Hygienic centrifugal pump Flooded suction and self-priming Type NHK and SHK0 pages

Hygienic centrifugal pump
Flooded suction and self-priming
Type NHK and SHK
PUMPTECHNOLOGY NHK and SHK
133.47301.51.01 E 02/2005
TECHNICAL DATA
Output: max. 200 m³/h
Head: max. 85 m
Speed: max. 3000 rpm or 1500 rpm
Material: Stainless steel
Temperature: max. 130 °C or 90 °C
Casing pressure: PN 16
Shaft seal: single or double mechanical seal
Connections: threaded connection to DIN 11851
or flanged
Direction of rotation: 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 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 ìm (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.
flooded suction, type NHK
self-priming, type SHK
CONSTRUCTION
Casing pressure:
NHK 25: max. 10 bar up to +130 °C
NHK from 50: max. 16 bar up to +130 °C
SHK: max. 10 bar up to + 90 °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