Promises improved performance, extended lifecycles and reduced operational costs
Tyco Valves & Controls has claimed that its new Sapag Monovar pressure control valve improves pressure regulation whilst reducing cavitation thanks to some innovative design and engineering. According to a press release issued by the company, the new valve‘s anti-cavitation characteristics make it suitable for high pressure drop applications, especially in water distribution, hydro-power stations and process industries.
Julien Massemin, product manager for the Monovar valve at Tyco Flow Control said: “We have designed and engineered our product with optimum flow characteristics to address the industry’s requirements for improved performance, extended lifecycles and reduced operation costs. Excellent anti-cavitation properties eliminate the risk of potential damage to the valve or the downstream pipe line, ensuring a cost reduction in comparison to conventional solutions.”
Monovar uses an innovative sliding plate design which incorporates one moving plate upstream, one fixed plated downstream and approximately 56 tapered control ports. By reducing water turbulence, it settles any disturbed water within two lengths of the valve diameter as opposed to the five lengths required for traditional butterfly valves, providing quick flow recovery.
Tyco claims that the aforementioned design feature, including the short face-to-face dimension in comparison to traditional control valves such as gauge valves or globe valves, enables more flexibility in design and layout, allowing for a smaller footprint upon installation, which reduces construction costs and plant size. The multi-jet design also reduces the destructive effects of cavitation and extends the lifecycle of the product.
When fully closed, the valve has a leak rate comparable to AMSE B16.104 Class III and can be operated both manually or by using pneumatic, hydraulic or electric modulating actuators. In addition it can be used at a differential pressure which is 80% of the inlet value, with a pressure range of 50 bar and a temperature range from 60 degree F to 390 degree F. Sapag also extended its size range recently up to DN 2100 (84”).
In total, 17 DN 2100 valves have recently been specified for a new ultraviolet disinfection facility in the US and are currently undergoing installation. As part of a $10 million contract, the products are a key component for accurate flow and pressure control within a new facility on the East Coast. Upon completion, the new plant will supply water to a major city, with Monovar valves controlling approximately nine billion litres/2.4 gallons of water.
Contact: Kayley Dempsey (kayley@bdb.co.uk ) or Neil Malcolm ( neil@bdb.co.uk); Tel: +44 – 161 925 4700
