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15
Capacities expressed in CFH (m
3
/h) @ 0.64 sp gr gas
Model Pipe Size
Outlet Pressure
Set Point
CSA
MAX
CFH
Operating Inlet Pressure
0.5 psi
(3.4 kPa)
0.75 psi
(5.2 kPa)
1 psi
(6.9 kPa)
2 psi
(13.8 kPa)
5 psi
(34.5 kPa)
10 psi
(69.0 kPa)
325-3
3/8” x 3/8”
1/2” x 1/2”
4.0” w.c. (1.0 kPa) 150 (4.2) 160 (4.5) 190 (5.4) 220 (6.2) 220 (6.2) 300 (8.5) 320 (9.1)
7.0” w.c. (1.7 kPa) 150 (4.2) 120 (3.4) 150 (4.2) 180 (5.1) 220 (6.2) 290 (8.2) 320 (9.1)
10.0” w.c. (2.5 kPa) 150 (4.2) 100 (2.8) 120 (3.4) 150 (4.2) 220 (6.2) 280 (7.9) 320 (9.1)
325-5
1/2” x 1/2”
3/4” x 3/4”
1” x 1”
4.0” w.c. (1.0 kPa) 325 (9.2) 340 (9.6) 390 (11.0) 450 (12.7) 560 (15.9) 680 (19.3) 750 (21.2)
7.0” w.c. (1.7 kPa) 325 (9.2) 260 (7.4) 360 (10.2) 410 (11.6) 530 (15.0) 680 (19.3) 750 (21.2)
10.0” w.c. (2.5 kPa) 325 (9.2) 240 (6.8) 320 (9.1) 360 (10.2) 500 (8.5) 650 (18.4) 750 (21.2)
325-7A
1 1/4” x 1 1/4”
1 1/2” x 1 1/2”
4.0” w.c. (1.0 kPa) — 850 (24.0) 1060 (30.0) 1190 (33.7) 1600 (45.3) 2090 (59.2) 2190 (62.0)
7.0” w.c. (1.7 kPa) — 780 (22.0) 950 (26.9) 1060 (30.0) 1500 (42.5) 1860 (52.7) 2060 (58.3)
10.0” w.c. (2.5 kPa) — 650 (18.4) 860 (24.4) 990 (28.0) 1300 (36.8) 1620 (45.9) 2060 (58.3)
325-9
1 1/2” x 1 1/2”
2” x 2”
4.0” w.c. (1.0 kPa) — 1815 (51.4) 2075 (58.8) 2250 (63.7) 2660 (75.3) 3550 (100.5) 3750 (106.2)
7.0” w.c. (1.7 kPa) — 1430 (40.5) 1660 (47.0) 1960 (55.5) 2570 (72.8) 3420 (96.8) 3750 (106.2)
10.0” w.c. (2.5 kPa) — 1275 (36.1) 1450 (41.1) 1720 (48.7) 2160 (61.2) 3150 (89.2) 3750 (106.2)
325-11
2” x 2”
2 1/2” x 2 1/2”
3” x 3”
4.0” w.c. — 2800 (79.3) 3850 (109.0) 4550 (128.8) 5530 (156.6) 6120 (173.3) 9150 (259.1)
7.0” w.c. — 1940 (54.9) 3000 (85.0) 3700 (104.8) 4750 (134.5) 5650 (160.0) 9150 (259.1)
10.0” w.c. — 1440 (40.8) 2320 (65.7) 2800 (79.3) 4420 (125.2) 5400 (152.9) 9150 (259.1)
Capacities: based on 1” w.c. pressure drop, from set point**
APPLIANCE REGULATORS
Model
Number
CSA Certied
Standard
Spring
Other Springs Available
2 psi (13.8 kPa) 5 psi (34.5 kPa)
325-3
5 to 9
(1.25 to 2.25)
Plated
7 to 11
(1.7 to 2.7)
White
6 to 10
(1.5 to 2.5)
Plated
7 to 11
(1.7 to 2.7)
White
4 to 12
(1.0 to 3.0)
Violet
2 to 6
(0.5 to 1.5)
Plated
10 to 22
(2.5 to 5.5)
Red
15 to 30
(3.7 to 7.5)
Yellow
1 to 2 psi
(6.9 to 13.9)
Tagged
325-5
5 to 9
(1.25 to 2.25)
Plated
7 to 11
(1.7 to 2.7)
White
6 to 10
(1.5 to 2.5)
Plated
7 to 11
(1.7 to 2.7)
White
4 to 12
(1.0 to 3.0)
Violet
2 to 6
(0.5 to 1.5)
Plated
10 to 22
(2.5 to 5.5)
Red
15 to 30
(3.7 to 7.5)
Yellow
1 to 2 psi
(6.9 to 13.9)
Tagged
325-7A — — — —
4 to 12
(1.0 to 3.0)
Violet
2 to 5
(0.5 to 1.5)
Plated
10 to 22
(2.5 to 5.5)
Red
15 to 30
(3.7 to 7.5)
Yellow
20 to 42
(5.0 to 10.4)
Black
325-9 — — — —
4 to 12
(1.0 to 3.0)
Violet
2 to 5
(0.5 to 1.5)
Plated
10 to 22
(2.5 to 5.5)
Red
15 to 30
(3.7 to 7.5)
Yellow
20 to 42
(5.0 to 10.4)
Black
325-11 — — — —
4 to 12
(1.0 to 3.0)
Violet
2 to 5
(0.5 to 1.5)
Plated
10 to 22
(2.5 to 5.5)
Red
15 to 30
(3.7 to 7.5)
Yellow
20 to 42
(5.0 to 10.4)
Black
NOTE: See pages 56-57 for complete Spring Selection Chart.
Spring Selection Chart: inches w.c. (kPa) unless noted
C
US
®
NOTE: Maximum Individual Load: 325-3(B) is 100 CFH (2.8 m
3
/h); 325-5(B) is 325 CFH (9.2 m
3
/h); 325-7A(B) is 1250 CFH (35.4 m
3
/h); 325-9(B) is 2250 CFH (63.7).
Approval based on use as an appliance regulator. **Set points (in CFH): 325-3(B) = 50; 325-5(B) = 150; 325-7A(B) = 500; 325-9(B) = 1000; 325-11(B) = 2000.
See pages 58-59 for Regulator Sizing Requirements and Examples.