Image shown is representative and may differ from the actual product in size, proportions, and color shade
3.500 in
(88.90 mm)
7.500 in
(190.50 mm)
4
0.750 in
(19.05 mm)
6.000 in
(152.40 mm)
1/2"
SIL SI50OR13 Full Face Gasket, Size: 150#-3"-FF-1/2"
Material: SIL SI50OR13 Full Face Gasket
Size: 150#-3"-FF-1/2" Full Face Gasket
Part Number: SI50OR13-150#-3"-FF-1/2"
Color: Orange
Detailed Description
SI50OR13-150#-3"-FF-1/2" is a Orange, 50 Shore A, Silicone (VMQ) Full Face Gasket. It is a 50 durometer Silicone (VMQ). [SI50OR13 is manufactured with the following features & specifications: Low Temperature Material, General Purpose Material. SI50OR13-150#-3"-FF-1/2" is a size 3, 150#-FF ASME Full Face Gasket. Material: 50 Durometer SIL SI50OR13 Full Face Gasket Size: 150#-3"-FF-1/2", 3 Pipe Size X 88.9mm ID X 190.5mm OD X 4 Bolt Qty X 19.050mm Bolt Dia. X 152.400mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | SI50OR13 |
| Material | Silicone (VMQ) |
| Color | Orange |
| Durometer | 50 Shore A Hardness |
| High Temperature | 205 °C / 401 °F |
| Low Temperature | -75 °C / -103 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 150#-3"-FF-1/2" |
| Pipe Size | 3 |
| ID | 88.90 mm / 3.500 in |
| OD | 190.50 mm / 7.500 in |
| Bolt Qty | 4 |
| Bolt Dia. | 19.05 mm / 0.750 in |
| Bolt Circle | 152.40 mm / 6.000 in |
| Thickness | 1/2" |
SI50OR13 is a 50 shore A orange silicone (VMQ) compound engineered for low temperature sealing where flexibility and conformability are critical. This material remains elastic down to -75°C, making it ideal for O-rings and gaskets used in cold climate equipment, aerospace systems, and industrial applications exposed to extreme temperatures. Its low durometer improves sealing in low pressure systems and tight tolerances, while providing good resistance to ozone, detergents, salt water, and vegetable and animal oils. SI50OR13 meets ASTM D2000 M5GE505 requirements and offers reliable performance across a wide thermal range.
Silicone rubber, commonly referred to as VMQ, is widely used in O-rings and gaskets due to its excellent temperature flexibility and resistance to environmental degradation. Low temperature silicone grades are specifically formulated to maintain elasticity in extreme cold conditions where many elastomers become brittle and fail. These materials are commonly used in industrial, outdoor, and aerospace applications where thermal cycling and cold weather performance are essential. While highly versatile, silicone compounds are generally not recommended for use with petroleum fuels or certain aggressive chemicals, making proper material selection important.
Keywords: SI50OR13, SI 50OR13, SI-50OR13, SI50 OR13, low temp silicone rubber, VMQ 50A orange elastomer, extreme cold O-rings, flexible gasket material, ASTM D2000 M5GE505, low durometer silicone, ozone resistant elastomer, industrial silicone seals, cold weather sealing rubber, Datasheet, TDS, Test Report, MTR, MSDS, SDS
