Eccentric Semi Ball Valve

PN10/PN16/PN25/PN40
DN50~DN2000mm
Ductile Iron, WCB, S.S.

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Eccentric Semi Ball Valve Product Information

Eccentric semi ball valve is one type of new structure ball valve, which is featured with no on-off friction, no easy wear sealing and smaller on-off torque. It includes two different structures, which are top entry eccentric semi ball valve and side entry eccentric semi ball valve. Equipped with multi-turn electric actuator or eccentric semi ball valve, it can be achieved in mediums regulation and shut down. Eccentric ball valve is applicable widely in the oil & gas, petroleum & chemical, waste water treatment, pulp, aluminium oxide, urban heating, etc. Flowspec Luokai can produce the eccentric semi ball valve according to GB/T26146-2010 with sizes of 2”~80” (DN50~DN2000mm). Contact us today. Get the better prices. 30 years of experience. Great after-sales service.

1. FEATURES

  • More reasonable structure design 
  • Lower pressure loss
  • Better sealing 
  • Longer service life
  • Easier maintenance

3. STANDARDS

  • Design & manufacturing: GB/T26146-2010
  • Face to face: GB/T26146-2010
  • Flanged ends: GB/T17241.6-2008 / BS4504 / ISO7005 / EN1092-2 / DIN2501
  • Inspection & testing: GB/T13927-2008

2. TECHNICAL SPECIFICATIONS

  • PN10/PN16/PN25/PN40
  • Size: 2”~80” (DN50~DN2000mm)
  • Materials: ductile iron A536 65-45-12 (GGG40), carbon steel (A216 WCB), stainless steel 304 (CF8), stainless steel 304 (CF8M)
  • Applicable medium: water, rain water, river water, corrosive mediums
  • Applicable temperature: -10℃~+120℃
  • Working pressure: 10bar, 16bar, 25bar, 40bar

4. APPLICATIONS

  • Hydropower station
  • Thermal power plant
  • Water plant
  • Water project
  • Oil & chemical industry
  • Pulp plant
  • Alunorte

Why Choose Flowspec Luokai

45+ Years Experience

Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.

Global Certifications

ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.

OEM Custom Solutions

Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.

Worldwide Delivery

Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.

Our Service Promise

Strict Quality Control

Every valve tested to API 598, EN 12266 before shipment

Timely Global Delivery

Reliable logistics to 5 continents with secure packaging

OEM & Custom Design

Tailored material, size, pressure and actuation to your specs

Dedicated After-Sales

Technical support and service throughout product lifecycle

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contactOr give us a email at

sales@lokvalve.com