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Herl manufactures and distributes industrial refrigeration regulating valves, shut-off valves and safety fittings. Components are supplied globally for the food industry (e.g., wine-press houses), railways and marine as well as the petrochemical industry. Other product names under Herl include Sporlan, RS Refrigerating Specialties, Presstite, Suniso, Emkarate and Virginia.
Since 2005, the valve and fittings brand Herl belongs to Parker Hannifin Corporation, a globally operating group with current annual turnover (2014) of around 13 billion dollars. Customers now receive the proven fittings from Parker Herl, the global market leader in motion and control technologies.
As a certified contractual partner of Parker Hannifin, we advise you on products under the Herl refrigeration technology and fittings brand.
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Herl
What does Parker Herl offer?
Parker Herl provides systems and precision-engineered solutions that are used in aerospace and many other mobile and industrial applications. The Parker Corp. employed approximately 57,500 personnel in 50 countries in 2014, covering a broad range of core technologies. The applied solutions provide the customers with benefits such as increased profitability and productivity. The key features are the company's innovative capacity, the sustainability of the technologies used with regard to environmental protection, and the corporate culture, which strives to win customers and employees. The disciplined and consistent strategy also includes integrity and ethics within the company, which has a history dating back to 1918.
Herl products at Parker
Herl valves and Herl fittings can be found in various product groups. These include:
• Check valves
• Overflow valves, safety valves and dual valves
• Regulating valves
• Shut-off devices, actuators and shut-off valves
• Oil drain valves
• Small valves and sight glasses
• 3-way valves
• Sieves
The check valves include the globe and angle type, valves for liquid lines as well as for the suction and compressed gas side of compressors, stop check valves and swing check valves as well as valves made of steel and stainless steel, which are welded or connected with welded sleeves or have an FPT thread. DIN and ANSI standards are applied. Pressure relief valves, safety valves and dual pressure valves can be supplied as back pressure dependent and back pressure independent models. Herl valves are also available as 3-way double pressure valve combination and can optionally be filled with bursting discs and liquid. The regulating valves W / actuators serve as expansion valves and their continuous regulation prevents damage to compressors and pumps. The low pressure drop of Herl valves saves energy significantly. Actuators are operated electrically or pneumatically. Herl fittings are also equipped with temperature, pressure and level sensors, as well as electronic controllers.
Herl fittings
Herl fittings, which are often used in refrigeration systems, have various essential advantages during use. For example, the valve bodies are always manufactured from a single piece and there is a dramatic increase in safety due to the lack of welding seams. Parker supplies a TÜV (Technical Control Board) type certificate as well as a TÜV settings certificate for this and can guarantee the GOST approval of the fittings, which are available worldwide and are characterised by high discharge capacity. Also available are safety valve combinations that comply with the European Pressure Equipment Directive 97/23/EC. Liquid refrigerants can also be transported using Herl fittings, which have neoprene seat gaskets and operate reliably in a temperature range from -50° to +120 °C. The design is in accordance with EN ISO 4126, DIN EN 12284 and EN 13136. The flange valves are standardised as per EN 1092 (with nut). Alternatively, they comply with ANSI 16.5 class 300 RF or class 153. Companies nowadays rely on dependable solutions from Parker-Herl especially in industrial refrigeration systems, some of which are used in even more extreme temperature ranges.