Features:
TS G91 metal O-ring sealing ring is made of bent metal pipe, and the surface is electroplated, such as silver, nickel, cadmium, indium, or coated with soft materials, such as PTFE. Depending on the operating pressure, temperature and nature of the sealing medium,
Pipes are made of different metal materials, usually copper, stainless steel, high-temperature alloys, etc.
advantage:
◆ Good resilience performance;
◆ Excellent stress relaxation resistance;
◆ Resistant to chemical corrosion and nuclear radiation;
◆ The tightening load of bolts is smaller than that of metal washers;
◆ Can achieve very low leakage rate: <10-9Pa·m3/s (helium, △P=1bar).
application:
TS G91 metal O-ring sealing ring is used in sealing requirements and high sealing reliability occasions that traditional elastomers and other non-metallic seals cannot meet, such as high vacuum, high temperature, high pressure, high speed, vibration or cyclic load conditions. It has become an important seal in vacuum, ultra-vacuum, cryogenic, automotive, aerospace, nuclear energy, military and other industrial fields.
Main types and models:
According to the cross-sectional shape, TS G91 metal O-ring sealing rings include solid metal O-rings and hollow metal O-rings. TS G91 hollow metal O-ring is made of seamless steel pipe bent into a ring shape and welded at both ends. It can be made into different shapes, such as rectangle, oval and other shapes. The matching flange sealing surface can be a flat-ring groove, a flat surface with a limit ring, three-plane contact, etc. The main types and models of TS G91 metal O-ring sealing rings are shown in the table below.
Types and models of TS G91 metal O-ring seals
Type | model | Features | ||
Non-inflatable |
|
TS |
G9101 |
The ring tube of the hollow metal O-ring has no holes and no inflatable body inside the tube. |
Inflatable |
|
TS |
G9100 |
The ring tube of the hollow metal O-ring is filled with inert gas. |
Open hole ventilation type |
|
TS |
G9100K | A number of small round holes or long circular grooves are opened on the inner surface of the ring tube of the hollow metal O-ring, and the inside of the ring tube communicates with the pressure space of the sealing system. |
Materials and operating temperature range:
Seal ring material | standard | Operating temperature, ℃ | Plating/cladding materials | Temperature range, ℃ |
0Cr17Ni14MO2(316) | AMS5584 | <371 | 银 | <430 |
0Cr18Ni10Ti(321) | AMS5570 | <371 | 铜 | <930 |
Inconel600 | AMS5580 | <538 | 镍 | <1200 |
Inconel X750 | AMS5582 | <593 | 铅 | <200 |
Inconel718 | AMS5590 | <649 | PTFE | <230 |
Ring groove dimensions and tolerances:
| |||||
Pipe cross section | O-ring groove diameter D (range) G | O-ring and groove clearance C | Recommended groove depth T | Minimum groove width W | |
Outer diameter d | deviation | ||||
1.19 | +0.08/-0.03 | 10~50 | 0.25 | 0.94~1.02 | 1.78 |
1.57 | +0.08/-0.03 | 10~200 | 0.28 | 1.14~1.27 | 2.29 |
2.39 | +0.08/-0.03 | 25~200 | 0.33 | 1.88~2.01 | 3.18 |
3.18 | +0.08/-0.03 | 50~400 | 0.43 | 2.54~2.67 | 4.06 |
3.96 | +0.10 | 75~650 | 0.61 | 3.18~3.30 | 5.08 |
4.78 | +0.13 | 100~800 | 0.71 | 3.84~3.99 | 6.35 |
6.35 | +0.13 | 200~1200 | 0.76 | 5.05~5.28 | 8.89 |
9.53 | +0.13 | 300~2000 | 1.02 | 8.26~8.51 | 12.70 |
12.7 | +0.13 | 800~3000 | 1.27 | 11.05~11.43 | 16.51 |