Inline Type Duckbill Check Valve

PN6 / PN10 / 150LB
DN100~DN600mm
NR, NBR, EPDM

get a quote

Inline Type Duckbill Check Valve Descriptions

Inline type duckbill check valve is also called rubber slow close check valve. Duckbill check valve, which has special structure like duckbill. It is one new water supply and drainage valve which has the function of discharge in positive direction while non-return in opposite direction. Inline type duckbill check valve is mounted into the pipe. Its shape and dimensions can be changed easily according to customer’s requests. In-line duckbill check valve is applicable widely to rain water, river water, sea water, slurry and industrial sewage. Flowspec Luokai can manufacture the inline type duckbill check valve with sizes from DN100 (4″) to DN600 (24″). Just feel free to contact us now to get best prices. 30 years of experience. High quality. Big stock. Fast delivery.

1. FEATURES

  • Duckbill check valve adopts all-rubber materials in which include reinforced fibers, which has simple structure, non-corrosive performance and no mechanical parts.
  • Duckbill check valve has strong operating performance, which can provide efficient and silent operation without any more energy device, reducing operating costs.
  • Duckbill check valve is applicable to general operating conditions, and special conditions of wearing and corrosive mediums, such like water, sludge, and mud.
  • Duckbill check valve has excellent effects of prevent of back flow.
  • Duckbill check valve use differential pressure between its inside and outside to achieve open and close naturally, so that it’s the best choice of waste water drainage system and pipeline system.

3. STANDARDS

  • Design & manufacturing: manufacturer’s standard
  • Face to face: manufacturer’s standard
  • Flanged ends: DIN PN10/16, ANSI150LB, JIS10K, UNI EN1092 table D/E
  • Inspection & testing: manufacturer’s standard

2. TECHNICAL SPECIFICATIONS

  • PN6 / PN10 / PN16 / JIS10 / 150LB
  • Size: 4″~24″ (DN100~DN600mm)
  • Materials: Pure Gum Rubber, Neoprene, Chlorobutyl,NBR, Polyurethane, Hypalon, Viton, EPDM
  • Clamps: steel, stainless steel

4. APPLICATIONS

  • Waste water system
  • Drainage system
  • Dam drainage
  • Airport and highway water drainage
  • Sewage pool drainage
  • Odor separation
  • Sewers drainage
  • Aeration system
  • Pump station system

Want to talk about our services?

Let's get in touch.

Please prove you are human by selecting the House.

contactOr give us a email at

sales@lokvalve.com