Prevent reverse flow
March 2010
Valves, Actuators & Pump Control
Spirax Sarco’s DCV wafer check valves can be used in a wide variety of applications including hot and cold water systems, process line sprinkler installations and in steam and condensate lines. Installed in ‘reverse’ mode, the DCV will act as a vacuum breaker preventing any back syphoning of liquids damaging upstream equipment when the steam supply is turned off and the equipment cools.
The valves provide an effective minimal maintenance-free solution for the prevention of reverse flow in pipelines carrying most types of liquids, steam and gases. Designed to fit between two pipeline flanges, they provide a compact installation when compared size for size with conventional swing and lift type check valves. They are available in a wide range of body materials from bronze to stainless steel with seating options of stainless steel, viton or EPDM to suit most applications.
Various spring options are available including high temperature and heavy duty springs for boiler or gravity feed line applications. When boilers are shut-down and steam pressure lost, the head of water above the pump can cause flow through the pump flooding the boiler. The DCV2B fitted with a heavy duty spring and installed after the feed pump will prevent any gravity flow.
For more information contact Emily Heath, Spirax Sarco, +27 (0)11 230 1300, [email protected], www.spiraxsarco.com/za
Further reading:
Duplex valve improves continuous production at Gauteng manufacturing facility
Valves, Actuators & Pump Control
In a recent installation at a Gauteng-based manufacturer of household and personal care products, Allmech provided a tailored water treatment solution to ensure a consistent supply of soft water for steam generation, an essential element in the client’s 24/7 production cycle.
Read more...
Ultra-durable stainless steel submersible pumps
Valves, Actuators & Pump Control
KSB Pumps and Valves has launched a rugged stainless-steel submersible pump range designed for deep borehole use and other demanding freshwater and saline pumping applications.
Read more...
New wastewater pump for local municipalities and industries
Valves, Actuators & Pump Control
The latest wastewater pump from KSB Pumps and Valves is making waves in the industry due to a host of new features that provide users with an ultra-durable long service pump with fewer blockages and a lower maintenance requirement than traditional pumps.
Read more...
The critical role of check valves in fluid systems
Valves, Actuators & Pump Control
In fluid power systems, the performance and reliability of the entire operation often hinge on components that are small in size but significant in function. Among these, the check valve stands out as a fundamental yet frequently overlooked element.
Read more...
ENERGYValves expands operations
Valves, Actuators & Pump Control
ENERGYValves is expanding its operations with a new facility in Cape Town. The new premises will significantly enhance the company’s capacity to serve the Cape Town market and surrounding areas.
Read more...
Pumps lead the way with advanced technology
Valves, Actuators & Pump Control
The KSB GIW MDX pump has consistently represented a major leap forward in mill duty applications, with KSB relying on customer feedback to improving the design continuously.
Read more...
Wireless leak detection valve
Valves, Actuators & Pump Control
Designed to prevent water leakage by automatically shutting off the water supply when a leak is detected, the Runxin F104 wireless leak detection valve is one of the latest offerings from Allmech.
Read more...
Ball valves and actuators optimise HVAC performance
Schneider Electric South Africa
Valves, Actuators & Pump Control
Schneider Electric offers the full range of innovative SpaceLogic and EasyLogic ball valves and actuators. These cutting-edge products are designed to optimise HVAC system performance, ensuring comfort and energy efficiency in commercial and residential buildings.
Read more...
Alfa Laval expands hygienic valve portfolio
Valves, Actuators & Pump Control
Alfa Laval is expanding its hygienic valve portfolio by introducing the Unique SSV pressure relief valve and the Leakage Detection butterfly valve, alongside new smaller sizes of the Unique Mixproof CIP and Unique Mixproof process valves.
Read more...
Preparing pump systems for adverse weather conditions
Valves, Actuators & Pump Control
As the severity of storms in South Africa increases, so has the rush of sediment-laden water become a major issue and a significant challenge for irrigation. When sediment levels rise to just 10 grams per litre or more, the risk of pump wear and dam silting increases dramatically.
Read more...
printer friendly version