Product Overview

This PN16 resilient-seated ductile iron gate valve is a high-performance, bi-directional shut-off valve designed for reliable on/off control in systems handling water, air, gas, oil, and industrial fluids. Featuring an EPDM-encapsulated wedge, it ensures a bubble-tight seal and offers exceptional durability and ease of maintenance in demanding environments, making it an ideal choice for municipal water supply, wastewater treatment, HVAC, and industrial process piping.

Flanged Ductile Iron Gate Valve

Technical Specifications

Flanged Ductile Iron Gate Valve

Key Features

1. Resilient Wedge / Soft-Seal Design – Zero Leakage
2. Ductile Iron Body – Superior Strength & Impact Resistance
3. Flanged Connection – EN 1092-2 PN16 / DIN PN16
4. Fusion-Bonded Epoxy Coating – Superior Corrosion Protection
5. NRS Design – Non-Rising Stem for Space-Constrained Installations
6. Wide Size Range – DN50 to DN600
7. OEM / ODM Customization Support
8. CE & ISO 9001 Certified – Quality Assured

Applications

1. Municipal Water Supply Systems
2. Wastewater Treatment Plants
3. HVAC Systems
4. Industrial Process Lines
5. Fire Protection Systems

Flanged Ductile Iron Gate Valve

Packing and Shipment

Packing depends on the product type and quantity. Options include carton boxes or wooden crates with proper protection for flange faces. Shipment can be arranged by sea, railway, air, or as per customer’s request.

Company Profile

LUOYANG DATANG ENERGY TECH CO., LTD is a professional industrial valve supplier, dedicated to providing reliable flow control solutions for fire protection, HVAC, water treatment, and industrial piping systems worldwide. All products are manufactured to international standards with UL/FM, CE, and ISO 9001 certifications. With over 10 years of experience, a modern facility of 80,000 m², and 200+ professional employees, we serve customers in 10+ countries with quality products, competitive pricing, and reliable delivery.

Payment Terms

T/T, L/C at sight, Western Union, PayPal, Apple Pay, Google Pay, Credit Card, etc.

Flanged Ductile Iron Gate Valve

FAQ

Q1: What is the difference between a resilient-seated gate valve and a metal-seated gate valve?

A: Resilient-seated gate valves feature a wedge fully encapsulated in EPDM rubber, providing zero-leakage sealing (bubble-tight); they are suitable for water, sewage, and mild chemicals. Metal-seated gate valves (metal-to-metal contact) are designed for high temperatures (>150°C) and abrasive media but have a higher leakage rate (Class IV). For most water supply and HVAC applications, resilient-seated gate valves are the most cost-effective choice.

Q2: What is the difference between Non-Rising Stem (NRS) and Outside Screw & Yoke (OS&Y) gate valves?

A: NRS gate valves do not have a rising stem during operation, making them suitable for underground installations and valve pits where overhead clearance is limited. OS&Y gate valves feature a rising stem that provides a visual indication of the valve’s position, making them ideal for applications requiring visual confirmation of the open/closed status.

Q3: What are the maximum working pressure and temperature ratings for this gate valve?

A: The standard configuration is rated for PN16 (1.6 MPa / 16 bar) with a temperature range of -10°C to +80°C. Optional configurations can extend the temperature range to -20°C to +120°C. Please contact our sales team for higher temperature or pressure requirements.

Q4: Can the valve body material be upgraded to stainless steel?

A: Yes. We offer stainless steel (SS304/SS316) body upgrades suitable for corrosive media, food-grade, or high-purity applications. Please specify your requirements when placing an order.

Flanged Ductile Iron Gate Valve