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Casappa Whisper 20 Series (WSP & WSM)

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The Casappa Whisper results from a new and original technology, covered by international patents. This technology is incorporated in a new series of low noise gear pumps and motors. The Whisper pumps and motors solve the noise problem without affecting the size and performance.

The Whisper 20 series meets a wide range of mobile and industrial application. SAE and European mounting flanges are available exceptionally large bearings make possible the most complete range of drive shafts in spline, parallel keyed, and tapered versions to meet all SAE, DIN and European standards.

Product Specification

Pump Model Motor Model Theoretical
Displacement
Min – Max
Speed
Max Pressure Weight
WSP 20-4 WSM 20-4 0.29 in³/rev
4.8 cm³/rev
600 – 4000 rpm 4060 psi 3.80 kg
WSP 20-6,3 WSM 20-6,3 0.39 in³/rev
6.5 cm³/rev
600 – 4000 rpm 4060 psi 3.85 kg
WSP 20-8 WSM 20-8 0.50 in³/rev
8.3 cm³/rev
600 – 3500 rpm 4060 psi 3.90 kg
WSP 20-9 WSM 20-9 0.55 in³/rev
9 cm³/rev
600 – 3500 rpm 4060 psi 3.98 kg
WSP 20-11,2 WSM 20-11,2 0.67 in³/rev
11.1 cm³/rev
600 – 3500 rpm 3900 psi 4.05 kg
WSP 20-14 WSM 20-14 0.87 in³/rev
14.4 cm³/rev
500 – 3500 rpm 3770 psi 4.15 kg
WSP 20-16 WSM 20-16 1.01 in³/rev
16.6 cm³/rev
500 – 3000 rpm 3625 psi 4.30 kg
WSP 20-20 WSM 20-20 1.27 in³/rev
20.8 cm³/rev
500 – 3000 rpm 2900 psi 4.45 kg
WSP 20-25 WSM 20-25 1.58 in³/rev
26 cm³/rev
500 – 2500 rpm 2465 psi 4.70 kg
WSP 20-31,5 WSM 20-31,5 1.99 in³/rev
32.6 cm³/rev
500 – 2000 rpm 1855 psi 4.90 kg

 

(1) Minimum speeds can be reduced, maximum speeds can be increased. For specific operating conditions consult out technical department.
(2) Significantly higher intermittent pressure are allowed. Consult catalog or contact our technical department.
(3) Flow shown is minimum allowed for production pump at rated pressure with 10 wt oil at 110° Fahrenheit and can be used to calculate minimum volumetric efficiency under these conditions.
(4) Indicated torque is obtained by considering the average mechanically efficiency.
(5) Weight shown is for pump and motor with cast iron end covers. There is a weight reduction for aluminum covers.

 

Casappa – Whisper 20 Series – Datasheet

Additional Information

Manufacturer

Casappa

Hydraulic Pump Units

Gear Pump

Hydraulic Motors

Gear Motors

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