WOMA-Pumps WOMA High-Pressure Water Plunger Pumps WOMA designs, manufactures and markets high-pressure plunger pumps. All pumps can be driven either by combustion engines... with power ratings up to 1000 hp, operating pressures up to 43,000 psi, and water flow rates up to 443 gpm. The WOMA pump line is characterized by the following features: Heavy duty... available. Pump head with coaxially arranged valves and free from alternating stresses. Hydrostatically armored pressure sleeves. Plunger set with hard metal/ceramic plungers, dynamic...