API 7-1 3-1/2" 5000 PSI Full Opening Safety Valve (FOSV)

Full Opening Safety Valve is a ball type safety valve used to stop flow through the drill string when the drill string is being withdrawn from the well.

Our Full Opening Safety Valve is dual body full-opening safety valve, so it does not interfere with the running of tools such as core barrels or survey instruments. It is designed to be stabbed into the top joint of drill pipe or tubing string at the rig floor and closed quickly in case a well kicks.

The ball-type design permits the valve to be compact, easy to handle, and yet have great strength. Standard test pressure is 10,000PSI, but higher pressure ratings are available.

Full Opening Safety Valve and operating wrench be should be maintained on the rig floor at all times.

Specifications - Full Opening Safety Valve

How can I place order? 

A: You can contact us by email about your order details, or place order on line. 

How can I pay you? 
A: After you confirm our PI, we will request you to pay. T/T (HSBC bank), L/C, D/P, Western Union are the most usual ways we are using. If you want to use other way, please tell me, we can discuss.

What’s the order procedure? 
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr-epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 7-15days if we don’t have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you. 

How do you take care when your clients received defective products? 
A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment. 

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