BP15SS-SBB1-A

BSK stainless steel pneumatic diaphragm pumps are high-performance fluid transfer solutions engineered for robust, safe operation in handling corrosive, high-viscosity, and hazardous media. Versatile in design with premium wetted parts, they deliver consistent, trouble-free performance for critical chemical, oil & gas, and lithium battery applications.

Pneumatic Diaphragm Pump

Pneumatic diaphragm pumps represent a new generation of high-performance fluid transfer equipment, widely recognized as one of the most innovative and reliable pumping solutions available. Powered by compressed air for safe operation, these pumps efficiently handle corrosive liquids, fluids with large solid particles, high-viscosity media, as well as volatile, flammable, explosive, and toxic substances.
BSK offers four professional series: standard pumps, high-pressure pumps, powder pumps, and FDA & 3A sanitary pumps. Each model comes with a full selection of wetted parts to suit diverse working conditions. Featuring an optimized air distribution system and stable performance, BSK pumps are widely trusted in industries including chemical, ceramic, oil & gas, food, pharmaceutical, mining, water treatment, lithium battery manufacturing, construction, and others.
BSK stainless steel pneumatic diaphragm pumps are offered in sizes 1/2″, 1″, 1 1/2″, 2″, and 3″. Wetted part options include PTFE, Santoprene, Hytrel, Nitrile (NBR), and Viton. This series is ideal for aggressive chemicals, wastewater, ceramic slurry, filter press systems, crude oil transfer, and other demanding applications.

Performance Specifications

Pump Model
BP15SS
BA25SS
BA40SS
BA50SS
BA80SS
Process Connection
1/2″
1″
1 1/2″
2″
3″
Allowable Air Pressure
0.15–0.69 MPa
0.1–0.83 MPa
0.1–0.83 MPa
0.1–0.83 MPa
0.1–0.83 MPa
Max. Flow Rate (lpm)
45.3
192
378.5
667
903
Displacement per Cycle (L)
0.14
0.87
2.83
3.78
7.67
Max. Discharge Head (m)
70
60
80
80
80
Max. Dry Suction Lift (m)
4.1
6.7
6.7
6.2
5.3
Max. Solid Passage (mm)
2.5
3
6
7
9
Weight (kg)
5.5
14.5
30
53
95

Performance Curve

 

Diaphragm Material Selection

+ Excellent √ Good ! Fair X Poor
Diaphragm Material
Service Life
Wear Resistance
Chemical Compatibility
Thermal Stability
Min. Temp
Max. Temp
PTFE
+
+
+
+
4.4℃
104℃
Santoprene
+
+
√
√
-40℃
107.2℃
Hytrel
+
+
√
√
0℃
79.4℃
Viton
X
!
+
+
-40℃
176.6℃
Nitrile (NBR)
+
√
!
!
-12℃
82℃

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