Blackmer SNP Series Sliding Vane Pumps

Blackmer® SNP sliding vane pumps are suitable for handling corrosive and caustic fluids, such as acids and liquid foods. The standard SNP pumps are constructed with self-lubricated sleeve bearings and PTFE-impregnated shaft packing.

Blackmer® SNP is all stainless steel built, but the sliding vanes are non-metallic to reduce friction and eliminate galling. All SNP pumps are fitted with a removable drain plug for easy access when draining the pumps for maintenance or servicing.

Features & Benefits

Know more about the features & benefits of using SNP Series Sliding Vane Pumps.

Ductile-iron construction with metallised carbon sleeve bearings and non-metallic vanes for longer life
Shaft stuffing box accommodates most standard aftermarket mechanical seal configurations
Pump design and operation minimises shear and agitation
Adjustable relief valve protects pump against excessive pressures
Excellent self-priming and dry-run capabilities
Sustained performance and trouble-free operation
High suction lift and line-stripping capabilities
Easy to maintain – low maintenance and life cycle costs

Available Options

We customise pumps according to your specific application. Get in touch with us to know your options.

Optional commercial mechanical seal with stainless steel, carbon, and PTFE construction
Optional Triple-Lip Cartridge Seal available
Jacketed pump head option for high-temperature operation
Vane material options
Sealing options
Elastomer options
Material options
Connection options
Porting options
Mounting/baseplates
Maintenance kits/spare parts

Key Specifications

Here are the key specifications of SNP Series Sliding Vane Pumps.

Flow rates up to 1040 L/min
Differential pressures up to 10.3 bar
Working pressures up to 13.8 bar
Viscosities up to 0.2 – 6,300 Cp

Applications

Here is a list of industrial applications for which SNP Series Sliding Vane Pumps are commonly utilized.

Corrosive or caustic fluids:

Sugars
Syrups
Beer
Beet juice
Cider
Flavour extracts

Blackmer SNP Sliding Vane Pumps Range

    
    SNP High-Speed Sliding Vane Pumps
    SNP 2-3 Inch Sliding Vane Pumps
  
    Flow rate
    Up to 121 L/min
    Up to 1040 L/min
  
    Differential pressure
    10.3 bar
    10.3 bar
  
    Max working pressure
    13.8 bar
    13.8 bar
  
    Viscosity
    0.2 - 6,300 cP
    0.2 - 6,300 cP

	SNP High-Speed Sliding Vane Pumps	SNP 2-3 Inch Sliding Vane Pumps
Flow rate	Up to 121 L/min	Up to 1040 L/min
Differential pressure	10.3 bar	10.3 bar
Max working pressure	13.8 bar	13.8 bar
Viscosity	0.2 - 6,300 cP	0.2 - 6,300 cP

PRINCIPLE OF OPERATION

Blackmer sliding vane pumps use a rotor with sliding vanes to draw liquid into the pump. This rotor is located close to the wall of the cam so that a crescent-shaped cavity is formed on the opposite wall. Each rotor slot contains a sliding vane. As the rotor rotates, centrifugal force, hydraulic pressure, and push rods work together to extend each vane to the casing wall. This creates an expanding cavity on the inlet side – creating a vacuum that pulls liquid into the pump. The liquid is trapped between the vanes and the casing wall. The rotor rotation moves the liquid cavities around to the outlet side of the pump. The vanes are forced back into their slots at the outlet side, decreasing the cavity size and forcing the liquid through the outlet port.