Spiral Wound Gasket Outer/Center Ring

**Star Product: Spiral Wound Gasket from Sunwell – Available in CG, CGI, IR, R, RIR Types** 1. Our products are manufactured in strict compliance with all relevant gasket standards such as ASME, API, and EN. 2. We can produce a wide range of spiral wound gasket types including CG, CGI, R, RIR, and more. 3. With a monthly production capacity of 150,000 pieces, we ensure timely delivery for global customers. 4. We offer flexible material combinations to suit various operating conditions, including high temperature, high pressure, and corrosive environments. Sunwell Seals offers four main types of spiral wound gaskets: 1. **SW600-R (Basic Type)** This basic construction type features reinforced inner and outer diameters without filler, providing enhanced stability and better compression characteristics. It is ideal for use with tongue and groove, male and female, or flat face flanges. 2. **SW600-IR (Inner Ring Type)** Equipped with a solid inner metal ring, this gasket acts as a compression stopper. It helps prevent the accumulation of solids, reduces turbulent flow, and minimizes erosion and damage between the flange bore and the gasket’s inner diameter. Best suited for male and female pipe flanges. 3. **SW600-CG (Outer Ring Type)** Featuring a solid outer ring, this gasket ensures accurate placement on the flange face, offering additional radial strength to prevent blowout. The outer ring also acts as a compression limiter, making installation easier by aligning with bolt positions. Suitable for flat face and raised face flanges. For Class 900 and above, an internal ring is recommended. 4. **SW600-CGI (Inner & Outer Rings Type)** This dual-ring design provides extra compression limiting on both the inner and outer sides, protecting the flange face from corrosion in the annular space. Ideal for high-pressure and high-temperature applications, especially for Class 900 and above or when handling corrosive or toxic media. Spiral wound gaskets are widely used in industrial piping systems due to their excellent sealing performance and durability. If you need more information about our spiral wound gaskets or have specific requirements, feel free to contact Sunwell Seals. We’re here to help!

Low-temperature 2-color Ratio Pyrometer

This classification includes two color infrared pyrometers measuring range is 250℃-2200℃.

Compared with one color infrared pyroemter, two color pyrometer measuring result will not change with state of object surface (surface roughness or surface chemical state), that means two color infrared thermometer accuracy will not be affacted, while the 1-color pyrometer will.
The optical part of pyrometer, such as glass, will accumulate some dust in the surfac after using for a period. Water, gas, oil vapour, dust in the air will reduce the emissivity coefficient, so the monochromatic pyrometer will reduce the measured value at this time. The Dual color pyrometer measures the ratio of infrared radiation intensities of two band wavelength in a specific range. With dust, water vapor and other disturbances, the signals of two wavelength fall simultaneously and the ratio remains constant after division. And user just need to wipe the glass when it is too dirty.
Monochromatic thermometers cannot measure objects smaller than the field of view. When the object does not fill the field of view, the measurement temperature will be low. A bicolor pyrometer can measure objects smaller than the field of view.

Products in this classification are usually applied to metallurgical industry(rod and wire mills, Hot rolling mills), foundry, cement kiln, induction heating, heat treatment, heating furnace, vacuum furnace, monocrystalline silicon, polysilicon, semiconductor and other industrial temperature measurement.

two color pyrometer, two color infrared pyrometer, 2-color infrared pyrometer, ratio pyrometer

Changzhou Sijie Optoelectronics Technology Co.,Ltd. , https://www.sjinfrared.com