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Type NHK and SHK

Type NHK and SHK
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Hygienic centrifugal pump Flooded suction and self-priming Type NHK and SHK TECHNICAL DATA Output: Head: Speed: Material: Temperature: Casing pressure: Shaft seal: Connections: Direction of rotation: max. 200 m3/h max. 85 m max. 3000 rpm or 1500 rpm Stainless steel max. 130 °C or 90 °C PN 16 single or double mechanical seal threaded connection to DIN 11851 or flanged clockwise, viewed from drive end APPLICATION Hygienic centrifugal pumps of the NHK and SHK range are used within the food and beverage industry such as breweries and dairies. Applications areas for these pumps include: - Brewing (Mash, wort, beer) - Dairying (milk, cream, fats) - Filtration (Filtration, separation, mixing) - Cleaning (Up & Downstream CIP) - Filling (Beer, soft drinks, juices) - Sterile and pure water Design The single stage NHK is a hygienic volute-casing pump with open impeller (for optimised pumping of shear sensitive media) rotating on a robust shaft. The thick-walled stainless steel casing is fixed by a sturdy quick-release clamp ring with sanitary grade O-ring sealing. All process-wetted parts are constructed from electro-polished AISI 316L stainless steel. Importantly, the volute casing is rolled steel whilst the casing cover is forged in order to give a heavy-duty construction. All other parts are made of AISI 304. The SHK range is a single stage, self-priming, hygienic side channel pump. All process-wetted parts are made of AISI 316L. All other parts are made of AISI 304. The NHK and SHK range are in accordance with food-grade standards 3A1 with a surface roughness Ra < 3,2 pm (other standards are optional). The Modular and compact design, the use of standard motors and several options guarantee a reliable performance within the food and beverage industry. CONSTRUCTION Casing pressure: NHK 25: max. 10 bar up to +130 °C Flange location: Axial suction, radially vertical discharge. Connections: Threaded connections to DIN 11851 or flanged. Hydraulic: Design code A for n = 1450 1/min Design code B for n = 2900 1/min Shaft sealing: Shaft sealing can be either single or double mechanical seal. Design code X0A: single mechanical seal, seal face materials SiC/SiC, elastomer EPDM Design code X0B: double mechanical seal, seal face materials product side SiC/SiC, elastomer EPDM, atmospheric side Cr-Steel/carbon, elastomer EPDM

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Options Connections: The NHK range is equipped with threaded connections according to DIN 11851 as standard. Optional small flanges are also available. The SHK range is equipped with threaded connections according to DIN 11851. Installation: a) Motor mounting (Standard execution) b) Stainless steel foot mounting c) Adjustable height stainless steel base frame Accessories: a) Stainless steel cover Frequency converter: Optionally available for motors up to 7.5 kW.

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