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Richter Chemie Technik
Twin piston quarter-turn actuators

Twin piston quarter-turn actuators

Product catalog summary

Overview: The document provides detailed technical specifications and features of Richter's twin piston quarter-turn actuators, designed for automation of control ball and butterfly valves in various industrial applications.

Product Features:

Rugged and maintenance-free design with a long service life due to wear-resistant components.
High safety during conversion and repairs, with a blow-out proof pinion shaft.
Adjustable pivoting angle limit from +5° to -5°.
Comprehensive accessory package available.

Fields of Application: These actuators are suitable for pneumatic remote actuation of rotary valves, flow control in chemical, pharmaceutical, petrochemical, water/wastewater, pulp production, power plant technology, metal processing, food technology, and waste disposal/recycling industries.

Design Specifications:

Pneumatic twin piston quarter-turn actuator available in single-acting (RA-1) and double-acting (RA-2) types.
Drive pinion shaft conforms to EN ISO 5211 standards.
Operating range includes control air pressure of 2-10 bar and ambient temperatures from -50°C to +70°C.
Special designs available for highly corrosive atmospheres.

Operating Medium/Quality: Requires filtered air with residual oil, dust, and water according to DIN ISO 8573-1 Class 4.

Type Code: The actuators are coded based on their function (single or double-acting), size, and pivoting angle.

Components and Materials: The actuators are constructed from anodised aluminum alloy, with options for hard anodising and teflonising. Key components include nitrile rubber O-rings, Delrin guide rings, and stainless steel parts for durability.

Torque Specifications: Detailed torque values are provided for both single-acting and double-acting actuators across various control pressures, highlighting the adaptability of the actuators to different operational requirements.

Dimensions and Weights: The document includes comprehensive tables detailing the dimensions, weights, and air consumption for different actuator sizes, ensuring precise selection and application.

Catalog excerpts

Richter Twin Piston Quarter-turn Actuators Compact Powerful Maintenance-free

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Double-acting quarter-turn actuators The actuators are the optimum automation units in technical and commercial terms for Ricther control ball and butterfly valves. They are fully refined and satisfy the high quality requirements of chemical and industrial process engineering. The interfaces to the valve or control valves and signalling units comply with DIN/EN ISO 5211 or VDI/VDE 3845/Namur. Product Features • Rugged design • Maintenance-free • Long service life due to wear-resistant components • High degree of safety during conversion and repairs of singleacting actuators thanks to the safety...

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① Actuator housing • housing of anodised aluminum alloy Optionally hard anodized and eflonised • cap aluminium alloy epoxy coated Fastened pre-loaded springs • imple and quick conversion s from double-acting to single acting and vice versa. • high safety during conversion and repair work Standardised connections • o the valve with female thread to t DIN/EN ISO 5211 • to control valves to NAMUR resp. VDI/VDE 3845 • o signalling unites to VDI/VDE t 3845 (NAMUR) ② Blow-out proof pinion shaft ③ Slide bearing for the moving parts • aintenance-free and low-wearing m operation • long service life High-quality...

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No. 5 Seal kit complete, consisting of 4, 7, 9, 14, 18 No. 6 Guide kit complete, consisting of 5, 6, 15, 17

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RATorques Torques of single-acting actuators RA-1 Minimum torques (Nm) at control air pressure PSt min and actuator type (in brackets: no. of springs) Control Pressure

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Dimensions, weights, air consumption RA-1 and RA-2 Size RA-1,-2 RA-1,-2 All dimensions in mm Viton® = TM Du Pont Richter = TM Richter Chemie-Technik GmbH Presented by: RICHTER Process Pumps &. Valves Richter Chemie-Technik GmbH Otto-Schott-Str. 2, D-47906 Kempen, Germany Tel. +49(0)21 52/146-0, Fax +49(0)21 52/146-190 www.richter-ct.com, [email protected] Publication No. 170en 11.10 © Richter Chemie-Technik GmbH. Subject to change without notice. Printed in Germany.

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Twin piston quarter-turn actuators

Twin piston quarter-turn actuators

Catalog excerpts

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