Reduce your noise level and benefit from the amazing development in self-priming.
The self-priming Ws+ is designed to handle CIP (Clean In Place) return and other fluids with entrained air and foam. The unique design reduces the energy consumption and noise of traditional liquid ring pumps by using a high efficiency impeller that can be trimmed to match a specific duty. The Ws+ employs a built in eccentric air screw to form the liquid ring required for its self-priming capability.
20-90% more efficient than other liquid rings due to improved fluid flow through pump.
Performance optimized by matching impeller size to duty.
Low noise level: Due to its hydraulic design the noise level of the Ws+ is significantly lower than traditional liquid ring pumps.
3-A (optional) and EHEDG approved.
Interchangeable with W+ parts. Inventory is reduced by sharing common parts.
Less prone to damage. Small objects can pass through pump with minimal damage.
The pump is approved according to the American 3-A standard (optional). Consequently the pump can be used as a CIP as well as a first class hygienic product pump. The Ws+ series consist of 3 pump sizes.
Ws+ 20/15
Ws+ 30/30
Ws+ 44/50
At 50 Hz the Ws+ operates at a maximum pressure of 6.5 bar (94 psi) and a flow capacity of 90 m3/hour (396 GPM), while the values for a pump with a 60 Hz motor is 9.5 bar (138 psi) and 110 m3/hour (484 GPM).
Key Applications
Bakery and Confectionery
Batters
Fats & Oils
Flavorings
Sweeteners
Yeast Slurry
Syrups
Dairy
Whey
Cream
Milk
Sweetended Condensed
RO/UF Systems
Pharmaceutical/Cosmetics
Emulsions
Extracts
Slurries
Syrups
Dyes
Alcohols
Essential Oils
Chemical/Industrial
Detergents
Dyes
Soap Liquors & Solutions
Ammonium Nitrate
Propyl Alcohol
Potassium Chloride
Sodium Acetate
Model
Inlet Size mm
Oulet Size mm
Max. Impeller mm
Max. Cap. (M3/H) 2900 RPM
Max. Head (MWC*) 2900 RPM
Max. Discharge Pressure (bar)
Max. Operating Temperature
20/15
65
51
142
30
27
6
95°C
> 95°C, please contact SPX FLOW
30/30
65
51
175
50
40
8
44/50
76
51
220
90
65
13
* 10 mwc equals 1 bar
Ws+ pumps meet the requirements of the Regulation (EC) No 1935/2004 on materials and articles intended to come into contact with food and repealing Directives 80/590/EEC and 89/109/EEC.
Materials
Port Connections
Motor
Casing
SS 316L
Pumps can be supplied with all standard threads an d clamps in accordance to DS, BS, DIN, SMS and ISO as we ll as DIN flanges.
IEC metric standard, at 50/60 Hz, IP55, insulation class F. Ws+ pumps are as standard in Europe delivered with motors meeting the IE2 efficiency level in accordance to the Directive 2005/32/ EC Eco-design of Energy using Products.
Front Cover
SS 316L
Impeller
SS 316L
Air Screw and Recirculation Pipe
SS 316L
Back Plate
SS 316L
Shaft
SS 316L
Clamp Rings
SS 304
Extension Frame
SS 304
Legs
SS 304
Motor Shroud
SS 304
Shaft Seal
Carbon/Silicon Carbide
Optional: Silicon Carbide/Silicon Carbide
Elastomers
EPDM (FDA Compliant)
Optional: FPM (FDA Compliant)
The Ws+ range consists of 3 basic models – Ws+20/15, Ws+30/30 and Ws+44/50 - with pressure and flow capacities to 6,5 bar (50 Hz) and to 90 m3/h (50 Hz). The use of a conventional open impeller design ensures a flexible flow range enabling adjustment of performance to application. A Ws+ pump can be optimized the same way as a conventional end-suction centrifugal pump.