Main parts material 

 Entry times 
 Part Number 
 Name 
 Material 

 1 
 RV-01 
 Body 
 Ductile iron, gray cast iron 

 2 
 RV-02 
 Ring 
 NBR 

 3 
 RV-03 
 Valve cover 
 Qiuban cast iron, gray cast iron 

 4 
 RV-04 
 O-RING 
 NBR 

 5 
 RV-05 
 Dust cover 
 NBR 

 6 
 RV-06 
 Fixed bolt 
 Steel or galvanized bolts 

 7 
 RV-07 
 Driving cap 
 Ductile iron, gray cast iron 

 8 
 RV-08 
 Valve 
 Ductile iron coated with EPDM or NBR 

 9 
 RV-09 
 Nuts 
 Youth system 

 Notes: 

 DN50 ~ 600mm flange drilling according to standard manufacturing GB/T17241.6 
 DN50 ~ 200mm flange radians (D3) by PN10/16 manufacturing standards, DN250-500mm PN16 standards are consistent with 
 DN600mm flange diameter (D3) 1.0MPa found JISG5527-7.5 standard, 1.6MPa meet the standards PN16 
 Both ends of the surface from the (L) meet the standards of GB12221 RVXX short body, said valve rod of non-specified, RVXP that with labor-saving devices 
 The company reported a change dimensions without notice 
 RVHX said rod attached to the hand wheel Ming 
 RREX said rod attached to electric operation device Ming 
 RVCX said rod attached to the drive cap of non-specified 
 RVHX rod attached to said hand wheel of non-specified 
 RVHS said rod attached to the signal display of non-specified 
 RVEX said rod attached to electric operation of non-specified device 
 RVCH said rod attached to the drive cap of non-specified horizontal operation device 
 RVHH said hand wheel attached to non-specified horizontal rod operating devices 
 PN25-level ordered separately