Circular sight glass fitting type 322 PN 40/160 For flange mounting similar to DIN 28121

Material: Base flange: carbon steel / 1.4571 / 1.4539 / 1.4541 / 1.4404 / 2.4602 / 2.4605t Cover flange:  carbon steel / 1.4571 / 1.4539 / 1.4541 / 1.4404 / 2.4605 / 2.4605 Sight glass: Borosilicate glass DIN 7080 / or according to design Gasket: Flat gasket, material media dependent Shape:  for screwing onto tank flanges according to ASME B 16.5 Nominal size: 1 1/2" to 4 " According to ASME B 16.5 Nominal pressure: Depending on Class and NPS Temperature: max.: 280°C / special versions up to 500°C are possible Option: Optional versions are possible The sight glass fitting Type 322A for high-pressure applications is a solid fitting based on the construction principles defined in the industrial standard DIN 28121. Thanks to the significantly reinforced flange and the use of glass plates beyond the standard dimensions of DIN 7080, we are able to achieve working pressures of up to 250 barg. The tensioning of the glass is carried out similarly to our proven Type 322A through tension screws. This ensures that the fitting only needs to be properly fixed to the carrier flange in your system to achieve the necessary sealing. An execution for elevated temperatures can also be realized through the use of suitable gaskets and glass materials. Due to the high working pressure, the installation of wipers and spraying devices is unfortunately not possible with Type 322A. Lighting based on LED light sources is available from us. If the borosilicate glass similar to DIN 7080 does not meet your requirements, or if the process conditions themselves pose a problem for the highly resistant borosilicate glass plate, a mica protective disc specially adapted for the fitting offers additional protection against temperature and steam. FEP or Halar® coatings additionally protect the borosilicate glass from aggressive chemicals or lyes.

Material: Base flange: 1.4404 / 1.4539 /1.4571 / 1.4541 / 2.4602 / 2.4605 / other materials on request Cover flange:  1.4404 / 1.4539 /1.4571 / 1.4541 / 2.4602 / 2.4605 / other materials on request Sight glass: Borosilicatglass DIN 7080 Shape: DIN 28121 Nominal size: DN40 up to DN200 Nominal pressure: PN10 or PN25 / for higher pressures see type 322 Temperature:  Max. 200 ° C for higher temperatures see type 323 Seal: PTFE-enclosed resilient gasket (max. 200°C) Take advantage of our 360 degree 3D view for a perfect all-round view of our product.   Our round vessel sight glasses type 321 are screwed onto flanges according to DIN EN 1092-1 to allow for observation or illumination of the interior of the vessel. ACI vessel sight glasses of type 321 are designed according to DIN 28121 for operating pressures up to 10 or 25 barg. Here, a sight glass made of chemically highly resistant borosilicate glass DIN 7080 is clamped between two high-quality stainless steel flanges and a media-side PTFE-coated corrugated ring gasket. Since this gasket is situated in the force shunt, the flange parts of the sight glass are directly aligned with each other, thus protecting the glass plate as much as possible. The type 321 is delivered pre-assembled from the factory and can be mounted directly onto a flange according to DIN EN 1092-1 without additional effort. Should the unlikely event occur that the glass is damaged during operation, the entire fitting can be replaced with little effort. Our vessel sight glasses of type 321 are made from high-quality stainless steels 1.4571 (316Ti) or 1.4404 (316L). The glass material used is the industry-proven MAXOS® borosilicate glass according to DIN 7080. The sealing in the force shunt prevents settling of the gaskets, making it unnecessary to retighten the tension screws on site. The PTFE-coated gasket makes the vessel sight glass type 321 suitable for food, acids, alkalis, and most aggressive chemicals. If the borosilicate glass DIN 7080 does not meet your requirements or the process conditions themselves pose a problem for the highly resistant borosilicate glass, a custom-made mica protection plate for the fitting provides additional protection against temperature and steam. FEP or Halar® coatings additionally protect the borosilicate glass from aggressive chemicals or alkalis. As with other sight glass fittings, type 321 can be equipped upon request with a sight glass wiper type SGW, spray devices SVII, or lights.

Material: Base flange: 1.4724 / 1.4762 / 1.4828 / 1.4841 / 1.4845 / 1.4571 / 2.4605 Cover flange: 1.4724 / 1.4762 / 1.4828 / 1.4841 / 1.4845 / 1.4571 / 2.4605 Glass: Quartz glass, sapphire glass Sealing: Graphit, novamica, thermex Shape:  assembly for bolting straight onto DIN EN 1092 or ASME flanges Nominal size: DN40 up to DN200 Pressure: PN10 or on request Temperature: 400°C / Special versions up to 1000 ° C are possible on request Option: Optional versions are possible. The ACI sight glass type 323 is a variation of type 321, designed for an expanded range of applications, especially at higher temperatures. They serve to observe and illuminate the interior of sealed containers (container, boilers, tanks, silos, etc.). The PTFE-coated corrugated ring gaskets typically used in type 321 are no longer reliably usable above a temperature of 200 °C. To eliminate this disadvantage, we use high-quality graphite composite seals in type 323, so that the operating range of the borosilicate glass plates according to DIN 7080 can be fully utilized up to 280 °C, or even 320 °C with a mica disc. Even at temperatures above the limits of DIN 7080, type 323 can be used without problems with untempered borosilicate glass plates up to 400 °C. For higher temperatures, please inquire. With the sealing in the force shunt, type 323 offers you the same advantages as our proven type 321. Here, too, the glass plate is best protected over the entire circumference, and the fitting can be easily installed or exchanged as a single component. The fitting is completely assembled at the factory and can, upon request, be tested for pressure resistance and tightness, so you can rely 100% on our quality. Like type 321, type 323 can also be supplied with LED lighting upon request.