Flexible Wedge Gate Valve Double Disc Parallel Seat Cast Carbon Steel

Product Description

Introduction
The National Standard Cast Steel Gate Valve is manufactured using cast steel materials, making it suitable for use in various industrial pipeline systems, particularly for fluid flow control in on/off applications. With excellent sealing performance, corrosion resistance, and oxidation resistance, it is widely used in industries such as petroleum, chemical, power, metallurgy, food, and pharmaceuticals.



 

National Standard Cast Steel Gate Valve Product Details

Product Name: National Standard Cast Steel Gate Valve
Model: Z41H, Z45H, Z15H, etc.
Material: Cast Steel (WCB, ZG1Cr18Ni9Ti, ZG1Cr5Mo, ZGCr5, etc.)
Nominal Size: DN50 - DN1200
Pressure Rating: PN16, PN25, PN40, PN64, PN100
Working Temperature: -29°C to +425°C
Standards: Complies with GB, ANSI, DIN, and other relevant international standards
 

 

Key Features

1. Durable and Robust: Made from high-strength cast steel, the valve offers excellent compression and corrosion resistance, ensuring long-term stability and reliability.
2. Precise Sealing: The inner and outer sealing surfaces are precisely machined and treated to ensure reliable sealing performance and prevent leakage.
3. Excellent High-Temperature Resistance: The valve can withstand high temperatures, with a working temperature range up to 425°C, making it suitable for complex industrial environments.
4. Efficient Fluid Control: The full-bore design reduces flow resistance, resulting in minimal pressure loss and improved fluid flow control.
5. Easy Installation and Maintenance: The simple structure makes it easy to install and maintain, reducing downtime and maintenance costs.
6. High Reliability: Various corrosion-resistant measures extend the valve's lifespan and reduce failure rates.

Technical Parameters

Item	Parameter
Nominal Pressure	PN16, PN25, PN40, PN64, PN100
Temperature Range	-29°C to +425°C
Sealing Type	Gasket Sealing, Hard Sealing, Soft Sealing
Connection Type	Flanged, Threaded, Welded
Fluid Media	Water, Oil, Gas, Steam, and various chemicals
Applicable Industries	Power, Oil & Gas, Chemical, Metallurgy, Food, Pharmaceutical, etc.

Structural Features

1. Valve Body: Made of cast steel, offering high strength and durability for use in harsh working conditions.
2. Gate: Manufactured from cast steel or stainless steel, precision-machined to ensure excellent sealing performance.
3. Stem: Made of high-quality stainless steel, surface-hardened for enhanced corrosion resistance.
4. Actuators: Can be configured with manual, pneumatic, or electric actuators for remote control or automatic operation, depending on customer needs.
5. Sealing Surface: Designed with hard or soft sealing to suit different working environments, providing superior sealing performance.

Applications

• Petrochemical Industry: Used in pipelines for the transportation of petroleum, natural gas, and various chemicals to control the flow of media.
• Power Industry: Widely used in power plants, including in boilers, heat exchangers, and cooling systems, to control the flow of steam and cooling water.
• Metallurgy: Applied in metallurgical systems for controlling fluid flow in various processes.
• Water Treatment Systems: Used in drinking water, wastewater, and industrial water treatment systems for flow regulation.
• Food & Pharmaceutical Industries: Commonly used in food processing and pharmaceutical production where hygiene and precise flow control are essential.

Installation and Maintenance

• Installation Position: It is recommended to install the valve in horizontal pipelines. The installation position should comply with the design specifications of the pipeline system.
• Regular Inspection: Periodic checks should be performed to assess the sealing condition, stem, and gate wear, and lubrication should be applied when necessary.
• Cleaning and Maintenance: Keep the valve clean to prevent dust and debris from entering the sealing areas. Regular internal and external cleaning is recommended.

Selection Guide

To ensure we provide the most suitable cast steel gate valve for your application, please specify the following parameters:

• Nominal size: DN50 - DN1200
• Pressure rating: PN16, PN25, PN40, etc.
• Type of medium: Water, oil, gas, or other special media
• Actuation type: Manual, pneumatic, electric, etc.

Quality Assurance

This product is manufactured in strict accordance with national and international standards, with all products undergoing rigorous quality control before leaving the factory. We offer long-term technical support and after-sales services to ensure the best performance and reliability for our customers.



For any inquiries or to request further information, please feel free to contact our sales team. We are committed to providing professional product consultation and service to meet your needs.


 

Application

 

We come from Wenzhou City, known as the hometown of valves. Choose us to make business easier. Our factory and trading are united, providing more categories for your selection and facilitating your purchase.
Мы приехали из города вэньчжоу, известного как родной город клапанов. Выберите нас, чтобы сделать бизнес проще. Наша фабрика и торговля объединены, предоставляя больше категорий для вашего выбора и облегчения покупки.

Our Product iswidely used in following industrials
Наш продукт активно применяется в промышленности











 

Petroleum	Нефть и газ
Chemical Industry	Химическая промышленность
Natural Gas	Природный газ
Power	Электричество
Architectural Engineering	Архитектурное
New Energy	Новые источники энергии
Heating	Для обогрева помещений
Hot oil,Steam	Горячее масло, пар

 

o

Company Strength

Business Meeting

 

Overseas Exhibition

 

Production of Manufacturer

 

Why Choose us

Secutity Deposit Return Guarantee

Order Size	Discount for Customers	Prpayrit quired	Cash Required
USD5000-20000	2%OFF	30%	USD200/CNY1500
USD20001-40000	2%OFF	30%	USD500/CNY3000
USD40001	2%OFF	20%	USD1000/CNY5000

 

FAQ

1. Whether the company is a factory or a trader?

We are the source factory of industrial valves, casting and finishing integrated operation, with
about 15 years of production and trade experience, we produce products adhere to quality,
through international certification, according to the market for technological innovation, with
cost-effective advantages, is the customer's favorite choice.

2.Where is the company address, can you see the factory offline?

Wenzhou AF Valve Fittings Co., Ltd. is located in Binhai Economic Development Zone,
Longwan District, Wenzhou City, with production advantages of the source factory, specializing in
the production of bellows valve series and other industrial valves. Welcome customers to visit the factory and discuss cooperation.

3. Is the company's product certified?

The company has passed EAC,ISO,CE certification, each product is produced in strict accordance
with the standard process, and must pass the quality inspection before it can be delivered to the
customer.

4. What is the company's delivery capacity?

It will take about 15 days for the goods to arrive from the time of customer's order to
shipment arrangement.

5. How about the after-sales service and warranty?

Warranty period: 12 months from the date of delivery; We will take care of all quality problems. If a longer warranty is required, it can be detailed and discussed.

6. May I have a sample?

Sure. We welcome you to order samples for testing and quality check. A wide range of samples
are accepted.

7. Whether custom is supported, MOQ?

We support the customization of different materials, specifications, sizes, types of valves.
Welcome to figure customization and send detailed parameters. Minimum order quantity: 20pcs

8. Shipping method and payment?

We support sea freight and air freight. Payment terms support L/C T/T D/P, etc

9. Why choose us?

1 We offer genuine products of high quality at competitive prices. 2. We have worked with
customers in more than 60 countries and regions around the world and know the market very well. 3.We have been focusing on industrial valves for more than 15 years, and you can rest assured when working with us. 4.The after-sales service will be very satisfactory. Any questions and feedback will be answered in a short time

10. What is the packaging like?

Outer packing wooden cases, woven bags, export wooden pallets, foam filled inner packing, to
ensure moisture-proof, sealed, strong packing, light weight, easy to transport.

Do not hesitate ,call us action!