1.Design and manufacture standards:

A) Wafer and lug: API 609, DIN3354

B) Flange and weld: BS5155 / EN598

2. Inspection and test standards:

API 598, DIN3230, BS5146

3. F-to-F:

A) Wafer and lug: API609, DIN3202 K2

B) Flange: ISO 5752

4. End flange dimension:

ASME B16.5 (for NPS<24"), ASME B16.47 series B,

API605, ASME B16.47 series A, MSS SP-44 (for NPS>24"), or BSEN 1092

5. Top flange: ISO5211

6. Connecting: Wafer, Lug, Flange, Weld

7. Size: 1-1/2" - 40", DN40 - DN1000

8. Pressure: Class125 - Class300, PN6 - PN40

9. Temperature: -20° C - 200° C

10. Body: Cast iron / ductile iron / WCB / 304 / 316

11. Disc: Ductile iron / WCB / 304 / 316 / CF8 / CF8M

12. Stem: 13%Cr / 316 / 304 / SS17-4pH

13. Seat: NBR / EPDM / PTFE / R-PTFE / PPL/Stainless Steel

14. Operation: Lever, worm gear, pneumatic, electric, hydraulic or pneumatic-hydraulic actuator

15. Property: Longer service life and zero leakage

16. Widely used in many industries such as: Water treatment, foodstuff, beverage, pharmaceutics, desalination, steelmaking, chemical machinery industries, pulp and paper manufacturing processing