1) Non hammering High Velocity Pressure Vaccum Relief Valves…

Piping System Components

Vacuum Relief Valves

1) Non hammering High Velocity Pressure Vaccum Relief Valves Types HS-ISO-1, -2L, -2M, -2S, 2X, -3L, -3S, 3X, -4, -5, -6 , -7; HS-ISO-VAC-1, -2, -3, -4, -5 and -6
, 2) Flame Preventer Device conversion kit complying with IMO MSC.1/Circ. 1324

Product Description

1) Combined pressure-vacuum relief valve comprising of a non-oscillating high velocity vent and a vacuum valve., 2) Conversion kits with Apparatus Group IIB mesh elements to be used for upgrading approved vacuum valve types - HS-ISO-VAC -1, -2, and -3 from apparatus group IIA to II B on new and existing valves.

Product Ratings

Pressure Valves: Type (Minimum setting , Max. pipe length, Min. pipe size, Outlet diameter, Min. MESG value / Apparatus Group): | | HS-ISO-1 (12 kPa, 50 m, DN 50, 83 mm, 0.65 mm / IIB) | HS-ISO-2L (10 kPa, 15 m, DN 80, 116 mm, 0.65 mm / IIB) | HS-ISO-2L (12 kPa, 50 m, DN 80, 116 mm, 0.65 mm / IIB) | HS-ISO-2M (12 kPa, 25 m, DN 80, 116 mm, 0.65 mm / IIB) | HS-ISO-2S (12 kPa, 3 m, DN 80, 116 mm, 0.65 mm / IIB) | HS-ISO-2X (12 kPa, 50 m, DN 80, 116 mm, 0.65 mm / IIB) | HS-ISO-3L (12 kPa, 30 m, DN 100, 151 mm, 0.65 mm / IIB) | HS-ISO-3S (12 kPa, 6 m, DN 100, 151mm, 0.65 mm / IIB) | HS-ISO-3X (14 kPa, 34.5 m, DN 100, 151mm, 0.65 mm / IIB) | HS-ISO-4 (10 kPa, 14 m, DN 150, 185 mm, 0.65 mm / IIB) | HS-ISO-5 (12 kPa, 6 m, DN 200, 215 mm, 0.65 mm / IIB) | HS-ISO-5 (14 kPa, 3 m, DN 150, 215 mm, 0.65 mm / IIB) | HS-ISO-6 (12 kPa, 10.5 m, DN 200, 240 mm, 0.65 mm / IIB) | HS-ISO-7 (12 kPa, 6 m, DN 250, 302 mm, 0.65 mm / IIB) | HS-ISO-7 (14 kPa, 5 m, DN 200, 302 mm, 0.65 mm / IIB) | | Vacuum valves: Type (Inlet Diameter, Setting, Min. MESG value / Apparatus Group) | | HS-ISO-VAC-1 (95 mm, 3.5 kPa, 0.9 mm / IIA or 0.65 mm / IIB) | HS-ISO-VAC-2 (116 mm, 3.5 kPa, 0.9 mm / IIA or 0.65 mm / IIB) | HS-ISO-VAC-3 (150 mm, 3.5 kPa, 0.9 mm / IIA or 0.65 mm / IIB) | HS-ISO-VAC-4 (180 mm, 3.5 kPa, 0.9 mm / IIA) | HS-ISO-VAC-5 (215 mm, 3.5 kPa, 0.9 mm / IIA) | HS-ISO-VAC-6 (250 mm, 3.5 kPa, 0.9 mm / IIA)

Applicable Standards

SOLAS Regulation II-2/4.5.3.3 74/78 (Consolidated Edition 2014)
IMO MSC/Circ. 677 (30 Dec 1994) as amended by IMO MSC/Circ. 731 (12 Jul 1996), MSC/Circ.1009 (08 Jul 2001) and MSC.1/Circ.1324 (10 Jun 2009),
ISO 15364:2016

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