3 7/8", 5", 10000psi, 15000psi Rupture Disk Safety Circulating Valve / RD Circulating valve

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price: Negotiable
minimum:
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Beijing
Validity to: Long-term effective
Last update: 2017-08-31 08:23
Browse the number: 396
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Product details

Xi'an ZZ Top Oil Tools Co.,Ltd is one of the top level rupture disk safety circulating valve manufacturers and suppliers, with professional factory, we are able to produce API and oilfield rd circulating valve, dst rd circulating valve, rupture disc circulating valve, well testing rd circulating valve, welcome to contact us.

Briefly Introduce:  

The rupture disk (RD) safety circulating valve functions as both a safety valve and circulating valve, which is full opening, annulus pressure operated single shot safety circulating valve.


Structure Features

• The tool functions as a safety valve when the annulus pressure reaches a predetermined value. At that pressure, the valve isolates the workstring below the tool and establishes communication between the annulus and the workstring above the tool. This tool converts into a circulating valve when the ball valve section is removed and attach a lower adapter called RD Circulating Valve. The valve can not be open when closed in downhole operation.

• RD Circulating valve is the same as RD Safety circulating valve except short of ball valve section, the annulus pressure made RD burst and the pressure goes into RD hole and push circulating mandrel forward, then open the circulating ports.


Specification


 

Size/in

OD/       

mm

ID/ 

mm          

Working pressure 

/ Mpa

Service 

environment

Working 

temperature

Connection

3 7/8”

98.5

45

70

105

Mud, 

Crude Oil, 

Natural gas

 with 

H2S and acid

--29oC ~

+204oC

EUE

IF

CAS

     5"

127.5

57

 


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