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ACE Hollow-Ball Valve Company Limited has the patent rights in making stainless steel hollow ball, since 1995, dedicated to innovation of forming pipe hollow valve ball and successfully accomplished the production in May of 1996. We have got patent rights of the unique hollow ball construction and its forming method, patent recognized by Taiwan, Germany, Japan, China, France and followed by many other countries so far.

Taiwan No.105898
Japan No. 3039639
Germany Nr. 20800348.1
China Zl. 98201887.8

Advantages of Stainless Steel Forming Pipe Hollow Ball
  • Stainless Steel Forming Pipe Hollow Ball
    Non-Conventional Casting Product
  • Pressure Test Approved By SWRI API-598 Class 150
  • 100% no leaks and pin holes
  • Better resistance to Alkalis & Acids
  • 50%~70% lighter than conventional solid balls
  • Torque reduced by 20%~40%
  • Easier Installation
  • Labor Safety
  • Cost Savings
  • Prolog PTFE life


  • Stainless Steel Ball Valve
  • Carbon Steel Ball Valve
  • Cast Iron Ball Valve
  • Brass Ball Valve
  • Plastic Ball Valve
Model Description Size Range Material Sphericalness
HC Without Core & Tubular Conduit over 1" SUS 304
SUS 316
1"~3" 0.05
HA With Core & Tubular Conduit over 3" SUS 304
SUS 316
3"~4" 0.05
*OEM/ODM is acceptable by clients
Proven by Valve Pressure Test per API Standard 598, Sixth Edition by Southwest Research Institute (SwRI) Flow Component Test Facility Testing Laboratories in the U.S.A.