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Liquid Ring Pump



	Universal flanges DIN / EN, ANSI, JIS - for ease of installation and wide applicability
	Guide discs available in different materials Material suitable for specific application
	Performance Curve The modular SIHI^LPHX is offered in one and two stage designs in a range of different sizes and materials to meet most vacuum requirements. It offers the usual benefits of liquid ring vacuum pumps such as near isothermal compression, oil free vacuum, low noise and application flexibility.
	Central body with integrated cross over pipe Providing a more compact design and easier maintenance
	Cost effective performance For over 80 years Sterling SIHI has maintained it’s position as a leading supplier of innovative technologies in liquid ring vacuum pumps and liquid ring compressors. The comprehensive Sterling SIHI range of liquid ring vacuum pumps is available in single and two stage designs, with suction capacities up to 12000 m3/h and suction pressures in the range 33 to 1013 mbar. In addition, above atmospheric pressure these pumps can be used as compressors. The latest addition to this is the SIHI LPHX range, which is available in one and two stage variants and able to operate at 50Hz and 60Hz. It has been designed for interchangeability with the well established LPHA range and offers the lowest cost of ownership.
	Reduced distance between bearings For increased shaft stiffness and extended seal life
	Drain Plugs By continuously feeding the pump with a small amount of service liquid (usually water), the heat due to gas/vapour compression is conducted away. This also replenishes the liquid ring and ensures that it does not become saturated with process media. The condensed gas and fluid can be separated in a liquid separator (see Accessories Catalogue). Recharging the pump with service liquid at ambient temperature enables the unit to condense evacuated gases/vapours. It can therefore be used for solvent recovery. More information is provided in the accessory catalogues. The integrated solids drain permits the removal of any entrained solids whilst the pump is operating. The service liquid can, therefore, simply be recirculated. The rotation of the pump is clockwise when viewed from the drive end.
	Features and Benefits FEATURES Interchangeable with previous LPH range Complies with ATEX legislation Single and two stage Modular construction Compact design Fewer components Extensive range of sizes, materials and sealing combinations Seal accessibility Engineered systems BENEFITS ”Drop in” replacement with key parts interchangeability Certified for Category 1 and Category 2 Enhanced performance range Ease of maintenance and low inventories of spare parts Space saving Short lead times and fast deliveries Ensures optimal solution for the application Ease of maintenance Complete solution
	Construction Sterling SIHI liquid ring vacuum pumps have a simple but robust construction with the following features and benefits: Near isothermal compression Oil free, with no internal lubrication Capable of handling almost all gases and vapours Able to handle quantities of liquid “carry over” Low maintenance and safe operation Low noise and almost vibration free Available in a wide range of materials Broad range of applications O-ring sealing as standard Cavitation protection as standard Drain hole as standard Built-in solids drain Rotating metallic parts are non contacting to minimise wear ATEX compliance Sterling SIHI liquid ring vacuum pumps of the range LPH 40106, LPH 40411 and LPH 40516 are one stage pumps. They can be used as compressors up to a pressure of 1.2 bar without any modification.
	Robust Bearings 20,000 hours, L₁₀ life - maintenance free, extended MTBF - (Mean Time Between Failure)
	Videos Cavitation SIHI Principle SIHI Service Liquid