BKRi2
6Pages

Catalog excerpts

ADCA TANK BLANKETING REGULATORS BKRi2 (Low pressure reducing valve) DESCRIPTION Tank blanketing valves are commonly used in tank storage systems to prevent and protect against explosions (avoiding flammable liquids being vented from the vessel), to control product contamination against external air that may fill the vapour space, to reduce evaporation losses (consequently, production losses), to reduce internal corrosion (caused by air and moisture) and to prevent vacuum condition. The blanketing process consists in covering the stored medium, usually a liquid, with a gas (normally N2). MAIN FEATURES Compact design. Non-rising adjustment knob. FDA / USP Class VI compliant seals. STANDARD SURFACE FINISH Internal movable parts and machined surfaces: ≤ 0,76 µm Ra – SF3. Other surfaces: as casted. Ultrasonic cleaning. OPTIONS: Leakage line connection. Dome-loading. Top cap (adjustment screw with cover). Gauge connection on body. External sensing line connection (recommended for low set pressures < 10 mbar or high flow). Blanketing with vacuum. ATEX version. Air, nitrogen, argon and other gases compatible with the construction. AVAILABLE MODELS: SIZES: REGULATING RANGES: CONNECTIONS: INSTALLATION: BKRi2 – low pressure reducing valve. 1/2" and 1"; DN 15 and DN 25. 5 to 10 mbar; 10 to 50 mbar; 20 to 200 mbar; 50 to 500 mbar; 5 to 4000 mbar (dome-loading). Flanged EN 1092-1 PN 16. Flanged ASME B16.5 Class 150. CE MARKING – ATEX VERSION (ATEX – European Directive) PN 16 LIMITING CONDITIONS * Vertical installation recommended, to allow drainage, or horizontal as close to the process as possible in order to prevent long pipe sections and flow restrictions. See IMI – Installation and maintenance instructions. VALSTEAM ADCA CE MARKING – GROUP 2 (PED – European Directive) Maximum allowable pressure Maximum upstream pressure Maximum downstream pressure ** Minimum downstream pressure Maximum operating temperature 130 ºC * Other limits on request. Maximum operating conditions may be limited by the valve end connections due to normative restrictions. ** 4000 mbar with dome-loading. We reserve the right to change the design and material of this product without notice.

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ADCA AIR CAPACITIES (Nm³/h) Maximum inlet pressure 6 bar – Seat Ø8 mm SIZE INLET PRESSURE (barg) OUTLET PRESSURE (mbar) * * Outlet pressure should not be more than 50% of the inlet, in order to reach the mentioned flow rates. AIR CAPACITIES (Nm³/h) Maximum inlet pressure 12 bar – Seat Ø5 mm SIZE INLET PRESSURE (barg) OUTLET PRESSURE (mbar) * * Outlet pressure should not be more than 50% of the inlet, in order to reach the mentioned flow rates. OPTIONS LEAKAGE LINE CONNECTION GAUGE CONNECTION EXTERNAL SENSING LINE CONNECTION ATEX COMPLIANT VALSTEAM ADCA We reserve the right to change the...

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Optional dome-loading Optional leakage line connection Optional external sensing line connection Optional gauge connection VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA MATERIALS Optional leakage line connection VALSTEAM ADCA Optional dome-loading We reserve the right to change the design and material of this product without notice.

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Valve body Bottom cover * Valve seal * Valve Spring Stem guide Retaining ring Diaphragm support plate Spring cover * Lower diaphragm PTFE (Gylon) * Upper diaphragm Diaphragm plate Lower spring guide * Adjustment spring Upper spring guide Adjustment screw Corrosion resistant steel Adjustment knob Shaft ring Stainless steel * Available spare parts; ** Others on request. FDA / USP Class VI seals certificate on request. All valves have a serial number. In case of non standard valves, this number must be supplied if spare parts are ordered. TYPICAL INSTALLATION Blanketing with overpressure...

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ADCA ORDERING CODES BKRi2 Valve model BKRi2 – A351 CF3M / 1.4409 blanketing low pressure regulator Regulating range 5 to 10 mbar 5 to 4000 mbar (dome-loading) Valve seat orifice Seat diameter 8 mm Diaphragm PTFE (Gylon) Valve sealing FPM / Viton (USP Class VI on request) Adjustment knob, top cap and leakage line connection Stainless steel adjustment knob Top cap (adjustment screw with cover) Stainless steel adjustment knob w/ ISO 228 G 1/4" leakage line connection Stainless steel adjustment knob w/ 1/4" NPT leakage line connection Top cap (adjustment screw with cover) w/ ISO 228 G 1/4"...

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BKRi2 6Pages

Catalog excerpts

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BKRi2
6Pages