utilizing the elastic memory of EPDM rubber to maintain a perfect seal even after repeated operations. This design eliminates the common problems of leakage and rusting found in conventional gate valves while offering low operating torque and long service life.

DIN Standards & Technical Specifications

Our DIN soft sealing gate valves are manufactured in strict accordance with leading German and European standards:

• Design Standards: DIN 3352 F4 / F5

• Face-to-Face Dimensions: DIN 3202 F4 / F5, EN 558 Series 14 & 15

• Flange Standards: DIN 2533 / DIN EN 1092-2 / DIN 2501

• Test Standards: DIN 3230 / EN 12266

Key Specifications:

• Size Range: DN40 to DN1200 (NPS 1.5″ to 48″)

• Pressure Rating: PN10 (10 bar) to PN16 (16 bar); PN25 available upon request

• Temperature Range: -20°C to +80°C (standard EPDM); up to +120°C (high temperature EPDM)

• Body Material: Ductile iron GGG50 (EN-GJS-500-7)

• Wedge Material: Ductile iron with full EPDM encapsulation

• Stem Material: Stainless steel SS420

• Stem Seals: Triple EPDM O-ring design

• Coating: Fusion bonded epoxy (DIN 3476-1 / EN 14901), min. 250μm thickness

Superior Design Features

Our DIN 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 creeping corrosion underneath the rubber and guaranteeing a perfect seal.

• Full Bore Design – 100% port diameter matches the pipeline, ensuring minimal pressure drop and smooth flow characteristics. The body is designed without gate slot, so the smooth passage will not get impurities filling up—more applicable for sewage working conditions.

• Non-Rising Stem (NRS) Configuration – Ideal for space-constrained installations such as underground chambers and buried service.

• Low Operating Torque – Wedge guides on both sides and on the valve body ensure uniform closure and safe operation, preventing overloading of the stem. Plastic guide strips on the wedge ensure low operating torque even after long-term use.

• Triple O-Ring Stem Sealing – Three EPDM O-rings plus a dustproof ring provide reliable stem sealing under pressure, ensuring long-term leak-free operation. Stem seals can be replaced under pressure when the valve is fully open.

• Fusion-Bonded Epoxy Coating – Internal and external epoxy powder coating (min. 250μm) provides excellent corrosion protection, suitable for potable water applications.

Applications & Industries

DIN 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

• Industrial Pipelines – Neutral liquids, cooling water, HVAC systems

• Fire Protection Systems – Fire main isolation, sprinkler systems

• Irrigation Systems – Agricultural and landscape irrigation networks

• Petroleum, Chemical, Food, Pharmaceutical – Various industrial media

Why Choose Yuanjd Valve as Your China DIN 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 DIN soft sealing gate valve supplier, we are committed to delivering products that meet German DIN and European EN standards while offering competitive factory-direct pricing.

Our DIN soft sealing gate valves feature:

• DIN 3352 F4 / F5 compliant design

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

• Fusion-bonded epoxy coating – internal and external, min. 250μm

• ISO 9001:2015 certification – Quality management systems

• CE marking – Compliance with European market requirements

• WRAS / ACS certification available for potable water applications

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 rising stem or non-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 DIN 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.