Wafer butterfly valve with a single-acting pneumatic actuator designed for precise flow control in industrial applications. The 316SS stainless steel disc ensures excellent corrosion resistance, while the GG25 grey cast iron body with epoxy coating provides mechanical strength and long-lasting durability.

GG25 Cast Iron Body

Robust construction with long-lasting durability

SIL Certification

Verified actuator safety according to IEC 61508 standard

Single-Acting SR Actuator

Reliable control with spring return

Wide Industrial Use

Suitable for water treatment plants, food industry, pharmaceuticals, and more

Pneumatic shut-off valves find wide application in various industrial sectors where reliability and long service life are crucial. They are primarily used in water and wastewater treatment plants, ensuring precise control of liquid flow. They also play a significant role in the food and beverage industry, where strict hygiene standards must be met. In the pharmaceutical industry, they contribute to the safe handling of chemicals and sterile media, while in the chemical industry, they withstand aggressive substances. Another important area of use is the oil and gas sector, where high resistance to extreme conditions is required.

The main advantage of these valves is their corrosion resistance, ensured by the 316SS stainless steel disc. The GG25 cast iron body with epoxy coating provides excellent mechanical strength and long service life. The valves are available with various types of pneumatic actuators, tailored to specific applications. Another advantage is their easy installation and maintenance, which reduces operating costs and ensures smooth system operation.

Single-Acting Pneumatic Actuator SR

The valve is equipped with a single-acting pneumatic actuator TORK SR, which ensures:

• Reliability with spring return in case of air failure.
• Optimised performance with low air consumption.
• Compact design for easy integration into the system.

Single-acting pneumatic actuators use compressed air to control the valve movement in only one direction (opening or closing). A spring is used to return to the initial position. When air is supplied to the actuator, the valve opens, for example, and after disconnecting the air, it automatically returns to the original (closed) position due to the spring force. This type of actuator is ideal for applications where an automatic valve response is required for safety reasons in the event of a power loss. They are widely used in various industrial sectors for their reliability and simplicity.

SIL Certification

The International Electrotechnical Commission (IEC) has issued the IEC 61108 standard, which defines safety requirements.

To obtain SIL certification, a device must meet all defined requirement categories, with SIL 3, for example, allowing the possibility of a dangerous product failure only once every 1,140 years, reflecting a very high level of reliability.

Actuator Options

On request, valves can be supplied with pneumatic actuators:

• With ATEX certification
• With PTFE coating
• Arctic design down to -60°C
• 3-point control