Piston pump G series

waterfor chemicalsfor liquified gas

Pneumatic Pumps | Air-Driven Liquid Pumps A low cost, reliable means of generating and sustaining static medium to high-pressures. For over 75 years, Haskel has been the leading name in pneumatic-driven liquid pumps. Haskel's pneumatic pumps are designed to provide a safe, reliable, and economical source of hydraulic pressure. A Haskel hydrostatic pneumatic pump’s robust design will efficiently convert compressed air into hydraulic power, satisfying any application need for pressurizing up a component and holding it at a set pressure for any sustained period of time. Backed by a global network of high-pressure expertise, service and support, our pneumatic pumps are consistently recognized as the most reliable in the industry. The hydrostatic pumps automatically reciprocate on a differential piston principle. A large piston driven by relatively low pressure drive acts directly upon a smaller hydraulic piston. The nominal ratio between piston sizes is indicated in the model coding and approximates to the maximum working pressure. The actual ratio is about 15% above nominal so that the pump continues to cycle when drive pressure equals nominal ratio. Initially, the pump will cycle at maximum speed acting as a transfer pump to pressurize downstream. It will cycle at a slower rate as the fluid meets resistance until it stalls at maximum output pressure. When a pressure drop downstream occurs, it will recycle as necessary in an effort to maintain maximum pressure.