Group: Flowserve
Catalog excerpts
Hygienic centrifugal pump Flooded suction and self-priming TECHNICAL DATA Output: Stainless steel Casing pressure: Shaft seal: single or double mechanical seal threaded connection to DIN 11851 or flanged clockwise, viewed from drive end flooded suction, type NHK Hygienic centrifugal pumps of the NHK and SHK range are used within the food and beverage industry such as breweries and Casing pressure: 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 Flange location: Axial suction, radially vertical discharge. Connections: Threaded connections to DIN 11851 or flanged. 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 Hydraulic: Design code A for n = 1450 1/min Design code B for n = 2900 1/min by a sturdy quick-release clamp ring with sanitary grade O-ring sealing. All process-wetted parts are constructed from electropolished 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 µm (other 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 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.
Open the catalog to page 1Options 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. 2
Open the catalog to page 2Sectional drawing and materials NHK 25 Volute casing Casing sealing Impeller sealing Casing cover Mechanical seal Clamp ring Stainless steel Stainless steel Volute casing Casing cover Sealing bush Casing sealing Radial sealing Impeller sealing Impeller sealing Mechanical seal Clamp ring Shrink disk
Open the catalog to page 3Suction casing Discharge casing Suction disk Discharge disc Casing sealing Sealing sealing bush Sealing impeller Sealing shaft Mechanical seal Sealing bush Adjusting disc Shrink disc Impeller screw EPDM SiC/SiC/EPDM 1.4404 / AISI 316 L
Open the catalog to page 4Performance range
Open the catalog to page 5Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 6Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 7Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 8Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 9Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 10Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 11Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 12Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 13Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 14Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 15Performance curve Curves are valid for water at 20 °C.
Open the catalog to page 16threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1)
Open the catalog to page 17Dimensions in mm. speed size [1/min] threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 threaded to DIN 11851 small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1) small flange (FN1)
Open the catalog to page 18Dimensional drawing NHK 25 to 60 with stainless steel motor foot, base frame and cover Stainless steel motor foot and cover Stainless steel base frame and cover Dimensions in mm. Dimension motor foot Dimension base frame motor power Dimension cover
Open the catalog to page 19Dimensional drawing NHK 65 to 66 with stainless steel motor foot, base frame and cover Stainless steel motor foot and cover Stainless steel base frame and cover Dimensions in mm. Dimension motor foot Dimension base frame Dimension cover * special motor
Open the catalog to page 20Stainless steel base frame m4 Stainless steel motor foot m6 Dimensions in mm. motor speed power [rpm size [kW] 4001 4101 5001 6501 Dimensions in mm. motor speed power [rpm size [kW] 4001 4101 5001 6501 Dimensions in mm. motor speed power [rpm size [kW] 4001 4101 5001 6501 Dimension motor food Dimension base frame Dimension cover Type
Open the catalog to page 21Data regarding size – order information NHK Size Shaft sealing Casing sealing 4B = stainless X0A = single steel mech. seal X0B = double mech. seal Motor size 1 = threaded connection DIN 11851 2 = small flange (FN1)
Open the catalog to page 22Shaft sealing Casing sealing 4B = stainless X0A = single steel mech. seal X0B = double mech. seal Motor size 1 = threaded connection DIN 11851 2 = small flange (FN1) Data regarding size – order information SHK Hydraulic + Bearing Shaft sealing Casing sealing X0A = single 4B = stainless mech. seal steel Motor size Motor speed = 1450 rpm size code 80 a 80 b 90 S 90 L 100 L 100 L 112 M 132 S 132 M 160 M 160 L Motor speed = 2900 rpm size code * special motor Technische Änderungen vorbehalten.
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