http://www.jimaiactuator.com/actuated-valves/pneumatic-valves/ Product Description AT controls ball valves of Zhejiang Jimai Auto-Tech Co,.Ltd is designed for using AT pneumatic actuators to assembly with the ball valve. We provide double-acting and spring return as the optional control method. Among these, spring return has the special function of automatically close the valve when cut off the air input. It can be used in some harsh environments due to the safety and solid design. The AT controls ball valve only needs to use a pneumatic actuator to rotate 90 degrees with an air source and small torque to reach the tight close state. Product Features Standard: ANSI JIS DIN BS Screwed Type:BSPT, NPT, BSPP etc Seal: hard seal or soft seal Connection: Thread, flange, welding Structure: ball FAQ Q: What are your main products? A: Our main products are pneumatic actuators, electric actuators, pneumatic valves, electric valves, accessories and so on. We are committed to provide the best service to our clients worldwide. Q: How long is your warranty period? A: We provide 12months quality warranty to our customers and will patiently help to solve technical problem once appearing. Wholesale Pneumatic Valves website:http://www.jimaiactuator.com/actuated-valves/pneumatic-valves/