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ANNULAR BOP

LIGHTFIR has several type of Annular BOP.
 
MSP type Annular Blowout Preventer/Diverter has been developed to fit for low pressure drilling service with simple and reliable structure design. Piston and Packing Units are the only two moving parts which can reduce the wearing area thus can shorten the maintenance and downtime. Two sizes of MSP type Annular BOP are available - 21-1/4” - 2000 Psi Annular BOP and 29-1/2” - 500 Psi Diverter.
 
The 'GK' type Annular BOP is a universal Annular Blowout Preventer and it is designed especially for land drilling application. This type BOP is safer and more efficient, requiring less maintenance and less downtime. Its rugged, reliable and long-life tapered packing element guarantees positive seal meanwhile strong, simple construction simplifies maintenance.
 
Bolt Cover type Annular BOP features space saving design,low operating pressure and compact structure thus makes it ideal to use where space is priority. It can seal off telly, drill pipe,tool joint,drill collar,casing&tubing, wire-line or any other shape of drilling tools. Stripping of pipe,tubing,and wire-line through the packing element can also be accomplished at lower pressure. A wide range of sizes both in bore(from 7-1/16" to 20-3/4")and working pressure(from 3000Psi up to 10000Psi) are available to suit any work applications.
 
 

Nominal Diameter Working Pressure Drilling Annular BOP
in psi Spherical Rubber Core Conical Rubber Core
9 3000  
5000  
10,000    
11 3000  
5000  
10,000  
15,000    
20,000    
13 5/8 2000    
3000  
5000
10,000  
15,000    
16 3/4 3000  
5000  
10,000    
18 3/4 5000  
20 3/4 3000  
21 1/4 2000  
5000  
10,000    
29 1/2 500