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

Price :

Performance and Purpose:
Comprised of a sealing ring, fan-shaped supporting blocks and fan-shaped angles, this product is mainly used by a hydro-static testing machine for the the pressure testing of steel pipes by hydro-static test. Type C has a larger seal gap than Type D (refer to company’s former catalogue). The sealing components with same dimensions are applicable to a wider range of steel pipe sizes. It is applicable to the pressure testing of casings, tubings, natural gas pipes and other steel pipes. It has also been used in leak testing of the steel pipes, welded joints and sealing for the ultra-high pressure valves.


Sealing Component

Sealing components are the most important devices for current and future mechanical and industrial equipment. Sealing components have two main functions. One is to prevent leakage of grease, water and gases; the other is to protect against dust.

Advantages :

1. Lip Optimization: under peripheral pressure, the lip and groove surface fit more closely, and the higher the pressure, the bettr 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.

How to make a good oil seal?

Three factors affect the production of oil seals.
Working pressure
Curing time

How to get useful oil seals?

You need to know the working environment.
Housing, shaft and width dimensions
Operating temperature, pressure and physical environment
(heat, ozone, chemical, etc.)

Working conditions:

Compliant for use with several standards about hydraulic testing requirements including API 5CT/ISO11960:2011 Petroleum and natural gas industries—Steel pipes for casing or tubing, GB/T9711.1-2011, GB/T9711.2-2011; GB8163-2008 for seamless steel tubes; GB/T3092-2008 for welded steel pipes.

Working pressure: ≤ 120 MPa
Working temperature: -20℃~+80℃
Working medium: water, emulsion, hydraulic oil

Material: Polyurethane


Additional information


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


Order No

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