Catalog excerpts
ADCA PRESSURE OPERATED PUMP POP-LC The ADCAMat POP-LC low capacity 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 Compact design. 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. Pump mechanism with 360º rotation (limited to flange bolt holes). CE MARKING – GROUP 2 (PED – European Directive) Level gauge. Stroke counter. To lift steam condensate and other liquids compatible with the construction. SIZES: CONNECTIONS: ALLOW. RELAT. PRESS. TEMP. POP-LCS – carbon steel. POP-LCSS – stainless steel. ALLOW. RELAT. PRESS. TEMP. 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 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 BODY LIMITING CONDITIONS * AVAILABLE MODELS: Maximum viscosity Maximum motive inlet pressure Minimum motive inlet pressure Maximum operating temperature Minimum operating temperature * Pump discharge per cycle We reserve the right to change the design and material of this product without notice.
Open the catalog to page 1ADCA L T (Supply) V (Counter) VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.
Open the catalog to page 2Pump body * Cover gasket Stainless steel / Graphite Stainless steel / Graphite * Intake valve/seat assembly Stainless steel Stainless steel * Exhaust valve/seat assembly Stainless steel Stainless steel Lever assembly Stainless steel Stainless steel Stainless steel Stainless steel * Spring assembly * Check valve Counter flanges Zinc plated steel Zinc plated steel * Available spare parts. SIZING To accurately size a pressure operated pump, the following information must be provided: 1. The condensate load (kg/h). 2. The operating medium (steam, compressed air or other gases) and its pressure....
Open the catalog to page 3ADCA 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 of 0,9 to 1,0. Example Condensate load Filling head Motive fluid Available pressure Vertical lift after pump Return piping pressure Piping friction pressure drop Filling head correction: With 150 mm filling head the correction factor from Table 2 is 0,7. The corrected capacity is thus 1540 kg/h x 0,7 = 1078 kg/h. VALSTEAM ADCA Calculations: Total backpressure: 1,2 bar + (10 m x 0,0981) = 2,181 bar. Assuming steam as motive medium at a...
Open the catalog to page 4ADCA TYPICAL APPLICATIONS CONDENSATE RECOVERY IN A OPEN LOOP SYSTEM FILLING HEAD Heat exchanger Check valve Steam trap Shut-off valve Vacuum breaker The pump transfers high temperature condensate without cavitation problems. The vent line must be unrestricted and self draining to the receiver (Fig. 1). FROM STEAM TRAPS The pump is installed in a closed loop with its vent connected to a pressurized reciever (Fig. 2). When steam pressure is sufficient to overcome backpressure, the steam trap operates. As soon as, e.g., the equipment’s control valve starts to modulate, the steam pressure will...
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