Product Description
Flow Line Check Valve
Description:
Check Valves are installed in high pressure lines to stop reverse 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 reverse 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.
Features:
- Check valves are suitable for isolating completion fluid, high pressure processing and rig equipment repairing.
- The surface of valve internal baffle is covered with nitrile-butadiene rubber to extend life.
- The thread and the joint of ball face adopts America standard.
- The valve is casted by hard alloy steel and adopts union connection.
Specifications:
| Product Name |
High pressure check valve |
| Material Class |
AA-EE |
| Working Media |
Crude oil and natural gas |
| Processing Standard |
API 6A |
| Working Pressure |
3000 ~ 15000psi |
| Processing Type |
Forge |
| Performance Requirement |
PR1-2 |
| Product specification level |
PSL1-3 |
| Nominal Bore Diameter |
2", 3" |
| Connection Type |
Union, BOX thread, Pin thread |
| Types |
Flapper, Dart |
Company Profile
Packaging & Shipping
FAQ
1) How can I place order?
A: You can contact us by email about your order details, or place order on line.
2) How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T and Western Union are the most usual ways we are using.
3) 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 15-25days 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.
4)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.
5)How do you check all the goods in the production line?
A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.
Flow Line Check Valve
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