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Check Valve

1.Available with swing type, piston type, dual plate type, tilting disc type, etc.
2.Available in wafer, Lug, socket weld, butt weld, and flange ends
3.API 6D and DIN standards ensure reliable and efficient valve operation.API6D check valves are fully open.
5.Automatic operation without external control, ideal for continuous flow conditions.

Categories

Butterfly Valve

Check Valve

Sedelon® produces a wide range of Check valves based on API 6D and DIN standards, offering different material options such as Forged Steel, Stainless Steel, Alloy, Bronze, and even Ceramic. These valves operate automatically without external force, and are available in various configurations, including Lift, Swing, Butterfly, and Wafer types, with options for specialized materials like Hastelloy and Duplex Stainless Steel for corrosive environments.
Sedelon® Check valves are used in industries requiring fluid control, particularly in high-pressure, high-temperature, and corrosive environments.
Sedelon® also provides high and low-temperature solutions, pressure seal designs, and noise-reducing Dual Plate Wafer Check valves, making them suitable for a variety of industries.

Product Features

Suitable for high-pressure, high-temperature, and corrosive environments with options like Duplex Stainless Steel and High Nickel Alloy.
Noise reduction with Dual Plate Wafer Check valves, preventing Water Hammer and Slam.
Materials: Forged Steel, Stainless Steel, Bronze, Alloy, and non-metal materials like Ceramic.
Types: Lift, Swing, Butterfly, Ball, Duckbill, and Dual Plate Wafer (Silent) Check valves.
Connection types: Screwed, Flanged, Butt Weld, Socket Weld, and Wafer.

Certification Standards

API 6D: Standard for Check valves.
API 602: Standard for Forged Steel Check valves.
API 603: Standard for Stainless Steel Check valves.
ISO 15848-1:2006: Certification for low emission valves.

Tilting Disc Check Valve

Materials：

WCB 、WC6 、WC9 、CF8、 CF8M、 CF3、 CF3M 、CN7M、LC1

LC2、LC3、LCB、LCC、Monel、 20# Alloys、4A、5A

Butterfly type check valves

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

DIN Check Valve

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

Big Size Wafer Check Valve

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

API 6D check valve

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

DIN3356 Check Valve

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

API602 Forged Steel check Valve

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

Cast Steel Check Valve

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

Forged Steel Swing check Valve

Our industrial valves are designed for optimal performance and reliability across a wide range of applications.

Why Choose Sedelon as Industrial Valves Vanufacturer?

Sedelon is your reliable industrial valve manufacturer. We have a trusted supply network as well as we offer the latest production and assembly machinery. Here are the reasons why you should choose us as your industrial valve supplier.

Variety

Sedelon supports many industrial applications because we manufacture an extensive range of industrial valves，including butterfly, ball, check, gate, globe, plug, and actuated valves.

Custom Services

We offer tailor-made industrial valves to ensure that our product fits your application standards and demand.Sedelon is lSO, APl, MSS and ASME compliant to guarantee you the highest product quality.

Safety

Our industrial valves and services comply with international standards and specifications to make sure that we only produce the best and highest quality products and services to our clients.

Fast shipping

As a business partner, Sedelon makes sure that we commit to our clients’ requested deadline because we very much understand the importance of adhering to the timeline required.

Frequently Asked Questions

1、Materia

2、After Sales

3、Design

4、Standard

5、Production capability

6、Others

For check valves, what kind of material do you produce?

We produce carbon steel, alloy steel, stainless steel, and bronze materials.

Could you provide a certificate of material?

Yes, we can provide a material report EN 10204 3.1 certificate after the valve is completed.

Could you do positive material identification on the material?

Yes, we have portable PMI machines.

Could you provide test bars for chemical analysis, impact test, and other tests?

Yes, we can prepare test bars during production upon customer request.

Could you provide material selection service?

Customers should choose suitable materials and pressure ratings based on working conditions, but we are responsible for the specified material and pressure rating.

How long is your warranty period?

Our warranty is 12 months after the valves leave the factory.

Could you repair or replace defective goods for free?

During the warranty period, we will repair or replace defects caused by material or manufacturing issues, excluding man-made damage.

Can you provide installation service?

We can provide installation and operation manuals.

What is the design standard of the check valve?

The design standards are BS 1868/API 6D for swing check valves, API 594 for wafer check valves, and API 602 for forged check valves.

What types of check valves do you have?

Swing check valve, lift check valve, wafer check valve, lug type, axial flow/nozzle check valve, tilting check valve, etc.

Does the check valve have a soft seal design?

Wafer check valves designed by API 594 can have metal-to-metal or soft sealing designs, but BS 1868/API 6D/API 602 valves are metal-sealed.

Do you have retainerless wafer check valves? What are its advantages?

Yes, retainerless wafer check valves are more reliable, as they are less prone to leaks or part failures compared to standard versions.

Are your check valves zero leakage?

Metal-sealed check valves meet API 598 standards, and soft-sealed check valves can achieve zero leakage.

What are the design standards for check valves?

Design standards: BS 1868/API 6D/API 594/API 602, Face-to-face: ASME B16.10, Pressure test: API 598/API 6D, etc.

Can you make custom production on request?

Yes, we can customize check valves based on customer's specifications on the original valve body.

What is the leak rating of your check valve?

Soft-sealed wafer check valves can achieve zero leakage, while hard-sealed check valves meet Class D standards for leakage.

Do you have check valves in stock?

Yes, we have BS 1868-designed WCB swing check valves in stock, ranging from 150LB to 600LB in various sizes.

What is the maximum pressure your check valve can reach?

We produce check valves with pressure ratings from 150LB to 2500LB.

Do you have any MOQ limit for valve order?

Yes, there is an MOQ limit for small sizes, but for larger sizes, 1 piece is acceptable.

Can the check valve be installed vertically or horizontally?

Swing check valves can be installed either way, but lift check valves are recommended for horizontal installation.

How to install a wafer check valve?

Install wafer check valves with the flow direction matching the pipeline's flow, and in vertical pipelines.

What is a check valve?

A check valve prevents the backflow of media by using its disc, which moves based on pressure and weight.

Can you provide ITP?

Yes, after receiving the order, we can provide ITP (Inspection Test Plan).

Can you provide mating flanges?

Yes, we can provide mating flanges upon request.

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