RP45
8Pages

Catalog excerpts

ADCA PRESSURE REDUCING VALVE RP45 (EN) DESCRIPTION The ADCA RP45 series pressure reducing valves are single seated, bellows sealed controllers that operate without auxiliary energy. Designed for use with steam, compressed air, and other gases compatible with the construction. These valves are particularly suitable for reducing steam pressure in all energy and process systems where pressures must be kept under control. MAIN FEATURES Specially designed high durability bellows, providing pressure balancing and frictionless plug stem. Robust construction (fit-and-forget). Suitable for use with high pressure turndowns. Interchangeable actuators and adjustment springs. OPTIONS: AVAILABLE MODELS: Soft sealing in PTFE/GR for use with steam. Soft sealing in nitrile rubber for use with air and gases. Low-noise flow divider. Sensing pipe on body. RP45G and RP45GT or N – SG iron. RP45S and RP45ST or N – carbon steel. RP45i and RP45iT or N – stainless steel (only available from DN 15 to DN 100). Suffix T: soft sealed with PTFE/GR. Suffix N: soft sealed with nitrile rubber. DN 15 to DN 150. RP45G – Flanged EN 1092-2 PN 16. RP45S and RP45i – Flanged EN 1092-1 PN 16 or PN 40. Standard PN 16 DN 65 flanges are supplied with 4 holes. 8 holes, according to EN 1092-1/-2 on request. Steam, compressed air and other gases compatible with the construction. Limited use with liquids. Consult manufacturer before installing the valve with liquids. AVAILABLE ACTUATORS: VALSTEAM ADCA RP45 DN 15 to DN 100 with sensing pipe on body CE MARKING – GROUP 2 (PED – European Directive) PN 16 We reserve the right to change the design and material of this product without notice.

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ADCA LIMITING CONDITIONS RP45G RP45S RP45i Valve model Body design conditions Maximum upstream pressure Maximum downstream pressure (DN 15 to 100) Maximum downstream pressure (DN 125 and 150)* Minimum downstream pressure Maximum operating temperature Maximum reducing ratio Rangeability Maximum hydraulic factory valve body test * Stainless steel models are not available in these sizes. Remark: Other soft materials and temperature limits on request. Actuator model Maximum operating pressure (bar) Maximum operating temperature * The water seal pot must be installed in the sensing pipe when...

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ADCA CORRECTION FACTORS Pressure ratio: The capacities given in the “Saturated steam capacity table” are applicable in scenarios where P2 < 0,7 P1. In the remaining scenarios a correction factor must be applied: PRESSURE RATIO * P2 / P1 * Pressure ratio in bar abs (barg + 1) Superheated steam: When the medium is superheated steam, instead of saturated steam, a correction factor must also be applied. The required mass flow must be multiplied by the following factor: Vh, where Vh = specific volume of superheated steam, and Vs Vs = specific volume of saturated steam. ACTUATOR AND SPRING...

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ADCA HOW TO SIZE (USING STEAM TABLE) Example Required saturated steam capacity: 300 kg/h; Upstream pressure: 3 bar; Required downstream pressure: 2 bar. Solution: First determine correction factor for pressure ratio: (2+1) / (3+1) = 0,75 → f = 1,25 Then multiply the given capacity: 300 × 1,25 = 375 kg/h Afterwards, refer to the cell with the number “3” in the column “INLET” of the saturated steam capacity table. In that line, the values for selection of the pressure reducing valve size can be found. In this particular scenario, a value equal to or higher than 375 kg/h is required, and the...

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DIMENSIONS – ACTUATOR (mm) ACTUATOR VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA MATERIALS FLOW VALSTEAM ADCA Detail C (DN 125 and DN 150) We reserve the right to change the design and material of this product without notice.

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ADCA MATERIALS – VALVE POS. Nº 1 * Valve plug Stem guide Stem guide Compensating spring Split ring Guide tube Bellows gasket Stainless steel / Graphite Stainless steel / Graphite Body gasket Stainless steel / Graphite Stainless steel / Graphite Piston body extension (RP45G and RP45S) Piston body extension (RP45i) * Adjustment spring Spring steel Spring steel Lower spring plate (RP45G and RP45S) Lower spring plate (RP45i) Upper spring plate Threaded tube Ball bearing Zinc plated steel Zinc plated steel Bellows housing Pillars flange Zinc plated steel Belleville washer * Available spare...

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C series MATERIALS – ACTUATOR POS. DESIGNATION Nº 51 52 52A 53 54 54A Lower diaph. A216 WCB / 1.0619 chamber Upper diaph. A216 WCB / 1.0619 chamber Spacer ring Neoprene reinforced Neoprene reinforced Neoprene reinforced Neoprene reinforced Neoprene reinforced * Diaphragm polyamid polyamid polyamid polyamid polyamid Flow restrictor Vent screw Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel Zinc plated steel...

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RP45 8Pages

Catalog excerpts

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RP45
8Pages