
MIRAGE®QUICK RESPONSE
EXTENDED COVERAGE
CONCEALED PENDENT
SPRINKLERS (VK632 AND VK634)
TECHNICAL DATA
Form No. F_080107 Rev 01 April 2023
Page 4 of 6
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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Approval Chart
Mirage® QR Extended Coverage Concealed Pendent Sprinklers
For Light Hazard Occupancies Only.
Maximum 175 PSI (12 Bar) WWP
Sprinkler Base
Part Number1SIN
Thread Size Nominal
K-Factor Maximum Areas
of Coverage4
Minimum Water Supply
Requirements4
Flow/Pressure
Listings and Approvals3
(Refer also to Design Criteria)
NPT
Inches
BSPT
mm U.S. metric2cULus5FM NYC
Standard Orifice
14613 VK632 1/2 15 5.6 80.6 16’ x 16’
(4.9 m x 4.9 m)
26 gpm @ 21.6 psi
(98.4 L/min @ 1.49 Bar) AW1, BX1 -- See Footnote 6.
14613 VK632 1/2 15 5.6 80.6 18’ x 18’
(5.5 m x 5.5 m)
33 gpm @ 34.7 psi
(124.9 L/min @ 2.39 Bar) AW1, BX1 -- See Footnote 6.
14613 VK632 1/2 15 5.6 80.6 20’ x 20’
(6.1 m x 6.1 m)
40 gpm @ 51.0 psi
(151.4 L/min @ 3.52 Bar) CW1, DX1 -- See Footnote 6.
Large Orifice
1453510 VK634 3/4 20 8.0 115.2 16’ x 16’
(4.9 m x 4.9 m)
26 gpm @ 10.6 psi
(98.4 L/min @ 0.73 Bar) AW1, BX1 -- See Footnote 6.
1453510 VK634 3/4 20 8.0 115.2 18’ x 18’
(5.5 m x 5.5 m)
33 gpm @ 17.0 psi
(124.9 L/min @ 1.17 Bar) AW1, BX1 -- See Footnote 6.
1453510 VK634 3/4 20 8.0 115.2 20’ x 20’
(6.1 m x 6.1 m)
40 gpm @ 25.0 psi
(151.4 L/min @ 1.72 Bar) CW1, DX1 -- See Footnote 6.
Sprinkler Temperature Ratings
A - 135 °F (57 °C)9and 155 °F (68 °C)
B - 175 °F (79 °C) and 200 °F (93 °C)
C - 135 °F (57 °C)9
D - 175 °F (79 °C)
Cover Plate Temperature Ratings7
W - 135°F (57°C) cover 231901, 234471or 231741. 234631
(large diameter), or 231791, 234821(square cover)
X - 165°F (74°C) cover 231901, 234471or 231741. 234631
(large diameter)
Cover Plate Finishes8
1 - Polished Chrome, Brushed Chrome,
Bright Brass, Antique Brass, Brushed
Brass, Brushed Copper, Painted White,
Painted Ivory, and Painted Black
Footnotes
1. Part number shown is the base part number. For complete part number, refer to current Viking price list schedule.
2. Metric K-factor measurement shown is when pressure is measured in Bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
3. This chart shows the listings and approvals available at the time of printing. Other approvals may be in process. Check with the manufacturer for any additional approvals.
4. For areas of coverage smaller than shown, use the “Minimum Water Supply Requirement” for the next larger area listed. Flows and pressures listed are per sprinkler.
5. Listed by Underwriter’s Laboratories, Inc. for use in the U.S. and Canada for Light Hazard occupancies with smooth, flat, horizontal ceilings only.
6. Meets New York City requirements, effective July 1, 2008.
7. The 135 °F (57 °C) cover has an orange label. The 165 °F (74 °C) cover has a white label.
8. Painted finish consists of Polyester Baked Enamel. Other paint colors are available on request with the same listings as the standard paint colors. Listings and approvals
apply for any paint manufacturer. Contact Viking for additional information.
9. The ENT finish is NOT available and NOT cULus Listed for 135 °F (57 °C) temperature-rated sprinklers.
10.
Part number 14535 (VK634) is not available with ENT finish.
NOTE:Custom colors are indicated on a label inside the cover assembly. Refer to Figure 1.