Valve And Fitting Pipe Equivalents; Electrical Connections - Generac Power Systems MGG155 Operating Manual

Read across chart from left (required flow) to right to find the total length which is equal to, or exceeds, the
3.
distance from source to use.
From this point, read up to find the correct size of pipe required.
4.

Valve and Fitting Pipe Equivalents

3/4 in
Fitting
(2 cm)
Schedule
40 80
45° Screwed
1.2 ft 0.9 ft
(0.4 m) (0.3 m)
Elbow
90° Screwed
1.8 ft 1.6 ft
(0.5 m) (0.5 m)
Elbow
Screwed T
1.4 ft 1.3 ft
(0.4 m) (0.4 m)
Thru Run
Screwed T
4.6 ft 4.0 ft
(1.4 m) (1.2 m)
Thru Branch
Screwed 14.0 ft 10.0 ft
(4.3 m) (3.0 m)
Globe Valve*
Screwed
11.0 ft 8.0 ft
(3.4 m) (2.4 m)
Angel Valve*
Flanged
- -
Globe Valve*
Flanged
- -
Angle Valve*
* Reg O A7500 series valves.

Electrical Connections

Class 1 wiring methods must be used for field wiring connections to terminals of a class 2 circuit. It is the responsibility
of the owner/operator to arrange for these procedures to be performed by a licensed electrical contractor and ensure
conformance to all applicable codes, including local codes specific to your municipality/city/county and state. Wire
size and insulation type should be as required by National Electrical Code (NEC), state and local regulations.
ELECTROCUTION. NEVER CONNECT THIS UNIT TO THE ELECTRICAL SYSTEM OF
ANY BUILDING UNLESS A LICENSED ELECTRICIAN HAS INSTALLED AN APPROVED
TRANSFER SWITCH. FAILURE TO DO SO WILL RESULT IN DEATH OR SERIOUS
35319 C
Table 3 - Valve & Fitting Pipe Equivalents
Equivalent Length Of Steel Pipe
Nominal Pipe Size (NPT)
1 in 1-1/4 in
(3 cm) (3 cm)
Schedule Schedule
40 80 40 80
1.3 ft 1.2 ft 1.7 ft 1.5 ft
(0.4 m) (0.4 m) (0.5 m) (0.5 m)
2.3 ft 2.1 ft 3.1 ft 2.9 ft
(0.7 m) (0.6 m) (0.9) (0.9)
1.7 ft 1.6 ft 2.4 ft 2.3 ft
(0.5 m) (0.5 m) (0.7 m) (0.7 m)
5.6 ft 5.3 ft 7.9 ft 7.3 ft
(1.7 m) (1.6 m) (2.4 m) (2.2 m)
21.0 ft 16.0 ft 24.0 ft 19.0 ft
(6.4 m) (4.9 m) (7.3 m) (5.8 m)
13.0 ft 10.0 ft 10.5 ft 8.5 ft
(4.0 m) (3.0 m) (3.2 m) (2.6 m)
- - - -
- - - -
DANGER
INJURY. (000150)
MGG155/210 Operating Manual
1-1/2 in 2 in
(4 cm) (5 cm)
Schedule Schedule
40 80 40 80
2.0 ft 1.8 ft 2.6 ft 2.4 ft
(0.6 m) (0.5 m) (0.8 m) (0.7 m)
3.7 ft 3.4 ft 4.6 ft 4.4 ft
(1.1 m) (1.0 m) (1.4 m) (1.3 m)
2.8 ft 2.6 ft 3.6 ft 3.3 ft
(0.9 m) (0.8 m) (1.1 m) (1.0 m)
9.3 ft 8.6 ft 12.0 ft 11.0 ft
(2.8 m) (2.6 m) (3.7 m) (3.4 m)
39.0 ft 27.0 ft 42.0 ft 34.5 ft
(11.9 m) (8.2 m) (12.8 m) (10.5 m)
20.0 ft 16.0 ft 32.0 ft 26.5 ft
(6.1 m) (4.9 m) (9.8 m) (8.1 m)
30.0 ft 24.0 ft 4.10 ft 34.0 ft
(9.1 m) (7.3 m) (1.2 m) (10.4 m)
12.0 ft 10.0 ft 14.5 ft 12.0 ft
(3.7 m) (3.0 m) (4.4 m) (3.7 m)
General Information
2-1/2 in 3 in
(6 cm) (8 cm)
Schedule Schedule
40 80 40 80
3.0 ft 2.8 ft 3.8 ft 3.7 ft
(0.9 m) (0.9 m) (1.2 m) (1.1 m)
5.3 ft 5.1 ft 6.9 ft 6.5 ft
(1.6 m) (1.6 m) (2.1 m) (2.0)
4.2 ft 4.0 ft 5.4 ft 5.0 ft
(1.3 m) (1.2 m) (1.6 m) (1.5 m)
15.0 ft 14.0 ft 17.0 ft 16.0 ft
(4.6 m) (4.3 m) (5.2 m) (4.9 m)
24.0 ft 20.0 ft 46.0 ft 39.0 ft
(7.3 m) (6.1 m) (14.0 m) (11.9 m)
7.5 ft 6.0 ft 19.0 ft 16.0 ft
(2.3 m) (1.8 m) (5.8 m) (4.9 m)
- - 46.0 ft 39.0 ft
(14.0) (11.9 m)
- - 19.0 ft 16.0 ft
(5.8 m) (4.9 m)
19