PPA312
5Pages

Catalog excerpts

ADCA ADCAMAT PRESSURE OPERATED PUMP PPA312 DESCRIPTION The ADCAMat PPA312 pressure operated pump is recommended in the transfer of steam condensate, oils and other non-hazardous liquids compatible with the construction, to a higher elevation or pressure. Under certain conditions, it can drain a closed vessel under vacuum or pressure. The pump can be operated using steam, compressed air or other gases, and is manufactured in carbon steel or stainless steel. OPERATION Liquid flows by gravity into the pump through an inlet check valve, lifting the float. At this point, the motive fluid intake valve is closed while the vent valve is open. As the float reaches its highest position the motive fluid intake valve opens and the vent valve closes, allowing the motive fluid to enter the pump body. The pressure in the pump builds up just enough to overcome backpressure. The pressurized liquid opens the outlet check valve and the discharge starts. The liquid discharged may be quantified through a special counter, enabling the pump to function as a reliable flow meter. When the float reaches its lower position the motive fluid intake valve closes and the vent valve opens allowing the liquid to fill the pump once again, repeating the cycle. MAIN FEATURES CE MARKING – GROUP 2 (PED – European Directive) Hardened stainless steel wear parts. High-endurance inconel springs. Low filling head to minimize installation space. No electric requirements or NPSH issues. Suitable for hazardous environments. Low running costs. OPTIONS: USE: AVAILABLE MODELS: SIZES: CONNECTIONS: BODY LIMITING CONDITIONS * Level gauge. Stroke counters. Stainless steel construction. To lift steam condensate and other liquids compatible with the construction. PPA312S – carbon steel. Flanged EN 1092-1 PN 16. Flanged ASME B16.5 Class 150. Female threaded ISO 7 Rp (threaded flanges). Others on request. LIMITING CONDITIONS Liquid specific gravity Maximum viscosity Horizontal installation. An example is shown in Fig. 1. See IMI – Installation and maintenance instructions. MOTIVE MEDIUM: Saturated steam, compressed air, nitrogen and other gases. VALSTEAM ADCA RELATED PRESSURE Maximum motive inlet pressure Minimum motive inlet pressure Maximum operating temperature Minimum operating temperature * Pump discharge per cycle * Lower limits on request. We reserve the right to change the design and material of this product without notice.

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Q Level gauge (Optional) VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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Pump body * Cover gasket Stainless steel / Graphite * Intake valve/seat assembly Stainless steel * Exhaust valve/seat assembly Stainless steel Lever assembly Stainless steel Stainless steel * Spring assembly * Check valve Counter flanges Zinc plated steel Zinc plated steel * Available spare parts. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA SIZING To accurately size a pressure operated pump, the following information must be provided: 2. The operating medium (steam, compressed air or other gases) and its pressure. FROM STEAM TRAPS 3. The total lift or backpressure in bar the pump will have to overcome. This includes the change in fluid level elevation after the pump (0.0981 bar/m of lift), plus pressure in the return piping, plus the pressure drop caused by pipe friction and other system components. FILLING HEAD 4. Available filling head (see Fig. 1) in mm or any other dimension that allows its determination. Check valve...

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ADCA Table 4 FLOW RATE (kg/h) INSTALLATION WITH 300 mm FILLING HEAD ABOVE THE PUMP COVER Motive pressure (bar) Remark: Based on liquid specific gravity 0,9 – 1,0. Example Condensate load Filling head Motive fluid Available pressure Vertical lift after pump Return piping pressure Piping friction pressure drop Calculations: Total backpressure: 1,2 bar + (10 m x 0,0981) = 2,181 bar. Assuming steam as motive medium at a pressure of 7 bar and a total backpressure of 3 bar, then according to Table 4 a DN 80 x 50 pump, with a capacity of 4575 kg/h, is the recommended size. Filling head correction:...

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PPA312 5Pages

Catalog excerpts

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PPA312
5Pages