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Yancheng Qihang Petroleum Machinery Co., Ltd
Yancheng Qihang Petroleum Machinery Co., Ltd  

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You are here: home  > Wellhead XMas Tree Components & Tools  > API 6A Casing Spool for Wellhead Assembly and Xmas Tree

API 6A Casing Spool for Wellhead Assembly and Xmas Tree 

Payment Terms: T/T,L/C 
Place of Origin: Jiangsu, China (Mainland) 
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Product Detail

Model No.: C-22/C-29
Production Capacity: 100 Pieces/Month
Delivery Date: 40 Days
Bottom Flange Size: 11", 13-5/8", 16-3/4", 20-3...
Material: AISI4130 Integral Forged
Temp Class: L, P, R, S, T, U, V
Performance Requirement: PR1, PR2
Application: Wellhead Christmas Tree, Ca...
Means of Transport: Ocean
Packing: Plywood
Top Flange Size: 11", 13-5/8"
Rated Working Pressure: 2000 PSI - 15000 PSI
Material Class: AA, BB, CC, DD, EE, FF
Product Specification Level: PSL1, PSL2, PSL3, PSL3G
Standard Carried: API Spec 6A, NACE-MR0175

API 6A Wellhead C22/C-29 Casing Spool
Flange Size: 11", 13-5/8"
Rated Pressure: 2000PSI - 15000PSI
Material: AISI4130 Forged
L-U, EE, PSL3, PR1


A Casing Spool is a very important component in controlling wellhead pressure. It is often flange ended on the top of the casing head and connected with the bottom of the tubing head to secure the upper end of a casing string, ultimately comprising a portion of the wellhead system. A casing spool has a straight bore bowl with 45°landing shoulder that prevents damages to sealing areas commonly caused by drilling tools. This also eliminates test plug and bowl protector wedging problems when pressure is applied. Qihang's casing spools are normally furnished with threaded outlets and studded outlets and can also be flexibly designed according to clients' specific requirements and actual working conditions. They can be used for both single completions and dual completions. 

Casing spools produced by Qihang mainly comprises of CS-22 and CS-29 types, and this two models of casing spools are both provided with 45 degrees of main bearing shoulder. The depth of the bearing shoulder of the CS-29 casing head is bigger than that of CS-22, and is applicable to drilling deep well after being assembled with the CS-29 type casing hanger. Engineered to operate under heavy loads and high pressure, our casing spools work well with various slip type and mandrel type casing hangers for your well head completion.

Detailed Specifications:

Product Name: Wellhead Casing Spool

Outlets: Line pipe, Flanged (Studded), Extended Flanged 

Pressure Rating: 2000PSI, 3000PSI, 5000 PSI, 10000PSI, 15000PSI

Material Class: AA, BB, CC, DD, EE, FF

Main Material: AISI4130 Integral Forged

Temperature Class: L-U

Working Medium: Petroleum, Natural Gas, Mud, Gas containing H2S and CO2 

Performance Requirement: PR1, PR2

Product Specification Level: PSL1, PSL2, PSL3, PSL3G

Standards: API Spec 6A, NACE MR0175, CE, ISO9001 etc

Appliaction: Petroleum Drilling & Production, Wellhead Assembly & Christmas Tree

Traceability: Qihang's casing spools are supplied with full traceability documentation for each component.

Origin: China


  • Attaches above the Casing Head and seals off the next casing string

  • Supports the blowout preventer while drilling

  • Allows for testing of the blowout preventer

  • Housing for casing hanger and seal assembly

  • Side outlets for annular access

  • Secured by locking screws

  • Available in various sizes.

  • Versatile straight-bore design,uses a 45° landing shoulder

  • Allows use of lock screws to retain hanger

  • Has a additional lock screws for Bowl protecion

  • Accepts a wide variety of slip type and mandrel type casing hangers

  • On-Time delivery and competitively priced

C-22 Casing Spool Specifications

C-29 Casing Spool Specifications (API 6A)

Casing Spools, Ball Screw Operated (BSO) Gate Valves on a Wellhead Xmas Tree Produced by Qihang

All of Qihang's raw materials and products are subject to strict and comprehensive quality check and testing.

Qihang produces High Quality API 6A Casing Spools at Competitive Prices.

Contact us Today for your specific needs.

 Mr. Bruce

Tel: 0086-139-62481639
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Company Info

Yancheng Qihang Petroleum Machinery Co., Ltd [China (Mainland)]

Business Type:Manufacturer, Trading Company, Service
City: Yancheng
Province/State: Jiangsu
Country/Region: China (Mainland)

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