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Wellhead Check Valve Flange End API 6A 

Price: 1.0 USD 
Payment Terms: T/T,L/C 
Special Groups: High pressure check valve (3)
Swing Check Valve (2)
Wellhead API Check Valve (3)
Place of Origin: Shaanxi, China (Mainland) 
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Product Detail

Model No.: Check Valve - 3"
Production Capacity: 30sets/month
Delivery Date: 20days
Material: AISI4130
Working pressure: 6000 psi
Standard: API 6A
Performance Specification Level: PSL3
Material Class: EE
Means of Transport: Ocean,Land,Air
Packing: plywood
Application: Wellhead connection
Processing: Integral Forged
End connection: flange end
Size: 3"
Performance requirement: PR1

Wellhead Flow Line Check Valve 3" x 6000psi is conformed with API6A specification, applied for wellhead connection for oil well fluid control service

API 6A Wellhead Flow Line Check Valve 3" x 6000 psi

Wellhead Check Valve Flange End API 6A


Overview of the Flow Line Check Valve


The flow line check valve is a kind of  non-return valve. With the metal-to-metal seal by the pressure

grows, the flow line check valve has better the sealing function. The valve chamber can bear the

pressure of the pipeline anytime and prevent liquid backstreaming by self-closing baffle. The flow line

check valve is made of alloy steel and manufactured in full conformance with API-6A Standard, the

check valve is composed by valve body, valve deck, valve seat and valve rod.


Specification of the flow line check valve

Working Pressure


Nominal Bore

2.1/16"~4.1/16" (52mm~103mm)

Working Medium

oil,natural gas,mud and gas containing H2S,CO2

 Working Temperature

 -46°C~121°C(Class LU)

Material Class


Specification level


 Performance Requirement



Material details of the flow line check valve









  Valve body




  Valve clack








  Valve core








 Valve bonnet




Valve bonnet bolt




Valve bonnet nut












ZZ TOP is the experienced and expertized manufacturer for wellhead equipment, provides cost effective wellhead equipment in a wide range of pressure and sizes available to accommodate most casing sizes, which are designed complying with API-6A specification levels and performance requirements for land, platform drilling and completion applications, we also offer industry accepted primary and secondary seals, as well as tubing hangers with resilient or metal to metal seals.

The main products include  X-mas tree, Drilling manifold, Spacer spool, Riser Spool, Choke manifold, kill manifold, drilling spool, adapter spool,casing head, tubing head, DSA, integral fitting (swivel joint, Tee, Elbow etc) and other related gate valves & flanges.

Ms. Elaine
skype Ms. Elaine

Tel: 86-29-81779342
Mobile: 136 2920 7466
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Company Info

XI'AN ZZ TOP OIL TOOLS CO.,LTD [China (Mainland)]

Business Type:Manufacturer, Distributor/Wholesaler, Service
City: Xi'an
Province/State: Shaanxi
Country/Region: China (Mainland)

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zztopoiltools:   skype

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