www.senjusprinkler.com
Document No. U03688A • 01-06-2022
Page 2 of 8
• Approvals:
{
c
UL
US
Listed / as Quick Response
{
FM Approved / as Standard Response
• Sprinkler Identification Number (SIN):
SS9561
• Maximum Working Pressure:
175 psi (12.1 bar)
• Discharge Coefficient (Nominal K-Factor):
{
K = 5.6 GPM / psi
1/2
(80.6 LPM / bar
1/2
)
• Temperature Rating:
{
162°F (72°C) Sprinkler with 140°F (60°C) Cover Plate
{
205°F (96°C) Sprinkler with 140°F (60°C) Cover Plate
{
205°F (96°C) Sprinkler with 162°F (72°C) Cover Plate
• Color Code:
{
162°F (72°C): Uncolored
{
205°F (96°C): White
• Color Code (Cover Plate):
{
140°F (60°C): No Mark
{
162°F (72°C): White-Colored Mark
• Vertical Adjustment:
1/2 inch (12.8 mm)
• Cover Plate Finishes:
{
Standard Finishes:
White, Ivory, Beige, Brown, Black,
Nickel, Copper, Wood Grain
{
Custom Finishes:
Custom color and custom pattern
cover plates are available on special order. Contact a
Senju Sprinkler representative with any custom orders.
Please see chart on page 8 for more detail.
• Physical Characteristics:
Ref. Figures 1 and 1.1
T E C H N I C A L DATA
Figure 1:
Model RC-QR, K = 5.6
Figure 1.1:
Marking (Color Code)
It is the responsibility of the installing contractor to provide a copy of this document to the owner or their representative,
and in turn, it is the obligation of the owner to provide a copy of this document to a succeeding owner.
The owner is responsible for maintaining their fire protection system and devices in proper operating condition. The
installing contractor or sprinkler manufacturer should be contacted with any related questions.
O P E R AT I O N
In case of fire, the solder component that holds together the Cover Plate and the Retainer melts. Then the Cover Plate is
released at once. As a result, the Deflector drops down to the intended position. Two Heat Collectors are exposed to fire,
and when sufficient heat from the fire is reached, internal components of the sprinkler fall apart. This leads to the water
flow to be distributed on the affected fire area. (Ref. Figure 2)
Color Code
Cover Plate
(Top View)
Sprinkler
(Bottom View)
Marking (Deflector)
SIN: SS9561
K-Factor: K5.6
Temperature Rating:
162°F (72°C) or
205°F
(96°C)
UL Mark
FM Mark
①
③
②
④
⑤
⑥
1/2″ NPT
2-1/4″ (57.7 mm)
2-1/16″ (Ø52 mm)
Marking
Lot No.
Year of Manufacture
SIN: SS9561
K-Factor: K5.6
Temperature Rating:
162°F (72°C) or
205°F (96°C)
Control No.: 177R
UL Mark
FM Mark
2-5/8″ (Ø68 mm)
or 3-1/4″ (Ø83 mm)
or UL only: 2-5/8″ square (
□
68 mm)
①
Body (Copper Alloy)
②
Deflector (Phosphor Bronze)
③
Gasket (PTFE)
④
Fusible Metal (Solder)
⑤
Heat Collector (Copper)
⑥
Cover Plate Assembly
