API 609 Double Offset Butterfly Valve
Double offset butterfly valve design in this way, first offset design is that seat sealing contour from valve body center contour; the second offset design is the offset of shaft of the disc from valve body center. The disc traveling tendency is minimized and seal becomes not jammed.
ZFV Design standard ：API 609, DIN2559, EN593, JIS, GOST
Product Details ：
1. Pressure rate Class 150LB
2. Size 6inch ( DN150 )
3. Material Body stainless steel ASTM A351 CF8, disc ASTM A351 CF8, seat sealing PTFE
4. Wafer ends
5. Operation handle lever
6. Face to face API 609/ISO
7. Test and inspection API598/ISO 5208
ZFV Product features：
1. API 609 Double Offset Butterfly Valve has good sealing performance, corrosion resistance, high pressure resistance and temperature resistance, and can be intelligently controlled and safely used.
2. Simple structure, small size, light weight, convenient installation and adjustment.
3. The API 609 Double Offset Butterfly Valve can choose low emission filler according to ISO 15848 requirements
4. The elastic seal is generated by torque.
5. The valve disc design makes the valve close and tight by the automatic sealing function, and there is compensation and zero leakage between the sealing surfaces.
6. Valve stem extension design available
7. Lockable handlebar.