Home » Hydraulic Seals » High Pressure Seal, Type C

High Pressure Seal,

, Type C

When not in operation, type C high pressure seal leaves larger gaps between mating surfaces than type D. Another distinctive feature that sets type C apart from type D is the curved metal plate inserted between the trapezoidal metal reinforcement and the mating rim of the seal. Note that these metal blocks have sharp corners that may cut the seal rim instead of rounded corners found on type D, which explains why there should been metallic inserts on type C.

Designed primarily for use in reliable sealing of casing pipes, oil production tubing, natural gas pipelines and other steel pipes during a hydrostatic test, Type C high pressure seal is also employed to seal high pressure valves, pipe joints and welded pipes ends.

Operating Conditions
Casing pipes or oil production tubing used in oil and natural gas industry that comply with API 5CT/ISO11960:2011, GB/T9711.1-2011, GB/T9711.2-2011 standards
GB8163-2008 seamless steel pipes
GB/T3092-2008 welded pipes
Operating pressure ≤120 MPa
Operating temperature: -20°C~+80°C
Operating media: water, emulsified liquid, hydraulic oil

High Pressure Seal Assembly Diagram

Related Specs
No.
Type

Pipe size(inch)

Groove dimensions

Sealing ring dimensions

Order No.
D d H+0.2 Do do
1 C12.7/17-33.5 1/2" 86 20 33.5 86.5 24 C201
2 C19-33.5 3/4" 86 23.5 33.5 86.5 24 C201(2)
3 C21.3/26.8-33.5 0.84" 95 30 33.5 96 34 C202
4 C33.5/42.3-33.5 1.315" 110 46 33.5 111 49 C203
5 C48.3-33.5 1.9" 140 58 33.5 141 64 C204
6 C60.3-33.5 2 3/8" 163 70 33.5 164 74 C205
7 C73-33.5 2 7/8" 154 84 33.5 155 87 C206
8 C73A-33.5 2 7/8" 176 84 33.5 177 87 C207
9 C88.9-33.5 3 1/2 " 193 98 33.5 194 104 C211
10 C108-33.5 4 1/4" 211 119 33.5 212 124 C213
11 C114.3-33.5 4 1/2" 220 120 33.5 221 132 C501 (1)
12 C127-33.5 5" 234 137 33.5 235 145 C216
13 C139.7-33.5 5 1/2 " 249 150 33.5 250 160 C217
14 C153.9-33.5 6.06" 261 165 33.5 262 172 C218
15 C168-33.5 6 5/8" 273 178 33.5 274 186 C219
16 C177.8-33.5 7" 285 188 33.5 286 196 C220
17 C194-33.5 7 5/8" 292 201 33.5 293 205 C221
18 C219.1-41 8 5/8" 331 227 41 332.5 232 C502
19 C273.1-41 10 3/4 " 395 284 41 396 292 C505
20 C244.5-41 9 5/8" 364 255 41 365 265 C506
21 C323.9-41 12.795" 448 339 41 448.5 347 C503
22 D339.7-41 13 3/8" 464 365 41 466.5 365 C504
Related products
Inquiry Form