1009; EN 12874 and ISO 15364. Features: • Prepared for zero-emission upgrade
. • Adjustable blow-down valve. • Full stroke/self-closing check lifts with visual ...
MA12-0485 PRES-VAC ENGINEERING ApS
HIGH VELOCITY PRESSURE VACUUM RELIEF VALVES Type HS-ISO 2388/2389
DN mm 50 65 80 100 125 150 200 250 300 350 400
High velocity vent, 3rd generation equipment, in a patented non-hammering and non-oscillating execution. Compliance with IMO MSC/Circ. 1009; EN 12874 and ISO 15364. Features: • Prepared for zero-emission upgrade • Adjustable blow-down valve • Full stroke/self-closing check lifts with visual indication • Minimum stray emission rates • Non-oscillating • No external or internal drains, completely self-draining to tank • Inspection & replacement of wear parts without removing the valve • Maintenance indicators • Adjustable pressure relief setting within pre-fixed range Material: Cast iron, bronze, stainless steel Nominal size: DN50-400 Valve type: Full lift valve Capacity: Up to 11.000 Nm3/h Approved by: Leading classification societies and by relevant flag state administrations
Type HS-2293-6
Features: • Only one moving part in each unit • Automatic self-closing check lifts • Simple, rigid design • Employs no soft seals • Protects crew from exposure by constant vertical efflux at all times • Easy maintenance • Fixed set-point providing nearly 100% accuracy
Material: Cast iron, bronze, stainless steel Nominal size: DN50-400 Valve type: Full lift valve Capacity: Up to 15.000 Nm3/h Approved by: ADNR vessels and by U.S.C.G. for VECS Requirements for Californian waters.
Certification: IMO MSC/Circ. 373/Rev.1 for gas group II A, II B-1, B-2 and II B-3
Type HSL 2383 – For high capacity applications
B mm 335 360 380 410 445 480 555 630 705 775 850
H mm 470 485 520 580 640 730 790 830 910 1050 1115
Certification: FORCE INSTITUTE according to: • IMO MSC/Circ. 677 & 1009 • CE • EN 12874:2001 • API 2000 • ISO 15364:2007
Code HS øD No. Valve inch 32 10 16 31 10 12 30 10 10 29 8 16 28 8 12 27 8 10 26 8 8 25 7 16 24 7 12 23 7 10 22 7 7 21 6 12 20 6 10 19 6 9 18 6 8 17 6 6 16 5 8 15 5 6 14 5 5 13 6M 8 12 6M 6 11 4 6 10 4 5 9 4 4 8 3 6 7 3 5 6 3 4 5 3 3 4 2 4 3 2 3 2 2 2-1/2 1 2 2
High Velocity pressure/vacuum relief vent type HS actively protects the tank, crew and environment. Tailor-made to suit each application. Type HS can be used in common and individual systems and in IG systems.
DN inch 2 2-1/2 3 4 5 6 8 10 12 14 16
øD mm 400 300 250 400 300 250 200 400 300 250 175 300 250 225 200 150 200 150 125 200 150 150 125 100 150 125 100 80 100 80 65 50
øK H mm mm 495 920 495 920 495 920 450 850 450 850 450 850 450 850 450 905 450 905 450 905 450 905 380 875 380 875 380 875 380 875 380 875 310 780 310 780 310 780 310 660 310 660 250 620 250 620 250 620 220 550 220 550 220 550 220 550 190 500 190 500 190 465 190 465
B mm 695 670 670 565 565 565 565 620 615 615 610 580 555 555 555 555 500 500 500 450 440 385 375 375 355 340 325 320 290 280 220 220
øF 565 445 395 565 445 395 340 565 445 395 315 445 395 370 340 285 340 285 250 340 285 285 250 220 285 250 220 200 220 200 185 165
P-mm Holes drilling 16 x ø22 12 x ø22 12 x ø22 16 x ø22 12 x ø22 12 x ø22 8 x ø22 16 x ø25 12 x ø22 12 x ø22 8 xø22 12 x ø22 12 x ø22 8 x ø22 8 x ø22 8 x ø22 8 x ø22 8 x ø22 8 x ø18 8 x ø22 8 x ø22 8 x ø22 8 x ø18 8 x ø18 8 x ø22 8 x ø18 8 x ø18 4 x ø18 8 x ø18 4 x ø18 4 x ø18 4 x ø18
515 400 350 515 400 350 295 515 400 350 270 400 350 325 295 240 295 240 210 295 240 240 210 180 240 210 180 160 180 160 145 125
This non-hammering high velocity pressure/vacuum relief valve is a low cost alternative for a high yielding unit for VLCCs, storage vessels & other installations, and for duplicate venting arrangements. It provides protection from fire and explosion and automatically controls the tank pressure & vacuum during loading, discharge, voyage and ballasting without manual operation and provides safe operation regardless of flow volume. It operates under freezing conditions without heating arrangments. Discharge velocity is constantly above 30 m/sec due to the controlled opening and closing phase. Features: • Few moving parts • Self-closing check-lifts • Low maintenance costs • Available with fixed size of gas-freeing cover • Easy changing of setting on pressure side • Self-draining to tank
Material: Cast iron, bronze, stainless steel Nominal size: DN100-400 Valve type: Non-hammering Capacity: Up to 13.000 Nm3/h
DN mm 150 200 250
DN inch 6 8 10
H mm 150 500 540
B mm 485 690 680
Certification: FORCE INSTITUTE according to: • IMO MSC/Circ. 677 & 1009 • CE • EN 12874:2001 • API 2000
Approved by: Leading classification societies and by relevant flag state administrations
PRES-VAC ENGINEERING ApS Svanevang 3-5, DK-3450 Allerød, Denmark • Tel: +45 4817 4055 Fax +45 4817 1788 •
[email protected] • www.pres-vac.com
Technical Representative in North America: Alan E. Jackson Tel: 905-938-8279 Cell: 905-401-5657
[email protected]
Stocking Distributors: Young & Cunningham Canada Tel: 905-688-6605 •
[email protected] W&O Tel: 904-354-3800 •
[email protected]
