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Richter Chemie Technik
bellows-sealed shut-off and control valves

bellows-sealed shut-off and control valves

Product catalog summary

Overview: The document provides detailed specifications and features of Richter's HV and HVR bellows-sealed shut-off and control valves, which are manually actuated and lined with pure PFA, with an option for antistatic lining. These valves are designed for high chemical resistance and are suitable for use in environments requiring hermetic sealing.

Specifications:

Lining: Made of pure PFA, offering universal chemical resistance and high permeation resistance. The lining thickness is guaranteed between 5-6 mm, with vacuum-proof anchoring.
Body: Constructed from ductile cast iron EN-JS 1049/ASTM A395, capable of absorbing system and pipe forces.
Bellows: Standard PTFE bellows are used for pressures up to 10 bar, with options for heavy-duty PTFE or Hastelloy® bellows for extreme conditions.
Safety Features: Includes a safety stuffing box adjustable from the outside and a leak monitor connection option for critical media.
Operating Range: Temperature range from -60 to +180 °C and pressure range from 0.1 mbar to 16 bar.

Design and Functionality:

The valves are designed as sealless bellows-sealed globe control and shut-off valves, lined with fluoroplastic and fitted with a safety stuffing box as standard.
They can be equipped with control plugs for genuine control functions, with replaceable body, seat, and bellows for optimal adaptation and maintenance.

Applications:

Used as shut-off valves where hermetic tightness is required, complying with the German Clean Air Code.
Suitable for biotechnology and pure media applications, with anti-adhesive lining and seamless integration for pharmaceutical and fine chemical industries.

Product Features:

Available with kvs values from 0.01 to 155 m3/h, with options for V-control plugs for small kv values.
External corrosion protection with epoxy-coated body and stainless steel components.

Components and Materials:

Body and cover made of ductile cast iron with PFA lining, plug and seat made of modified PTFE, and various stainless steel components for durability.
Special designs available for highly permeating media and biotechnology applications.

Dimensions and Weights: Detailed dimensions and weights are provided for various valve sizes, with face-to-face lengths according to ISO and ANSI standards.

Catalog excerpts

bellows-sealed shut-off and control valves-1

– manually actuated – Lining pure PFA, optionally antistatic Bellows sealing, safety stuffing box Heavy-duty bellows - for permeating media - p to 16 bar (235 psi) and u 180 °C (360 °F) Richter bellows-sealed shut-off and control val

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bellows-sealed shut-off and control valves-2

Bellows-sealed shut-off and control valves Fields of application As a shut-off valve, the HV with on/off plug is preferably used where a ball or butterfly valve, for example, cannot be deployed owing to the requirement for hermetic tightness: In conjunction with the standard safety stuffing box, the valve complies with the German Clean Air Code (“TA Luft”). Equipped with an equal percentage or linear control plug, the HVR can perform a genuine control function. The body, seat and bellows can be replaced and varied independently, permitting optimum adaptation to the operating conditions in question...

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bellows-sealed shut-off and control valves-3

Heavy-duty bellows and safety stuffing box offer optimum reliability Option: Heavy-duty bellows - for highly permeating media - for higher pressures and temperatures • 2.5 mm wall thickness for the bellows! • pressure to 16 bar (235 psi), see diagram • i nternal stainless steel support rings - support bellows’ convolutions individually - ensure the distribution of the motion on all convolutions and their flexibility - PTFE/carbon support rings in case of extreme permeation for pressures to 10 bar (145 psi) on request for series HVR with control plug DN DIN/ISO (mm) * I f a U-plug is used, the...

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bellows-sealed shut-off and control valves-4

kvs Cv-values, components Dimensions and weights for HV and HVR Face-to-face lengths ISO 5752 series 1 (DIN EN 558-1 series 1)*, flanges ISO 7005-2/PN16 (DIN EN 1092-2)* Face-to-face lengths ANSI/ISA 75.08.01 Cl. 150+300, flanges ASME B16.5 Cl. 150+300 RF HV Flow rates for series with on-off plug DN V2”: flanges with tapped bore not to ANSI/ISA * Optionally also antistatic (PFA-L) lining ** only with option “leak monitor connection” Special designs Version for “biotechnology/pure media” for the pharmaceutical and fine chemical industries, elec- tronic chemicals, fermentation etc., suitable for...

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bellows-sealed shut-off and control valves

bellows-sealed shut-off and control valves

Catalog excerpts

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