dbb valve
plug valve

Current position:Home>>Products>>Ball valve>>double block and bleed valve
SEACH:

double block and bleed valve

The double block and bleed valve is also called DBB valve, generally say, it is make up by two ball valve and one neddle valve or two ball valve and a globe valve.


Why some conditions use the Double Block and Bleed valve?

Double Block and Bleed valves have evolved to replace and add the process of bolting together individual valves to make the valves in one body.it saved a lot of space and meterial, it is the development tendency of the valve in the future.

These new assembly of the double block&bleed valve provides great savings in weight, space and installation times especially in cage isolation. These savings can be as much as 70% in weight and shown that it can saving 70% installation time on the projects. However the greatest savings , therefore reducing the risk of the potential hazards this entails such as leak or insecure.

Dual ball is a necessary requirement when maintenance is taking place down stream of the first isolation valve.

These double bllock and bleed valves have also evolved to encompass the function of chemical analysis and mechanical character.  Cavity venting is provided by either two balls or globe OS&Y vent relief valve so that the pressure between the two isolation valves can be safely vented.

 

 

DBB Valve
DBB Valve
Product Sort:Ball valve>>double block and bleed valve
Pressure:150LB-1500LB
Size: DN15-DN1200
Design Std:API,DIN,BS,GB,JIS,EEMUA
Product Material:A105 WCA,WCB,WCC, LCB, LCC, WC6, WC9, C5, C12, CF8, CF8M, CF3M, CF8C, CK20, CN7M, CD4MCu, CK3MCuN, Cu5MCuC, CN3MN, M35-1, MONEL400, MONEL500, CY40, CW6M
  
A105 DBB valve
A105 DBB valve
Product Sort:Ball valve>>double block and bleed valve
Pressure:PN6-PN420 150LB-5000LB
Size:DN15-DN1200,1/2"-48"
Design Std:DIN BS JIS GB API ANSI
Product Material:WCB A105 LCB LF2 WC6 WC9 CF8 CF8M CF3 CF3M INCONEL 20 Alloy F51
  
Double block and bleed valve
Double block and bleed valve
Product Sort:Ball valve>>double block and bleed valve
Pressure:150LB-1500LB
Size: DN15-DN1200
Design Std:API,DIN,BS,GB,JIS,EEMUA
Product Material:A105 WCA,WCB,WCC, LCB, LCC, WC6, WC9, C5, C12, CF8, CF8M, CF3M, CF8C, CK20, CN7M, CD4MCu, CK3MCuN, Cu5MCuC, CN3MN, M35-1, MONEL400, MONEL500, CY40, CW6M
  
NPT double block and bleed valve
NPT double block and bleed valve
Product Sort:Ball valve>>double block and bleed valve
Pressure:150LB-1200LB
Size:DN15-DN100
Design Std:API,DIN,BS,GB,JIS,EEMUA
Product Material:A105 WCA,WCB,WCC, LCB, LCC, WC6, WC9, C5, C12, CF8, CF8M, CF3M, CF8C, CK20, CN7M, CD4MCu, CK3MCuN, Cu5MCuC, CN3MN, M35-1, MONEL400, MONEL500, CY40, CW6M
  
All4piece  Current:1Page/All1Page   First   Back   Next   Last
<