Ball Valve Actuators Shut-Off and Change-Over Valves

Product catalog summary

Overview: The document from Gruner AG outlines technical specifications and ordering details for 2-way ball valves and actuators used in water applications. It covers configurations, control signals, supply voltage, and material specifications.

Specifications:

Ball Valves: Available in 2-way configurations with female and male threads. Made from brass and stainless steel, suitable for drinking water applications compliant with EU purity standards.
Actuators: Meet DIN-VDE standards and CE principles. Control options include proportional, tri-state, and on/off, with supply voltages of 24 VAC/DC or 230 VAC.

Technical Data:

Media: Suitable for heating circuit water, process water, waste water, cooling water with up to 30% glycol, condensate, or air.
Temperature Range: -20°C to +150°C for general applications; -20°C to +82°C for drinking water valves.
Pressure Ratings: Maximum differential pressure of 350 kPa (3.5 bar), with a bubble-tight leakage rate as per DIN 3230-3.
Materials: Valve bodies are nickel-plated brass, with chrome-plated brass balls and NBR/PTFE seals.

Ordering Information: Actuators and ball valves are ordered separately, with specific order codes for different configurations and options.

Diagrams and Tables: Includes temperature-pressure diagrams and dimension tables for various valve sizes, providing critical data for installation and operation.

Technical Specifications: The product operates with a proportional control signal of (0)2...10 VDC and requires a connecting voltage of 24 VAC (50/60 Hz) / DC ±20%. It has a power consumption of 5.5 W / 7.0 VA and a 90° angle of rotation, which is bi-directional and changeable from inside. The running time for a 90° rotation is between 20 to 30 seconds, offering a torque of 15 Nm. It is maintenance-free, with a protection class of IP 54 when the cable is downward, and complies with CE standards 72/23/EWG and 89/336/EWG. Dimensions are 110 x 75 x 65 mm, operating within an ambient temperature range of -30 to +50°C. The weight is approximately 600g.

Connection and Control: Features a 900 mm cable with a cross-section of 0.75 mm². Includes a connection scheme for proportional control and allows for various control signals, including 2...10 VDC (standard), 0...10 VDC, 4...20 mA, and 0...20 mA. Feedback signals can be 2...10 VDC (standard), 0...10 VDC, 15 VDC / 5 mA, or 10 VDC / 5 mA. Functional switches should be set to the OFF position if unused.

Additional Information: Includes a characteristic curve for the 235K model, illustrating the relationship between the control signal and the resulting heat quantity. Provides contact information for GRUNER AG, located in Wehingen, Germany, and notes that technical changes and design modifications are reserved by the company.

Catalog excerpts

Ball Valve Actuators Shut-Off and Change-Over Valves-17

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