Bellows Seal Control Valves

Control Valves for Chlorine Service

Control Valves for Hazardous Chemical Applications


Meets the requirements of body wall thickness of Euro Chlor GEST 17/492.

Series 5801 Bellows Seal Globe Control Range Appoved by Euro Chlor

Designed from inception for hazardous Chemical Applications


  • Throttling and control function with zero leakage to atmosphere
  • Control valve body with long stroke
  • Special trims
  • Field proven designs
  • Open bellows design
  • All testing performed
  • Optional Flow characteristics
  • Sizing software
  • Variety of actuators, positioners and accessories


Our bellows seal control valve product combines the knowledge and know-how of hazardous chemical valves, designed for isolation and zero leakage to the
environment, with control valves designed for modulating applications. This product has been designed with the safety features associated with the latest Euro Chlor GEST 17/492 in mind whilst maintaining the functionality of control valves such as longer stroke to provide a better flow modulation, smoother flow paths and a better pressure recovery factor compared to that of an ON/OFF globe valves. The body assembly has a wider chest to allow the use of more sophisticated trims such as multi-stage low noise for gases and anti-cavitation for liquid applications. Our control valve sizing program enables us to offer the correct choice of valve for your application to give a controlled performance and longer service life.

Series 5601 Packed Gland and Series 5801 Bellows Seal Control Valves


1” to 12” (DN25 to DN300)

Body Material cast –

LCC C Steel, A351 CF8M St Steel, A494 M35-1 NiCu, CW12MW NiCrMoW, CY40 NiCrFe.

End connections —

Class 150, Class 300, Class 600, PN16, PN25, PN40.


Severe services for hazardous chemicals including the following fluids:

  • Cl2    Chlorine - Liquid and Gas
  • Clo2    Chlorine Dioxide
  • HF    Hydrogen Fluoride Liquid and Gas
  • COCl2    Phosgene
  • AHCI    Anhydrous Hydrogen Chloride
  • EDC    Ethylene DiChloride
  • VCM    Vinyl Chloride Monomer
  • NH3    Liquid Ammonia
  • HCN    Hydrogen Cyanide
  • TiCl4    Titanium Tetrachloride (Tickle)

Features of Bellows Seal Control Valve


Throttling and control function with zero leakage to atmosphere, reliable process isolation and robust designs for ease of operation and maintenance.
Control valve body with long stroke to enable good fluid control from the minimum to maximum process conditions.
Special trims designed to suit specific applications:

  • variety of options available including contoured, single-stage and multi-stage catering for a variety of fluid conditions including noisy gases and flashing/ cavitating liquids.

Field proven designs and decades of service experience in a wide range of applications in the chemical, oil, gas, petrochemical and power industries

  • 2 or 3 ply UNS N10276 bellows and UNS N10276 end rings.

Open bellows design for ease of examination and maintenance and no bellows damage due to trapped corrosion products.
All testing performed to the requirements of the latest Euro Chlor GEST 17/492, ANSI B16.34 and ANSI/ FCI 70.2.
Optional Flow characteristics: Linear, Equal Percentage and specials.
Sizing software for fluid flow capacity and noise calculations in accordance with IEC 60534-2-1 and IEC 60534-8-3 respectively.
Variety of actuators, positioners and accessories as per end-user’s requirements.
Pneumatic spring diaphragm/ piston-cylinder and electro-hydraulic actuators. Pneumatic, electro-pneumatic and SMART(HART) and Fieldbus enabled positioners. Limit switches and solenoid valves.

Hunt and Mitton:

Hunt & Mitton has a long history of producing valves for hazardous chemicals dating back to the 1950s. We believe that better design, material choices and attention to detail in manufacture, equates to a lower cost of ownership for our customers.
H & M Valve Company Ltd.
Cheadle Place Business Centre
United Kingdom

Registered in England and Wales
No: 10746148
VAT Reg: GB 270 8030 25