HBQ671F pneumatic valve insulation jacket for a variety of PN10 ~ 20 pressure on the pipe connected with a truncated or the media pipeline, the choice of different materials, respectively for anti-cooling solidification process of transmission of heavy oil, glue, and the media steam, oil, liquefied petroleum gas, natural gas, gas, nitric acid, acetic acid, urea and other media, and to medium heat and prevent crystallization. He has a compact, small size, light weight, good insulation properties, easy installation, open and close easily and so on. 
 ★ Technical Parameters: 






 Design Standards 

 GB/12237 


 Connection 

 Flange Standard 


 Length standard 

 Enterprise Standard 


 Flange Standard 

 GB/9113, JB/T79 


 Testing standards 

 JB/T9002 


 SDDS 

 American Standard ANSI Japanese standard JIS 


 Body material 

 Steel, stainless steel (304 or 316) 


 Spool Material 

 Stainless Steel 


 Sealing material 

 PTFE (special metal seal) 

 ★ and Connection Dimensions: 






 Diameter DN 

 d 

 G 

 A 

 B 

 L 

 D 

 K 

 D1 

 n-Md 

 f 

 H 

 W 


 mm 

 in 

 BQ73 

 BQ74 


 15 

 1 / 2 " 

 14 

 G1 / 2 " 

 150 

 15 

 35 

 90 

 65 

 46 

 4-12 

 4-14 

 2 

 170 

 140 


 20 

 3 / 4 " 

 19 

 G1 / 2 " 

 160 

 20 

 38 

 100 

 75 

 56 

 4-12 

 4-14 

 2 

 175 

 140 


 25 

 1 " 

 25 

 G1 / 2 " 

 190 

 20 

 42 

 110 

 85 

 65 

 4-12 

 4-14 

 2 

 180 

 140 


 32 

 1 1 / 4 " 

 29 

 G1 / 2 " 

 210 

 25 

 50 

 135 

 100 

 76 

 4-16 

 4-14 

 2 

 215 

 164 


 40 

 1 1 / 2 " 

 38 

 G1 / 2 " 

 230 

 30 

 60