Arvi Hitech

Other Details

We offer an excellent quality of Rotary actuated Control Valve designed in such a way that the valve handle is rotated to actuate the spool, as opposed to shifting the spool axially. This offers better metering control. These valves integrate a mechanical detent in the neutral position, but should be manually held in their operating positions. Relief valve pressure adjustments should not be made while the system is under pressure. These valves do not contain load checks and therefore should not be used in lifting applications unless some other means of holding the load is provided by the customer.

Features:

• Handle rotates 90° each side of center.
• No spring centering so handle will remain in position.
• Excellent metering characteristics which make it ideal for motor or cylinder applications where accurate speed control is required.
• The maximum recommended flow rate for the internal relief valve at 2,500 PSIG (172 bar) is 10 GPM (38 LPM).

Overview

The Pneumatic Spring Return Butterfly Valve uses a spring return rotary actuator. It is available in two basic versions:

• Air pressure to open / spring return close on loss of air pressure (failsafe)
• Air pressure to close / spring return open on loss of air pressure

Features & Benefits: Failsafe

• Pressure to Open / Loss of Pressure to Close
• Failsafe application to meet EU ATEX 94/9/EC defined hazardous areas
• Zone 1 and 2 applications to EN 1834 engine safety standards
• US offshore engines to Class 1 Div 2 and Div 1 safety standards
• International offshore platform engine installations

Features & Benefits:

• Petrochemical and LNG refineries
• All international areas where non-failsafe is permitted
• US offshore BOEMRE 2011 Safety Standards
• Zone 2 fire pump engine offshore applications
• Vehicles with air brakes

Common Features:

• For use in automatic or manual shutdown systems
• Operating pressure range 43.5 to 116psig (3 to 8bar)
• Slim-fit 3”, 5”, and 8” (76mm, 127mm, and 203mm) valve body
• Basic flange mount with hose adaptors available (1½” to 8” | 38 to 203mm)
• Valve bodies and discs are PTFE coated hard anodized aluminum
• Shaft and mechanisms are stainless steel

Product Application

•     Rollers
•     Conveyors
•     Augers etc.