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ManualsBrandsMaxitrol ManualsHeating Supplies15-30" WC Yellow Spring For 325-5A

DRAFT 09.18.2013

Model

Number

Pipe Size

Flow Rate - CFH (m

/h)

CSA

MAX

100

(2.83)

200

(5.66)

300

(8.50)

400

(11.33)

500

(14.16)

600

(16.99)

750

(21.24)

1000

(28.32)

SR400

3/8” x 3/8”

150

(4.2)

0.33

(0.08)

1.30

(0.32)

--- --- --- --- --- ---

1/2” x 1/2”

170

(4.8)

0.27

(0.07)

1.10

(0.27)

--- --- --- --- --- ---

SR500

1/2” x 1/2”

360

(10.2)

0.08

(0.02)

0.30

(0.08)

0.68

(0.17)

1.20

(0.30)

--- --- --- ---

3/4” x 3/4”

400

(11.2)

0.05

(0.01)

0.21

(0.05)

0.47

(0.12)

0.83

(0.20)

1.30

(0.32)

--- --- ---

SR600

3/4” x 3/4”

600

(16.8)

---

0.09

(0.02)

0.20

(0.05)

0.36

(0.09)

0.56

(0.14)

0.81

(0.20)

1.25

(0.31)

---

1” x 1”

600

(16.8)

---

0.07

(0.02)

0.16

(0.04)

0.29

(0.07)

0.45

(0.11)

0.66

(0.16)

1.00

(0.25)

1.75

(0.44)

NOTE: Capacities expressed in CFH (m

/h) @ 0.64 sp gr gas

CSA maximum capacities vary with spring range and pipe size. Please contact Maxitrol directly for CSA maximums.

See pages 58-59 for Regulator Sizing Requirements and Examples.

Model Available Springs

SR400

Maximum

3 to 5

(0.75 to 1.25)

S. Steel

2.5 to 3.5

(0.62 to 0.87)

White

4 to 6

(1 to 1.5)

S. Steel

3 to 5

(0.75 to 1.25)

White

---

Minimum

0.3 to 1.2

(0.07 to 0.3)

Plated

0.3 to 1.2

(0.07 to 0.3)

Plated

1 to 2.8

(0.25 to 0.7)

Blue

1 to 2.8

(0.25 to 0.7)

Blue

2.5 to 4

(0.62 to 1)

Black

SR400-2*

Maximum 7.5 to 12 (1.87 to 3) - Blue

SR500

Maximum

3 to 5

(0.75 to 1.25)

S. Steel

1.5 to 3.5

(0.37 to 0.87)

White

3.5 to 6

(0.87 to 1.5)

S. Steel

2 to 4.5

(0.5 to 1.12)

White

---

Minimum

0.3 to 1.2

(0.07 to 0.3)

Plated

0.3 to 1.2

(0.07 to 0.3)

Plated

1 to 2.8

(0.25 to 0.07)

Plated

1 to 2.8

(0.25 to 0.7)

Blue

---

SR500-2*

Maximum 7.5 to 12 (1.87 to 3) - Black

SR600

Maximum

3 to 5

(0.75 to 1.25)

S. Steel

2.5 to 4

(0.62 to 1)

Plated

4 to 6

(1 to 1.5)

S. Steel

3 to 5.5

(0.75 to 1.37)

White

---

Minimum

0.5 to 1.2

(0.12 to 0.3)

Plated

0.3 to 1.2

(0.07 to 0.3)

Plated

1 to 2.8

(0.25 to 0.7)

Plated

1 to 2.8

(0.25 to 0.7)

Blue

---

* For LP application - may be used with any minimum spring.

NOTE: See pages 56-57 for complete Spring Selection Chart.

Capacities and Pressure Drop: inches w.c. (kPa)

Spring Selection: inches w.c. (kPa)

APPLIANCE REGULATORS