Specifications:
1.Halliburton type, all could change with Halliburton parts.
2.All equipments are produced according to API standard.

The Select Tester valve is a full-opening, annulus pressure operated tool. With applied pressure, the tool can be locked open and then returned to the normal operating sequence at any time.

The ball valve operates independently of pressure changes from operations such as acidizing and fracturing. This gives the Select Tester valve greater compatibility and flexibility with other tools in the string.

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.