Section III. Installation

12

 

 

GAS PIPE SIZING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PIPE SIZING FOR GAS LINE CONNECTIONS

 

 

 

 

 

 

 

 

 

MAXIMUM EQUIVALENT PIPE LENGTH (Ft.)

 

 

 

 

 

 

 

 

 

 

 

Natural Gas at 1000 B.T.U. per Cubic Foot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Propane Gas at 2500 B.T.U. per Cubic Foot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/2”

3/4”

1”

1-1/4”

1-1/2”

 

2”

2-1/2”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODEL

NAT

PRO

NAT

 

PRO

NAT

PRO

NAT

PRO

NAT

 

PRO

 

NAT

PRO

NAT

PRO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200

-

20’

30’

 

80’

125’

250’

450’

600’

-

 

-

 

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250

-

10’

20’

 

50’

70’

150’

250’

500’

600’

 

-

 

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300

-

-

10’

 

30’

50’

100’

200’

350’

400’

 

600’

 

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

-

-

-

 

10’

20’

60’

100’

150’

200’

 

450’

 

400’

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“RESIDENTIAL” PROPANE GAS 2 STAGE REGULATION

In many Propane gas line installations, the gas supplier and/or installer will utilize a two stage regulation process where by at the supply tank they will install the first stage gas regulator, which would be at a higher pressure, usually 10 psi. This higher pressure allows for a much longer distance and in a much smaller pipe size. Then within a short distance of the pool heater, usually around 24 inches, they will install a second regulator, which is the second stage, and this would be set at the required inlet pressure of the heater.

See “Gas Pressure Requirement Charts”

Stage One "High Pressure" Gas Pipe Sizing

10 PSI @ 2500 B.T.U. Per CU. FT.

MAXIMUM EQUIVALENT PIPE LENGTH

Model

0 to 50 Ft.

50 to 100

Ft.

100 to 150 Ft.

 

 

 

 

 

 

 

200 through 400

1/2 in.

1/2 in.

 

1/2 in.

 

 

 

 

 

 

 

 

 

 

Table 3.

Stage Two "Low Pressure" Gas Pipe Sizing

Stage 2 set at 14 in. W.C.

MAXIMUM EQUIVALENT PIPE LENGTH

Model

0 to 10 Ft.

10 to 20 Ft.

 

 

 

200 through 400

3/4 in.

3/4 in.

 

 

 

 

 

Table 4.

“RESIDENTIAL” NATURAL GAS 2 STAGE REGULATION

In many Natural gas line installations, the gas supplier and/or installer may utilize a two stage regulation process where by at the streets main gas supply they will install the first stage gas regulator, which would be at a higher pressure. This higher pressure is usually set at 2 psi or 5 psi and can be for long distances and in a much smaller pipe size. Then within a short distance of the pool heater, generally around 24 inches, they will install a second regulator, which is the second stage. This second stage regulator would be set at the minimum operating pressure for the heater. For “Natural Gas Pentair Pool Heaters” the minimum is 7 inches W.C.

See “Gas Pressure Requirement Charts”

Stage One "High Pressure" Gas Pipe Sizing

2 PSI @ 1000 B.T.U. Per CU. FT.

MAXIMUM EQUIVALENT PIPE LENGTH

 

Model

0 to 50 Ft.

50 to 100

Ft.

100 to 150 Ft.

 

 

 

 

 

 

 

 

200

through 300

1/2

in.

1/2

in.

 

1/2 in.

 

 

 

 

 

 

 

400

3/4 in.

3/4 in.

 

3/4 in.

 

 

 

 

 

 

5 PSI @ 1000 B.T.U. Per CU. FT.

 

 

 

 

 

 

 

 

200

through 400

1/2

in.

1/2

in.

 

1/2 in.

 

 

 

 

 

 

 

 

Table 5.

Stage Two "Low Pressure" Gas Pipe Sizing

Stage 2 set at 7 in. W.C.

MAXIMUM EQUIVALENT PIPE LENGTH

Model

0 to 10 Ft.

10 to 20 Ft.

 

 

 

 

200 through 300

3/4

in.

3/4 in.

 

 

 

 

400

3/4

in.

1 in.

 

 

 

 

Stage 2 set at 7 in. W.C.

200 through 400

3/4 in.

1 in.

 

 

 

Table 6.

P/N 472235

Rev. E 4-15-05

Page 11 Page 13
Page 12
Image 12
Pentair NT Series installation manual GAS Pipe Sizing, Pipe Sizing for GAS Line Connections
Page 11 Page 13

NT Series specifications

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One of the defining characteristics of the Pentair NT Series is its exceptional filtration capabilities. These filters are designed to effectively remove sediments, chlorine taste and odor, and other contaminants, ensuring clean and safe drinking water. With a multi-stage filtration process, the NT Series utilizes advanced materials and technologies that enhance filtration efficiency and longevity.

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Moreover, the NT Series incorporates innovative technology to monitor filter life and performance. Several models come with built-in sensors that provide real-time data on filter conditions, allowing users to know when it's time for a replacement. This proactive approach to maintenance enhances user experience and ensures continued access to high-quality water.

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In summary, the Pentair NT Series represents a blend of advanced filtration technology, user-friendly design, and durable construction. With its ability to remove various contaminants, easy maintenance features, and compact design, the NT Series caters to residential and commercial users alike. Investing in the NT Series ensures access to clean, great-tasting water while enjoying the benefits of reliable and efficient filtration technology.
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