Swing type bolted bonnet is the most used one by the industry, normally coupled with on-off bolted bonnet gate valves and globe valves.
1) Materials: Materials available include carbon steel, low temperature carbon steel, low alloy steel, austenitic stainless steels, austenitic-ferritic duplex stainless steel, nickel alloys. 2) Pressure classes: The pressure classes normally available are 150#, 300# and 600#. 3) Size: Most used standard of reference are API 6D, regular opening, API 594, BS1868. EN and ISO standard can also be referred to.
Note: We could supply Swing type bolted bonnet with different dimensions and pressure designed to the specific requirements of the customer (temperature, pressure, size of the line)