Large gap ultra-high-pressure sealing components (Type CD )


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Performance and Purpose

The sealing component is made up of a polyurethane sealing ring and fan-shaped supporters. It is mainly used in hydro-static testing machines for pressure tests of steel pipes. In the non-working state there will be a gap between the sealing ring and the surface of the steel pipe. When testing, hydraulic liquid is applied to the surface of the sealing ring. The ring is then pressed to enclose the surface of steel pipe firmly, allowing pressure testing can be performed. It is applicable to the pressure testing of casings, tubings, natural gas pipes and other steel pipes. It has also been used in leak inspection of steel pipes, connections, welded joints and sealing for high pressure valves.

Description

Advantages

  1. Lip Optimization: under peripheral pressure, the lip and groove surface fit more closely, and the higher the pressure, the better the lip sealing.
  2. The fan-shaped supporters, in the premise of increasing the strength of the sealing ring, can shrink and expand in radial direction with the sealing ring.
  3. The sealing gap is larger than D-type , and a wider range of steel pipe specifications can be used for the same specification sealing ring.

Working conditions

Compliant for use with several standards about hydraulic testing requirements including API 5CT-2018、ISO11960-2014 Petroleum and natural gas industries—Steel pipes for casing or tubing, GB/T9711-2017; GB/T8163-2018 for seamless steel tubes; GB/T3091-2015 for welded steel pipes.

Working pressure: ≤ 200 MPa

Working temperature: -20℃~80℃

Working medium: water, emulsion, hydraulic oil

Material: Polyurethane

Specifications: Specification table for CD type large gap ultra-high-pressure sealing components

 

Additional information

Type

CD114.3-66, CD127-66, CD139.7-66, CD168.3-66, CD177.8-66, CD193.7-66, CD219.1-66, CD244.5-66, CD273.1-66, CD323.9-66, CD60.3-66, CD73-66, CD88.9-66

Pipe size

10-3/4", 12-3/4", 2-3/8", 2-7/8", 3-1/2", 4-1/2", 5-1/2", 5", 6-5/8", 7-5/8", 7", 8-5/8", 9-5/8"

Sealing dimension - d 0

125, 139, 152, 180, 189, 206, 230, 257, 284, 338, 70, 82, 99

Sealing dimension - D0

164, 176, 192, 224, 237, 248, 278, 287, 304, 326, 355, 381, 436

Groove dimension - d

121, 134, 147, 176, 185, 201, 226, 252, 280, 332, 66, 78, 95

Groove dimension - D

162, 174, 190, 222, 235, 246, 276, 285, 302, 324, 353, 379, 434

Groove dimension - H

66

Order No

C605, C607, C610, C611, C612, C614, C615, C616, C617, C619, C620, C623