General Description:
The bellows sealed globe valve uses a closed bellows that can be stretched and compressed to replace the packing, which can effectively prevent external leakage caused by packing loss. It is generally used for the transportation of highly permeable media, such as valves on hydrogen systems, as long as the bellows is not damaged, there will be no leakage.
Design Standards:
Design and Manufacture: EN 13709
Face to Face Dimension: EN558-1 GR.1
Flange Connection Dimension: EN1092-1
BW Connection Dimension: EN 12627
Test and Inspection: EN12266
Other: NACE MR01-75, Low Emission Test
Products Range:
Size: DN50 ~ DN600 PN16/25/40; DN50 ~ DN400 PN63/100;
Rating: PN16 ~ PN100
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Bellow Materials: SS304, SS316L, SS321 (1.4541), 1.4571, Inconel, Hastelloy C276
Trim: Per API 600
Operation: Handwheel, Gear, Motorized, Pneumatic
Design Features:
Zero stem emission
Graphite stem packing secondary seal
Welded seat ring or integral body seating surface
5,000 cycles bellow without failure
Non-rising stem
Application:
Refinery
Petrochemical
Solar energy power plant
Hot oil, steam supply
General Industry
