Product Description
API 6A Check Valve, also referred to non-return valve, or one-way valve, is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. We can produce both swing type check valve and lift type check valve. Available in bore sizes from 1-13/16" to 7-1/16" and pressure ratings from 2,000 to 15,000 PSI. The standard material is forged AISI4130 alloy. All of our Check Valves are fully designed, manufactured, and tested as per API 6A and API 16C standards and have been widely used on oilfield wellhead Christmas tree and manifolds with reliable performance.
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Features
1.Sealing is energized by flow fluid pressure, sealing performance gets better while pressure increasing.
2.Hard-faced sealing surface and sulfur-resistant core material assure fine performance of wear-resistant and corrosion-resistant.
3.Integral forged body with fine mechanical properties.
4.Check valve shall be hydro tested prior to delivery for safe performance.
Specifications
Product Name: API 6A Swing Check Valve, Lift Check Valve, One-Way Valve, Non-Return Valve
Nominal Bore: 1-13/16" - 7-1/16"
Material: AISI 4130 (Integral Forged)
End Connection: API 6A Flange
Standards Applied: API Spec 6A, API 16C, NACE MR0175
Pressure Rating: 2000 PSI to 15000 PSI
Material Class: AA, BB, CC DD, EE, FF
Temp Class: L, P, R, S, T, U, V
Performance Requirement: PR1, PR2
Product Specification Level: PSL1, PSL2, PSL3, PSL4
Paint Color: Red or Customized
Application: Mud Choke Manifold, Kill Manifold, Wellhead Christmas Tree Connection





About Lake Petro
Lake Petro is located in Dongying City, which is famous for Shengli Oilfield and the largest manufacturing hub of petroleum equipment in China. Following the principle of "quality first, science and technology innovated, people oriented", every Lake Petro person is sparing no effort to provide the customers with best products and services. Our products are based on advanced production line and testing equipment, our products are designed and manufactured according to certification of ISO, GOST, etc.
FAQ
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) and Paypal, Western Union are the most usual ways we are using.
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.