Cast Iron Gate Valve

Durable and Reliable Solutions for Water Works & Industrial Applications

Our valves are manufactured from high-grade cast iron or ductile iron, ensuring superior strength and corrosion resistance for long service life. They are engineered to handle pressures up to 150 psi and are available as class 125 cast iron gate valve models, conforming to standard pressure-temperature ratings. Common connections include sturdy flanged end cast iron gate valve designs for secure bolting into pipeline systems. We supply a complete range of sizes, from a compact 2 inch cast iron gate valve to larger diameters for major infrastructure.

Features and Benefits

Quality is assured through adherence to international standards. Our product line includes premium AWWA C515, AWWA C509 cast iron gate valve units, built for the most severe petroleum and gas services. Furthermore, we are a trusted OEM cast iron gate valve manufacturer and an experienced cast iron gate valve exporter, with our processes backed by ISO certified cast iron gate valve production. This commitment to certification guarantees performance and interoperability.

To suit various operational needs, our valves come in multiple configurations. The non rising stem cast iron gate valve (NRS) is ideal for spaces with limited vertical clearance. For easy visual indication of the valve position, the OS&Y cast iron gate valve (Outside Stem & Yoke) design is available. For enhanced wear resistance in critical areas, select models feature bronze trim cast iron gate valve components on the seating surfaces.

Non-rising Stem Gate Valve (NRS)

Ideal for spaces with limited vertical clearance. The stem does not rise when operating, making it suitable for confined spaces.

Rising Stem Gate Valve (RS)

Provides visual indication of valve position through stem movement. Easier to lubricate and maintain.

Design: Resilient Seat vs Metal Seat

Resilient seat and Metal Seat are 2 type of seats for Cast Iron gate valve. Before the resilient seated gate valve was introduced to the market, gate valves with a metal seated wedge were widely used. The conical wedge design and angular sealing devices of a metal seated wedge require a depression in the valve bottom to ensure a tight closure. Herewith, sand and pebbles are embedded in the bore. The pipe system will never be completely free from impurities regardless of how thoroughly the pipe is flushed upon installation or repair. Thus any metal wedge will eventually lose its ability to be drop-tight.

A resilient seated gate valve has a plain valve bottom allowing free passage for sand and pebbles in the valve. If impurities pass as the valve closes, the rubber surface will close around the impurities while the valve is closed. A high-quality rubber compound is soft enough to absorb impurities, yet strong enough to wash the impurities through when the valve is opened again. This means that the rubber surface will regain its original shape securing a drop-tight sealing.

Metal Seated Gate Valve

Traditional design with metal-to-metal sealing. Requires precise machining and can trap impurities in the valve bottom.

Resilient Seated Gate Valve (RSGV)

Modern design with rubber sealing. Allows passage of impurities, self-cleaning, and maintains drop-tight seal.

Versatile Industrial Applications

The inherent strength of cast iron makes these valves exceptionally versatile:

• Industrial Cast Iron Gate Valve: The workhorse for general plant utilities, process lines, and cooling water systems.

• Water Works Cast Iron Gate Valve: Widely used in municipal water supply, distribution networks, and treatment plants.

• Marine Cast Iron Gate Valve: Specially suited for shipboard services, ballast systems, and dockyard piping.

• Sewage Cast Iron Gate Valve: Provides dependable service in wastewater and sludge handling applications due to its corrosion tolerance.

Technical Specifications & Components

A BODY: No groove design, prevents impurities, ensures effective sealing, with Epoxy coating inside, conforms to potable water requirements.

B WEDGE: Metal frame with rubber lined, ensures rubber sealing and conforms to potable water requirement.

C STEM: Made of high strength material, ensures gate valve easily controlled.

D SEAT: Brass seat ensures a reliable positive shut-off in either flowing direction, bubble-tight sealing with low operating torque.

E BONNET: Epoxy coating inside, conforms to potable water requirement. Lifting the wedge fully, the upper design allows sealing O-ring rubber online replaced.

F Sealing RING: Made of metal frame and several rubber o-rings, to prevent the stem end from leakage.

G Wearing washer: To prevent the stem from wearing, ensure the right position and reducing the operating torque.

H O-ring: Ensures stem ends from leakage.

Complete Cast Iron Gate Valve Solutions

Our cast iron gate valves are manufactured to the highest quality standards, with options for both AWWA C509 and AWWA C515 specifications. These valves are designed for long-term reliability in demanding applications, with pressure ratings up to 150 psi and available in sizes from 2 inches to 60 inches. We offer both resilient seated and metal seated designs, with configurations including rising stem (RS) and non-rising stem (NRS) variants to suit your specific installation requirements.

All our valves feature durable construction with options for epoxy coating, bronze trim, and brass seats for enhanced corrosion resistance. Whether you need valves for municipal water systems, industrial plants, marine applications, or wastewater treatment facilities, we have the expertise and manufacturing capabilities to provide reliable solutions. Our ISO-certified production processes ensure consistent quality and performance across our entire product range.

Your Trusted Partner for Supply

As a leading cast iron gate valve supplier, we offer flexible sourcing options. We provide cast iron gate valve wholesale opportunities for large-scale projects and distributors, ensuring a competitive cast iron gate valve factory price without compromising on quality. Our global logistics network supports timely delivery worldwide.

Get Your Cast Iron Gate Valve Solution Today

Ready to enhance your fluid control system with reliable cast iron gate valves? Contact our engineering team for expert advice on selecting the right valve for your application, whether you need AWWA C509, AWWA C515, resilient seated, or metal seated designs.