Bellows sealed globe valves are designed to seam weld a metal barrier between fluid and air to ensure stem zero leakage. The lower end of the stainless bellows is welded to the stem to prevent process fluid erosion and the other end is placed between the body and bonnet to form a static seal. Double seal is optional, the stem packing will not leak even if bellows failure, which avoids valve plug vibration caused by stem vibration, suitable for steam, flammable, explosive, heat conduction oil, high purity, toxic and other media pipeline system applications.

We are a fully stocked manufacturer and supplier of bellow sealed globe valve and we make the valve easy to find for your need. PERFECT provides a complete line of bellow sealed globe valve for sale that is supplied to various industries. Available forms are butt weld and bolted bonnet bellows seal globe valves.  Our globe valve is available from 150 up to 1500 pressure. We can also accept the OEM design, so whether you need special valves or have a large order to place, we can provide you with the customized service for you. Please review the charts below for available sizes & pressure & material or fill the contact form below.

Features
  • Double bellows and its monitoring port is optional: A plug can be connected to space above the bellows to monitor performance;
  • Multiple materials and custom solutions, reasonable construction, double bellows seal design (bellows + packing) ensures stem zero leakage;
  • Valve stem conditioning and surface nitriding treatment make it have good anti-corrosion and anti-friction performance;
  • Sealing surface surfacing Co-based alloy, good wear resistance, corrosion resistance, friction resistance, long service life.
Specification

Bellow sealed globe valve design
Application Non-Return Flow
Design Standard
  • API 6D
  • ASME B16.34
F to F Standard ASME B16.10
Testing Standard API 598, API 6FA
End Connection Standard ASME B16.5
Size NPS 1/2 to 2

DN 15 to 50
Pressure Class Range: 600 to 1500

PN 110 to 260
Ends Butt weld
Materials
  • Body: ASTM A105 or A216 Gr WCB, Stainless steel Gade 321;
  • Disc: AISI 304, AISI 316, CF8, Super Duplex, Alloy 20, etc
  • Seat/Seat inserts: AISI 316, EPDM, Nitrile, PTFE, PEEK, etc

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