Bellow Sealed Globe Valve - Forged Steel Globe Valve with Bellow

General Description: Leakage from the valve gland 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 602, BS 5352,

Face to Face Dimension: ASME B16.10, EN558 (Threaded Ends and Socket Welded ends as per manufacture's specification)

Flange Connection Dimension: ASME B16.5, EN1092

BW Connection Dimension: ASME B16.25

Threaded Ends Dimension: ASME B1.20.1

Socket Welded Ends Dimension: ASME B16.11

Test & Inspection: API 598, EN12266

Products Range:

Size:  NPS 1/2" ~ 2"; DN15 ~ DN50

Rating: ANSI 150lb ~ 800lb; PN 16 ~ PN110

Body Materials:  Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel

Bellow materials:  SS304, SS316L, 1.4541, 1.4571, Inconel, Hastelloy C276

Trim: Per API 600

Design Feature:

Zero stem emission

Optional long neck design

Graphite stem packing secondary seal

5,000 cycles bellow without failure

Application:

Refinery  

Petrochemical

Solar energy power plant

Hot oil, steam supply