Wei Tai Wei technology (Shanghai) Co. , Ltd.

 Focus on fire sprinklers and fire valves 

All our products are FM or UL approved and most carry both UL and FM listings / approvals.

The latest edition of the NFPA code stated “products shall be listed or approved,” without reference to either UL or FM although it is 

common practice for consultants to specify both a Underwriter Laboratories listed and a Factory Mutual approval.

UL listed means that the product has been tested, has passed all the stringent tests mandated by Underwriter Laboratories and is listed in 

the UL catalogue of Fire Protection Equipment.

FM approved means that the product has passed all severe tests mandated by Factory Mutual and is approved by FM for use in building 

structures insured by Factory Mutual Insurance.

We, and all other manufacturers of similar products are subject to identical factory and product audit approvals and tests without 

compromise as the same approval and test criteria are applied to all procedures of such products regardless of location any where in the 

world.

All valves are pressure tested for approval at 4 times the working pressure depending on valve size, and all valves must pass a cycling test of 

1000 open/shut operations without failure of any part or component.

We take great care to make our products both attractive and functional and it is essential that our customers and end users do the same in