Flanged Rising Stem Gate Valve with EPDM Seat & Gearbox Operator

Designed for full-bore flow with minimal pressure drop, it features a **Ductile Iron wedge** and a resilient **EPDM seat** for a secure, bubble-tight seal. The clear **rising stem design** provides visual indication of the valve's open/closed status, enhancing operational safety. Available in sizes from **DN50 to DN600**, this valve is built for long-term, maintenance-free service in demanding pipeline systems.

Flanged Rising Stem Gate Valve with EPDM Seat & Gearbox Operator | DN50-DN600

Tianjin Worlds Valve Co., Ltd. – ISO 9001, CE, UKCA & WRAS Certified Manufacturer

RGV02-TF010203-Operation and Maintenance Manual DOWNLOAD

Key Features & Advantages:

1. Manual Gearbox Operation for Effortless High-Torque Control

Engineered for easy operation, even in larger sizes or under high differential pressure.

• High Mechanical Advantage: The multi-stage **worm gear operator (turbine head)** provides significant torque multiplication, making the opening and closing of the valve smooth and manageable with minimal operator effort, eliminating the need for large handwheels.

• Durable & Reliable Gearing: The enclosed gearbox protects internal components from environmental contaminants, ensuring long-term reliability and consistent performance.

• Safe and Efficient: The gear mechanism allows for controlled, steady operation, reducing the risk of water hammer and protecting valve internals from abrupt stress.

2. Resilient EPDM Seat for Bubble-Tight Sealing & Long Life

Ensures dependable, zero-leakage shut-off across a wide range of services.

• Superior Elastic Seal: The **Ethylene Propylene Diene Monomer (EPDM)** seat provides excellent elastic recovery, creating a reliable, bubble-tight seal against the metal wedge, even after numerous cycles.

• Excellent Media Compatibility: EPDM offers outstanding resistance to water, weathering, and a broad range of chemicals, making it ideal for potable water, wastewater, and various industrial fluids within its temperature range.

• Reduced Wear & Maintenance: The resilient seat acts as a cushion, reducing wear on both the seat and the wedge, which extends service intervals and lowers the total cost of ownership.

3. Clear Rising Stem Design for Immediate Visual Indication

Provides unambiguous valve position feedback for enhanced system safety and management.

• Instant Status Verification: The **rising stem (OS&Y)** design offers a clear, at-a-glance visual confirmation of the valve position—stem raised indicates open, stem lowered indicates closed—crucial for safety in complex piping systems.

• Packaging Protection: The stem threads are located outside the valve body and flow path, protecting them from corrosive or abrasive media and ensuring smooth operation over the valve's lifetime.

• Easy Maintenance: The external stem design simplifies lubrication and inspection, facilitating easier preventative maintenance.

4. Robust Full-Bore Design for Minimal Flow Restriction

Built for efficient flow with maximum durability.

• Unobstructed Flow Path: The valve provides a **full port (full bore)** design when fully open, allowing pigging and minimizing pressure drop, which translates to energy savings in pumping systems.

• Durable Material Construction: The **Ductile Iron (GGG40) body and wedge** provide high strength, excellent impact resistance, and good corrosion resistance, suitable for a wide array of industrial environments.

• Flanged End Connections: The integral **flanged ends** (e.g., EN1092, AS2129, ANSI B16.1) ensure a strong, rigid, and leak-proof connection to the pipeline, ideal for permanent installations.

Materials:

Parameter	Materials
Model	RGV02-TF01
Body	Ductile Iron
Wedge	Ductile Iron / EPDM
Stem	Stainless Steel
WASHER	TFL
O-ring	EPDM
YOKE	Ductile Iron
Bonnet	Ductile Iron
Wheel	Brass

Why Choose Tianjin Worlds Valve?  

1. Expertise in Iron Casting & Precision Machining: We specialize in manufacturing high-integrity ductile iron valves, with strict control over casting quality and precise machining of gearbox components and sealing surfaces.

2. Certified Quality & Global Compliance: As an **ISO 9001 certified** manufacturer, our processes ensure consistent quality. Valves can be supplied to meet **WRAS, ACS, UKCA, CE** and other international standards for global market access.

3. OEM/ODM Capabilities for Custom Solutions: We provide extensive customization. Options include different seal materials (NBR, Viton), wedge coatings (epoxy, nylon), alternative pressure classes, and customized gearbox ratios or flange standards.

4. Proven Reliability in Export Markets: Our valves are trusted in projects across dozens of countries. We provide expert technical support, comprehensive documentation, and reliable logistics to ensure your project's success.

Typical Applications

• Municipal Water Treatment & Distribution Networks

• Industrial Plant Water & Process Lines

• Fire Protection Systems (where permitted by code)

• Irrigation and Water Supply Pipelines

• General Shut-Off Service in HVAC and Building Services

 

Conclusion:

For technical data sheets, pressure test certificates, or a customized quotation, contact Tianjin Worlds Valve Co., Ltd. today.