DST tools 5" RD Safety Circulating Valve

Specifications:

Features and Benefits:

The tool is composed of three major sections:

• The power section consists of a power mandrel case and rupture disk that is available for a wide range of pressure applications. The rupture disk bursts at a predetermined pressure, allowing annulus pressure to be applied to a differential area on the power mandrel. The power mandrel moves down, first pushing the ball valve closed, and then opening a set of circulating ports.

• The circulating section consists of a set of ports that are initially sealed by the power mandrel. When the rupture disk bursts, the power mandrel moves down, exposing the ports that allow communication between the annulus and workstring.

• The safety valve consists of a ball valve, operating pins, and collet fingers. As the power mandrel moves down, the operating
arms close the ball valve. The collet fingers expand, allowing the power mandrel to continue traveling down to open the circulating ports.

Features and Benefits
The tool is composed of three major sections:

• The power section consists of a power mandrel case and rupture disk that is available for a wide range of pressure applications. The rupture disk bursts at a predetermined pressure, allowing annulus pressure to be applied to a differential area on the power mandrel. The power mandrel moves down, first pushing the ball valve closed, and then opening a set of circulating ports.

• The circulating section consists of a set of ports that are initially sealed by the power mandrel. When the rupture disk bursts, the power mandrel moves down, exposing the ports that allow communication between the annulus and workstring.

• The safety valve consists of a ball valve, operating pins, and collet fingers. As the power mandrel moves down, the operating
arms close the ball valve. The collet fingers expand, allowing the power mandrel to continue traveling down to open the circulating ports.

DST Oiltools Co., Ltd is a leading manufacturer and supplier of drill stem testing (DST) tools for over 10 years. We mainly engages in DST tools for the annular pressure operated and full bore type and all supplied products are produced per API Spec. Our main products include various sizes of RTTS Packer, RTTS Safety Joint, Select Tester Valve, Drain Valve, LPR-N Valve, Omni Valve as well as Round Mandrel Slip Joint, Hydraulic Jar, Shock Absorber and other DST tools. We have advanced facilities and professional workers in this scope. During the past several years, our products have been widely exported to USA, UAE, Iran, Middle East, India, Pakistan, Indonesia and so on. 

We sincerely eager to establish cooperation with either end-users or dealers all over the world. And we believe our mutual cooperation will boost both our company's development and the Oil and Gas Industry. 

Our success depends on your success and we have confidence to offer you qualified products with competitive prices and timely services in the most professional and efficient way to accomplish your targets.