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VK534 - EC/QREC Pendent Sprinkler (K11.2)

Part Number:

Viking EC/QREC Pendent Sprinkler VK534 is a thermosensitive spray sprinkler available in several different finishes and temperature ratings to meet varying design requirements. The extra-large orifice produces the flows required to meet Light and Ordinary Hazard density requirements at lower pressures than standard orifice or large orifice sprinklers. The glass bulb operating element and special deflector characteristics meet the challenges of quick response extended coverage standards. The Model VK534 is cULus Listed as standard and quick response. The special Nickel PTFE (ENT) coating has been investigated for installation in corrosive atmospheres. See technical datasheet for required design and installation criteria.

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Technical Details

Maximum Spacing : 6.1 x 6.1m
Maximum Working Pressure : 175 psi (12 bar)
Minimum Spacing : Per Standards / Listings
Model Number : VK534
Occupancy Type : Light Hazard, Ordinary Hazard
Response Type : Standard/Quick
Thread Size : 3/4" NPT (20 mm BSP)

Product Information

Coverage Area (ft / m)	Flow (gpm / lpm)	Pressure (psi / bar)
LIGHT HAZARD
16 x 16¹ (4.9 x 4.9)	30 (113.6)	7.2 (0.50)
18 x 18¹ (5.5 x 5.5)	33 (124.9)	8.7 (0.60)
20 x 20¹ (6.1 x 6.1)	40 (151.4)	12.8 (0.88)
ORDINARY HAZARD³
12 x 12¹ (3.7 x 3.7)	30 (113.6)	7.2 (0.50)
14 x 14¹ (4.3 x 4.3)	30 (113.6)	7.2 (0.50)
16 x 16² (4.9 x 4.9)	38 (143.9)	11.5 (0.79)
18 x 18² (5.5 x 5.5)	49 (185.5)	19.1 (1.32)
20 x 20² (6.1 x 6.1)	60 (227.1)	28.7 (1.98)

¹ Available only for quick response.
² Available only for standard response.
³ Design data listed above is for OH Group 1. See technical datasheet for OH Group 2 data.