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VALSTEAM ADCA Engineering S.A.
Catalog excerpts
ADCA VACUUM BREAKERS VB21 DESCRIPTION The VB21 vacuum breakers are simple and reliable devices that automatically relieve or “break" an unwanted vacuum condition, restoring the atmospheric pressure. This device is particularly suitable for steam heated units of small and medium volume, such as heat exchangers, heating coils, calorifiers, jacketed kettles, steam boilers, etc. USE: Saturated and superheated steam. AVAILABLE MODELS: VB21 – female threaded. VB21M – male threaded. System: vertical connection 1/2". Air inlet: horizontal connection 1/8". VB21 – female threaded ISO 7 Rp or NPT. VB21M – male threaded ISO 228 G. Vertical installation with angled connection. See IMI – Installation and maintenance instructions. LIMITING CONDITIONS: ΔP [mbar] ΔP required to open vacuum breaker: 6,13 mbar. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.
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* Special version with adapter fitting 1/2" x 3/8" ISO 228 or NPT. * Ball valve Stainless steel Adapter fitting * Available spare parts. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.
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