La description

UL**2 Gate Valve

Standards and Specifications:
Design standard conform to：UL**2
Connection flange conform to：ASME B*6.1 CL**5/CL**0、AWWA C**1/A*1.*1
Face to face conform to：ASME B*6.*0
Inspection and test standard conform to：UL**2
Product Features：
1. This product has the certificate of UL, situable for fire protection applications.
2. Surface epoxy coating powder has been tested by UL labrotory, completely meet the requirements of UL**2 to ensure the product quality.
3. After 4.6m/s high flow speed test and life test according to UL**2 , rubber shall not have any cracking, permanent deformation,or break away from the wedge; valve with reliable sealing and long life.
4. Under maximum torque operation, no part shall be damaged, to insure good functioning of valve with electric actuator, even with momentary high torque.
5. Under the high pressure testing (up to DN**0,5 times rated pressure; above DN**0, 4 times rated pressure), there is no leakage and shell cracking.