Recommended Piping | Tempest®
RECOMMENDED PIPING FOR 4441 AND 4442 TEMPEST GAS BURNERS
IMPERIAL AND METRIC EQUIVALENTS
Gas/Air Ratio Regulator (shown w/ bypass, required within 4' of burner)
Limiting Orifice Valve required within 1' of burner H
Table 1. Recommended component selection for 4441/4442 Tempest burners with StepFire TM Control.
Air Side
Fuel Side
Burner Size
A
B
C
D
E
F
G
H
I
-1 -2 -3
1¼" 1¼" 1½"
1¼" 1¼" 1½"
1¼" 1¼" 1½"
1¼" 1¼" 1½"
¾" ¾" ¾"
¾" ¾" ¾"
¾" ¾" ¾"
¾" ¾" ¾"
¾" ¾" ¾"
-4-A -4-B
2" 2" 3" 4"
2" 2" 3" 4"
2" 2" 3" 4"
2" 2" 3" 4"
1" 1"
1" 1"
1" 1"
1" 1"
1" 1"
-5 -6 -7
2½"
2½"
2½"
2½"
1¼" 1½"
1¼" 1½"
1¼" 1½"
1¼" 1½"
1¼" 1½"
2"
2"
2"
2"
2"
Legend for Table 1
FUEL E – 8697 Metering Orifice F – 7216- - BP Regulator (with bypass) G – Threaded Pipe Union H – 1807 Limiting Orifice Valve J – 8773 Flexible Pipe
AIR A – 8697/8695 Metering Orifice (optional) B – 1122 Manual Air Valve C – Air Cycle Valve D – 8770/8773 Flexible Connection or 2947 Blower Sleeve
pipe code
-04
-03
-02
-01 ½ "
-0 ¾ "
-1 1"
-2
-3
-4 2"
-5
-6 3"
-7 4"
NPS
1⁄8 "
¼ "
3⁄8 "
1 ¼ "
1 ½ "
2 ½ "
DN
6mm 8mm 10mm 15mm 20mm 25mm 32mm 40mm 50mm 65mm 80mm 100mm
NPS stands for nominal pipe size DN stands for diameter nominal
Bulletin 4441M page 16
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