PS47
6Pages

Catalog excerpts

ADCA PILOT OPERATED PRESSURE SUSTAINING VALVES PS47 DESCRIPTION The ADCA PS47 pilot operated pressure sustaining valves are designed for use with steam, compressed air, nitrogen and other gases compatible with the construction materials. The PS47 accurately senses upstream pressure and acts to precisely control it to a minimum or disperse excess presssure. MAIN FEATURES Precise control of upstream pressure from 0,07 bar to 17 bar. Robust steel or stainless steel construction. Guided piston and valve stem. Hardened plug. OPTIONS: Soft sealing. Low pressure top. Dome loaded version. Bottom cover drain connection. Stellited plug and seat. External sensing connection. Saturated steam, compressed air and other gases (Group 2) compatible with the construction (except oxygen). AVAILABLE MODELS: PS47 – steel versions for steam. PS47i – stainless steel versions for steam (only available from DN 15 to DN 50). PS47G – steel versions for compressed air and gases. PS47Gi – stainless steel versions for compressed air and gases. Flanged EN 1092-1 PN 40. Flanged ASME B16.5 Class 150 or 300. Female threaded ISO 7 Rp or NPT. Socket weld (SW) ASME B16.11. Horizontal installation. See IMI – Installation and maintenance instructions. In steam applications, a “Y” strainer, humidity separator and steam trap should be installed upstream of the valve. CE MARKING – GROUP 2 (PED – European Directive) CLASS 150 1/2" to 2" – VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA LIMITING CONDITIONS Valve model Body design conditions Maximum upstream pressure Minimum upstream pressure * Maximum downstream pressure Maximum operating temperature Maximum hydraulic factory valve body test * 0,07 bar with low pressure top (limited to 7 bar maximum inlet pressure). Remark: Pressure and temperature limiting conditions may change if “G” version for compressed air and gases is chosen or soft sealing/piston rings are used. Warning: A pressure sustaining valve is not a safety relief valve and must not be used for that purpose! REGULATING RANGES SPRING COLOUR Regulating...

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ADCA MATERIALS Detail A Pilot valve VALSTEAM ADCA Detail A Pilot valve (soft) Detail B Main valve (soft) We reserve the right to change the design and material of this product without notice.

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Valve body Pilot valve body Low pressure pilot valve body Adapting flange Spring cover * Main valve seat * Main valve plug * Main valve plug (soft) AISI 316 w/ PTFE/GR; Rulon AISI 316 w/ PTFE/GR; Rulon * Main valve spring Brass / Bronze Brass / Bronze Piston guide * Piston Rings Piston liner Bottom cover * Bottom cover gasket Stainless steel / Graphite Stainless steel / Graphite * Diaphragm gasket Stainless steel / Graphite Stainless steel / Graphite * Low press. diaphragm gasket Stainless steel / Graphite Stainless steel / Graphite * Pilot valve gasket Stainless steel / Graphite Stainless...

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ADCA CAPACITY TABLE SATURATED STEAM (kg/h) INLET (barg) OUTLET (barg) 16 207 416 717 1217 1608 2824 255 528 889 Remarks: A pressure sustaining valve is usually sized to the minimum allowable pressure drop across the valve. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA ORDERING CODES PS47 Valve model PS47G – compressed air and gases Body material AISI 316 / 1.4401 stainless steel Options Standard valve with internal sensing line Valve for external sensing connection Standard diaphragm Green spring – 0,35 to 2 bar – single diaphragm Blue spring – 1,5 to 5,5 bar – single diaphragm Red spring – 3,5 to 8,5 bar – double diaphragm Black spring – 7 to 17 bar – double diaphragm Dome loaded – 0,35 to 4 bar – single diaphragm a) Dome loaded – 2 to 17 bar – double diaphragm a) Piston rings b) Bronze Standard valve Standard metal to metal with hardened plug...

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PS47 6Pages

Catalog excerpts

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PS47
6Pages