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Duckbill Check Valve

    Place of Origin: China

Product Description

Duckbill Check Valve
Duckbill check valves are widely used in the demanding applications of many industries, are precision-molded, one-piece elastomeric valves that provide reliable backflow prevention at low pressure differentials. Duckbill check valves allow free flow with positive differential pressure. With negative differential pressure, backflow is checked. Pressure drop across the valve is a feature unique to duckbill check valves. They can be designed to operate in a few millimeters (inches) of water to several hundred KPa (psi), depending on valve size, geometry and compound characteristics. Duckbill check valves are also designed to start functioning at specific opening and closing pressure ranges, depending on your specifications.

Features and Benefit
·Reliable backflow prevention
·100% elastomeric construction eliminates maintenance forged gate valves
·Will not corrode, warp bronze Gate Valve or freeze open or shut
·1"-2" Cracking Pressure, Low Head loss
·Curved Bill enhances sealing around debris
·Custom built for each application based on pressure and flow conditions
·Available in diameters from 1/2" (12mm) to 96" (2400mm)

Slip On Duckbill Valves

The duckbill valve slip on type is a slip-on design with an integral nylon reinforced rubber sleeve, and furnished with heavy-duty clamps. The Valve can be easily installed over the pipe end. Normally, GYLDT manufactures Slip On duckbill valves from DN50mm to DN2400mm, but we can supply the valves with any dimensions to meet your needs.

Flange Duckbill Valves

The Duckbill Valve Flanged Type is manufactured with a nylon reinforced rubber flange design, and furnished with galvanized carbon steel or stainless steel 304/316 retaining ring flange. The valves can be installed directly to the pipe flanges. Normally, GYLDT manufactures flanged type duckbill valves from DN150mm to DN2400mm, but we can supply the valves with any dimensions to meet your needs. .

Housed Duckbill Valves

The Duckbill Valve Series Housed Type is manufactured exactly the same as Flanged Type in rubber valve body, but finished with a carbon steel shell, which makes the Series Housed duckbill valve a part of the pipe line. The Valves can be installed easily between the pipes with flanges. Normally, GYLDT manufactures Housed duckbill valves from DN150mm to DN1200mm.

Flanged in-line Duckbill Valves

The Flanged Duckbill Valve in-line Type is manufactured with a nylon reinforced rubber flange design, which is used to be bolted between the pipe flanges, and the valves can act as part of the pipe line, no need for spare space. Normally, GYLDT manufactures in-line Type duckbill valves from DN50mm to DN1800mm.

Slip in-line Duckbill Valves

The series Duckbill Valve Slip In is a similar shape as series Duckbill Valve Slip On, but is a slip-in design. It is special manufactured for application where there is no flange joint, can be easily inserted the pipe. And the valves can act as part of the pipe line, no need for spare space. Normally, GYLDT manufactures Slip In type duckbill valves from DN50mm to DN1800mm.

Customized Duckbill Valves

The series Customized Duckbill Valves are provided for customers' special requirements, we can manufacture duckbill valves as per different shape with different rubber, and the connection will as per request for special location and application. But GYLDT makes Customized Duckbill Valves no stock in inventory, we produce as per requirement.
Contact GYLDT for more information when you design for a drainage system.

  • Molded Air/Water EPDM Silicone Rubber Duckbill Check Valve

    Model NO.: SMV2 Weight: 2.2g Statu: for Sale Working Temperature: -40c~230c Usage: for Meidical Devices Valves Trademark: Better Transport Package: Poly Bags, Carton Boxes Specification: CE, ROHS, FDA Origin: Xiamen, China HS Code: 3926901000 Molded Air/Water EPDM Silicone Rubber Duckbill  Check...

  • Butterfly oblique seal multi-function Check Valve introduction

    Butterfly oblique sealing multi-function check valve is mainly used for water supply and drainage piping system, at the exit from the slow, slow closure, check the role of anti-reverse flow of media to protect the safety of pumping station equipment. In structure, the valve uses a three-eccentric structure, oblique dish...

  • High pressure check valve structure and installation method

    1. High-pressure check valve disc is disc-shaped, around the seat of the valve shaft for rotational movement, because of the valve into the streamline linear flow resistance than the butterfly check valve, suitable for low flow and flow Not often change the occasion of large-caliber, but not for pulsatile flow,...

  • Check valve failure and maintenance methods

    One-way valve failure are generally: Gem ball or plastic gasket contaminated lead to poor sealing, showing the system pressure fluctuations. Valve can not be commutated or reversing action is slow, gas leaks, electromagnetic pilot valve failure and so on. (1) gem ball or plastic gasket contaminated lead to poor sealing....

Contact us if you need more details on Duckbill Check Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Rubber Duckbill Check Valve、Duckbill Valve. If these products fail to match your need, please contact us and we would like to provide relevant information.

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