What is the difference of Grade A, Grade B, Grade C, Grade D, Grade E and Grade F API 7K High Pressure Hoses

 

The high pressure hoses show PME Grade E Rotary Vibrator Hoses with integral hammer lug unions at both ends, male sub and wing nut at one ends and female sub at the other end. The over length of hose assembly is 50 feet.

 

According to API Spec 7K Drilling and Well Servicing Equipment, high pressure hoses assembly are identified by grades as the table 10.

 

Grade A, Grade B, Grade C, Grade D, Grade E and Grade F are classified by rated working pressure. It's also identical to the design pressure of PME high pressure drilling hoses.

 

API 7K Grade A PME Rotary Drilling Hoses rated working pressure 1500 Psi, test pressure 2250 psi, sized in 2", 2-1/2"

API 7K Grade B PME Vibrator Hoses rated working pressure 2000 Psi, test Pressure 3000 Psi, size in 2", 2-1/2"

API 7K Grade C PME Cement Hoses rated working pressure 4000 Psi, test Pressure 6000 Psi, size in 2", 3", 4" and 5"

API 7K Grade D PME Mud Delivery Hoses rated working pressure 5000 Psi, test Pressure 7500 Psi, size in 2" to 6"

API 7K Grade E PME High Pressure Drilling Hoses rated working pressure 10000 Psi, test Pressure 15000 Psi, size in 2-1/2" to 6"

API 7K Grade PME High Pressure Drilling Hoses rated working pressure 15000 Psi, test Pressure 22500 Psi with or without 2 sets of safety clamps which are not used as hoisting devices

 

Hydrostatic pressure test is performed on PME high pressure hoses assembly at the working pressure, which is 1.5 time of the working pressure. The test medium for hydrostatic pressure test is water.  

 

Email: contact@pmeindustrial.com or WhatsApp: +86-13808990736 for price quote of the high pressure drilling hoses, choke and kill hoses line, blowout preventer hoses and flowline flowback Chiksan Style Irons!