High pressure sight glass type 520A for low temperature

These two high pressure sight glasses type 520A were developed by us for our Norwegian customer from the energy industry for high pressure low temperature application. The requirements for this sight glass were set high: Connection size of 3" (DN80) and pressure rating Class 900 for a temperature application range of - 60 °C to + 150 °C. In addition, the customer wanted the housing to be made of stainless steel 1.4462 / A182 F51 because of its use at sea and the resulting contact with salt water. This was no problem for us and we were able to offer and manufacture our standard type 520A in 3" with Class 900 in special material and deliver it within 4 weeks.