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Shanghai kangquan Valve Co. Ltd. Quality Control

Good quality Cast Steel Gate Valve for sales
Good quality Cast Steel Gate Valve for sales
Customer Reviews
Have cooperated with this factory for 10 years, they never let me down, good quality, great service. I highly recommend

—— Tecofi

I am satisfied with this factory because of the carefulness of Steve. They always arrange everything for me without any worry.

—— Stema from France

Good Suppliers of Valvest, have over decedes cooperation.

—— Laurence

Verious of products for optional,and one- stop-shop, good to work with professional people

—— Thomas Louis

The quality is top . I think the factory value every detail. Every time i receive the goods, i am very satisfied

—— Alex from Russia

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QC Profile

Test Pressure according as API / ANSI


Test Item Shell Test Seal Test Back Seal Test Air Seal Test
Medium  Water  Air
 Unit MPa Ibf/in2 MPa Ibf/in2 MPa Ibf/in2 MPa Ibf/in2
 Pressure (Class) 150 3.1 450 2.2 315 2.2 315 0.5-0.7 60-100
300 7.8 1125 5.6 815 5.6 815
400 10.3 1500 7.6 1100 7.6 1100
600 15.3 2225 11.2 1630 11 2 1630
900 23.1 3350 16.8 2440 16.8 2440
1500 38.4 5575 28.1 4080 28.1 4080


 Test Pressure as JIS


 Test Item  Shell Test  Seal Test  Back Seal Test  Air Seal Test
 Medium  Water  Air
 Unit MPa MPa MPa MPa
 Nominal Pressure 10K 2.4 1.5 1.5 0.5-0.7
20K 5.8 4.0 4.0



  • Standard:WRAS


    Issue Date:2013-07-08

    Expiry Date:2018-07-31


    Issued By:WRAS

  • Standard:API


    Issue Date:2014-07-06

    Expiry Date:2017-07-06

    Issued By:API

  • Standard:ISO


    Issue Date:2003-08-15

    Expiry Date:2017-08-07

    Issued By:Intertek

  • Standard:SGS


    Issue Date:2015-03-25

    Expiry Date:2017-03-25

    Issued By:SGS

  • Standard:Business License of Enterprise Legal Person


    Issue Date:2000-03-31

    Expiry Date:2020-03-31

    Issued By:hanghai Administration for Industry and Commerce

  • Standard:People’s Republic of China Organization Code Certificate


    Issue Date:2013-10-22

    Expiry Date:2017-10-21

    Issued By:Shanghai Bureau of Quality and Technical Supervision

  • Standard:Manufacture License of Special Equipment People’s Republic of China


    Issued By:Shanghai city of quality and Technical Supervision Bureau

  • Standard:COCC

  • Standard:certificate

  • Standard:membership

Contact Details
Shanghai kangquan Valve Co. Ltd.

Contact Person: Mr. Steve

Tel: 86-21-57626759

Fax: 86-21-57617555

Send your inquiry directly to us (0 / 3000)


Address: No.159 Jiugan road Sijing industrial zone Songjiang District Shanghai, China

Factory Address:No.159 Jiugan road Sijing industrial zone Songjiang District Shanghai, China