BKV2
6Pages

Catalog excerpts

ADCA SANITARY TANK BLANKETING REGULATORS BKV2 (Low pressure vent 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 wetted parts: ≤ 0,51 µm Ra – SF1. Body external: ≤ 0,76 µm Ra – SF3. Cover: internal machined and external as casted. Other surface conditions see TIS.GIA – General information ADCAPure. Ultrasonic cleaning. OPTIONS: Leakage line connection. Dome-loading. Top cap (adjustment screw with cover). Gauge connection on body. External sensing line connection. Blanketing with vacuum. Hastelloy wetted parts. ATEX version. Air, nitrogen, argon and other gases compatible with the construction. AVAILABLE MODELS: BKV2 – low pressure venting valve. SIZES: REGULATING RANGES: ASME BPE, DIN and ISO clamp ferrules. Flanged EN 1092-1 PN 16. Others on request. Assembling and packaging in a clean room certified according to ISO 14644-1. The product is end capped and sealed with recyclable thermo-shrinkable plastic film, to avoid contamination. 5 to 10 mbar; 10 to 50 mbar; 20 to 200 mbar; 50 to 500 mbar; 5 to 4000 mbar (dome-loading). 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) PN 16 CE MARKING – ATEX VERSION (ATEX – European Directive) PN 16 LIMITING CONDITIONS * Maximum allowable pressure Maximum upstream pressure ** Minimum upstream 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. Warning: Blanketing valves are no substitute for safety valves or vacuum relief valves. We reserve the right to change the design and material of this product without notice.

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ADCA AIR CAPACITIES (Nm3/h) Seat Ø21 mm SIZE INLET PRESSURE (mbar) 25% Overpressure 50% Overpressure 75% Overpressure OPTIONS LEAKAGE LINE CONNECTION GAUGE CONNECTION EXTERNAL SENSING LINE CONNECTION ATEX COMPLIANT VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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Optional dome-loading Optional external sensing and leakage line connections Optional gauge connection DIMENSIONS ASME BPE (mm) SIZE Remark: Clamp ferrules according to DIN 32676-A. DIMENSIONS ISO (mm) SIZE Remark: Clamp ferrules according to DIN 32676-B. DIMENSIONS FLANGED EN1092-1 (mm) SIZE VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

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ADCA MATERIALS VALSTEAM ADCA Optional leakage line connection 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 * Plug disc * Valve seal 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 VALSTEAM ADCA Blanketing with...

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ADCA ORDERING CODES BKV2 Valve model BV A 2 T E I X X X 0 D 25 E BKV2 – AISI 316L / 1.4404 blanketing low pressure vent valve BV BKV2 – Hastelloy C22 / 2.4602 blanketing low pressure vent valve BVH Regulating range 5 to 10 mbar 0 10 to 50 mbar 1 20 to 200 mbar 2 50 to 500 mbar 3 5 to 4000 mbar (dome-loading) A Valve seat orifice Seat diameter 21 mm 2 Diaphragm PTFE (Gylon) T Valve sealing EPDM E FPM / Viton (USP Class VI on request) V Adjustment knob, top cap and leakage line connection Stainless steel adjustment knob I Top cap (adjustment screw with cover) T Stainless steel adjustment knob...

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BKV2 6Pages

Catalog excerpts

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BKV2
6Pages