API Spec 6A High Pressure Flow Line Dart Check Valve / Flapper Check Valve

Check Valves are installed in high pressure lines to stop reserve flow by the automatic close of flapper or dart.

Flapper check valves include top-entry check valves and in-line flapper check valves, which allow fluids to flow towards the wellbore and prevent flowing backwards. For dart check valves, the flow will open the dart by overcoming the small spring force.

When the flow runs in opposite direction, the spring will push the dart against the seat retainer to prevent reserve flow.

We provides both standard and reverse-flow check valves. And we have also developed check valves for sour service in accordance with NACE MR0175.

2. Main Technical Parameters:

3. Features:

(1). Check valves are suitable for isolating completion fluid, high pressure processing and rig equipment repairing.

(2). The surface of valve internal baffle is covered with nitrile-butadiene rubber to extend life.

(3). The thread and the joint of ball face adopts American standard.

(4). The valve is casted by hard alloy steel and adopts union connection.

4. FAQ:

Why you need to choose Lake Petro?

As a professional oil and gas service company, Lake Petro has many good experience in selling and serves for the oilfield industries for years. Quality is the culture of the company, we provide API and BV certified products for customer.

Can you make us the best quality products as well as a good price?

Yes,we can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us yourmoney will be safe.

What is special compare with other companies?

First, we provide the quality products, with BV and API certified; At the same time, we provide our customer with the best service after sale, any time any where.