Sizing Pipe And Valves

48 %
52 %
Information about Sizing Pipe And Valves

Published on January 18, 2008

Author: sherylwil

Source: slideshare.net

Sizing pipe and valves

Velocity Safety limit for pipe is 5 ft/second Look at chart on page 66 of Rainbird Landscape Irrigation Design Manual Find where the velocity exceeds 5 ft/second We must select pipe that doesn’t exceed this amount

Safety limit for pipe is 5 ft/second

Look at chart on page 66 of Rainbird Landscape Irrigation Design Manual

Find where the velocity exceeds 5 ft/second

We must select pipe that doesn’t exceed this amount

Example pg 65 First circuit is 4 heads on one valve Straight line lateral circuit – least efficient Radius of sprinklers is 47 ft 55 psi 9.8 gpm Wants to use class 200 PVC pipe

First circuit is 4 heads on one valve

Straight line lateral circuit – least efficient

Radius of sprinklers is 47 ft

55 psi

9.8 gpm

Wants to use class 200 PVC pipe

Size in Reverse Called critical circuit length Section D, farthest away 9.8 gpm Cannot exceed 5 ft/s Look on the chart for the smallest pipe that can carry 9.8 gpm and not exceed 5 ft/s ¾” pipe can carry 10 gpm with a velocity of 4.72 ft/s

Called critical circuit length

Section D, farthest away

9.8 gpm

Cannot exceed 5 ft/s

Look on the chart for the smallest pipe that can carry 9.8 gpm and not exceed 5 ft/s

¾” pipe can carry 10 gpm with a velocity of 4.72 ft/s

Section C Supplies two sprinklers 9.8 gpm x 2 = 19.6 gpm Look at the chart What is the smallest size that can handle 19.6 gpm and not exceed 5 ft/s 1 ¼” pipe

Supplies two sprinklers

9.8 gpm x 2 = 19.6 gpm

Look at the chart

What is the smallest size that can handle 19.6 gpm and not exceed 5 ft/s

1 ¼” pipe

Section B Three sprinklers 9.8 x 3 = 29.5 gpm 1 ½” pipe Section A 9.8 x 4 = 39.2 gpm 2” pipe

Three sprinklers

9.8 x 3 = 29.5 gpm

1 ½” pipe

Section A

9.8 x 4 = 39.2 gpm

2” pipe

Size Circuit #2 Compare to Circuit #1 Advantages to splitting the circuit, smaller pipe sizes, less gpm needed

Compare to Circuit #1

Advantages to splitting the circuit, smaller pipe sizes, less gpm needed

Add a comment

Related pages

Valve Sizing Technical Bulletin (MS-06-84;rev 4;en-US ...

Valve Sizing Technical Bulletin Scope Valve size often is described by the ... Minimum lengths of straight pipe Standard distances from test valve Flow ...
Read more

Pipe-Valves, Inc - PVI, Columbus, Ohio

Pipe Chart; Research and Reports; ... Our roots in Industrial Pipe, Valves, and Fittings date back ... Nov 18, 2015 STEAM 201: Sizing & Testing of Steam ...
Read more

Selection and Sizing of Pressure Relief Valves

SIZING AND SELECTION Introduction Pressure relief valves must be selected by those who have complete knowledge of the pressure relieving requirements of ...
Read more

Control Valve Sizing - Pro-Quip, Inc.

Passing Through a Valve Control Valve Sizing Sizing & Selection 3. 3-2 ∆P/G f ... To find equivalent diameters of the valve or pipe inside diameter use: ...
Read more

CHEMCAD 6.0 SIZING TOOLS PIPES, PUMPS, METERS AND VALVES

CHEMCAD 6.0 Sizing Tools – Pipes, Pumps, Meters and Valves PAGE 2 OF 48 MNL 063B Issued 29 August 2008, Prepared by J.E.Edwards of P & I Design Ltd ...
Read more

Valve Sizing Calculations (Traditional Method)

Valve Sizing Calculations (Traditional Method) 626 Technical Introduction Fisher® regulators and valves have traditionally been sized using equations ...
Read more

Control valve sizing and flow coefficient Cv calculation

Control valve sizing calculator with calculation of control valve flow coefficient Cv, pressure drop and flow rate of control valve
Read more

Pressure drop in pipe fittings and valves | equivalent ...

Pressure drop in pipe fittings and valves using equivalent length and resistance coefficient
Read more