API 6A API 16C Hydraulic & Manual Orifice Choke Valve

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Payment Terms: T/T,L/C
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Basic Info.
  • Valve Type: Orifice Choke Valve 
  • Standards Carried: API 6A, API 16C, NACE-MR0175 
  • Nominal Bore Size: 1-13/16" - 4-1/16" 
  • End Connection: Flange or Union 
  • Pressure Rating: 2000 PSI - 15000 PSI 
  • Material Class: AA, BB, CC, DD, EE, FF, HH 
  • Temp Class: L, P, R, S, T, U, V 
  • Product Specification Level: PSL1, PSL2, PSL3, PSL3G, PSL4 
  • Performance Requirement: PR1, PR2 
  • Application: Choke Manifold, Drilling, Fracturing 
  • Model No.: QH-H2OCV01 
  • Place of Origin: Jiangsu  
  • Min.Order: 1 Piece/Pieces
  • Means of Transport: Ocean
Supply Capacity
  • Production Capacity: 50 Pcs/Month
  • Packing:Plywood
  • Delivery Date: 40 Days


Orifice Choke Valve is molded of two pieces of high-performance tungsten carbide plates with excellent erosion resistance feature. One of plate rotates to alter the concentricity between the upper orifice and lower orifice of two plates so as to adjust the flow rate of fluid or gas.Orifice choke valve is important component of the Christmas Tree and Choke Manifold. It is mainly used for oil & gas drilling, fracturing, mud circulating, and ground gas injection/production. Orifice Choke Valve can be manually operated or hydraulically operated.

Qihang's orifice choke valves are fully designed, manufactured, and tested in accordance with API 6A, API 16C, and NACE-MR0175 standards. Available in bore sizes from 1-13/16" to 4-1/16" and rated working pressure up to 15000PSI. We can also design and produce as per customers' specific requirements and working environments.

Detailed Specifications:

Product Name: Orifice Choke Valve

Nominal Bore: 1-13/16", 2-1/16", 2-9/16", 3-1/16", 3-1/8", 4-1/16"

Needle/Max.Orifice Size: 1", 2", 3"

Standards: API Spec 6A, API 16C, NACE MR0175 etc

Rated Working Pressure: 2000 PSI to 15000 PSI

Operation Type: Manual, Hydraulic

Main Material: AISI 4130 (Forged), other material is available upon request

End Connection: Flange, Union, or Studded

Working Medium: Oil, Natural Gas, Water,  Mud, Gas containing H2S, CO2

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

Temp Class: L, P, R, S, T, U, V

Performance Requirement: PR1, PR2

Product Specification Level: PSL1, PSL2, PSL3, PSL4

Interchangeability: 100% interchangeable with Cameron H2 positive chokes and other major brands.

Application: Wellhead Christmas Tree, Choke Manifolds etc.


  • Integral forged valve body with fine mechanical properties.

  • Tungsten-carbide Wear Bushing. Overlay on the face of wear bushing increases its service life.

  • Controls can be operated from either remote or onsite manual during onshore and offshore operation

  • Trims are made of material with fine wear resistance and scour resistance.

  • Easy to operate and simple to maintain

  • On-Time delivery and competitively priced

BOM List of Manual Orifice Choke Valve

BOM List of Hydraulic Orifice Choke Valve

Qihang produces High Quality API 6A API 16C Orifice Choke Valve at Truly Competitive Prices.

Contact us Today for your specific needs.

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Tel: 0086-139-62481639
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Yancheng Qihang Petroleum Machinery Co., Ltd
No.8 Jianxin Rd, Lugou Industrial Park, Jianhu, Yancheng, Jiangsu, China (Mainland)
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