General Description:
Leakage from the valve gland (stem packing) is often a problem for environmental protection & sometime it is quite dangerous if such leakage is from a hazardous fluid or gas. FLOWTEK bellow sealed valves are designed with a bellow cartridge which welded to the valve bonnet and stem, so that when the stem up & down movement makes the bellows expands & compress. Therefore there is no sliding or rotating seals through which process fluid can leak.

Design Standard:
Design and Manufacture: API 600, BS 1414, ASME B16.34
Face to Face Dimension: ASME B16.10, EN558-1 GR.14, 15, 26
Flange Connection Dimension: ASME B16.5, ASME B16.47 / MSS SP-44
BW Connection Dimension: ASME B16.25
Pressure-Temperature Ratings: ASME B16.34
Test and Inspection: API 598, MSS SP-61
Other: NACE MR01-75, Low Emission Test

Products Range:
Size: NPS 2″~48″ Class 150; NPS 2″~36″ Class 300; NPS 2″~8″ Class 600
Rating: ANSI 150lb ~ 600lb
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Bellow Materials: SS304, SS316L, SS321, SS316Ti, Inconel, Hastelloy C276
Trim: Per API 600
Operation: Handwheel, Gear, Motorized, Pneumatic

Design Feature:
Zero stem emission
Flexible wedge
Graphite stem packing secondary seal
Threaded or welded seat ring
5,000 cycles bellow without failure

Application:
Refinery
Petrochemical
Solar energy power plant
Hot oil, steam supply
General Chemical Industry