• Home
• Help
• Directory
• Search
• Gallery
• Classifieds
• Login
• Register

Plumbers NZ is New Zealand's largest online plumbing, gas and drainage resource. Plumbing exam help, plumbing news, directory and free quotes.

Author Topic: allowable pressure drop...  (Read 2689 times)

0 Members and 1 Guest are viewing this topic.

roberto

• Full Member
• 
• 
• Posts: 168
• Karma: +4/-0

allowable pressure drop...

« on: August 20, 2014, 10:20:38 PM »

• Tweet
• 

Do you always allow a pressure drop of 10% when pipe sizing no matter what the pipe material is or what is being conveyed? lpg or nat gas?...just looking at a certifying exam paper from june 2013

Linkback: https://www.plumbers.nz/gas-station/11/allowable-pressure-drop/1739/

Share Post

| Report to moderator   Logged

---

bowtieboy

• Full Member
• 
• 
• Posts: 247
• Karma: +30/-0
• craftsman and proud of it

Re: allowable pressure drop...

« Reply #1 on: August 21, 2014, 07:28:27 AM »

• Tweet
• 

pretty sure thats what Nzs5601 says can be the maximum pressure drop

Share Post

| Report to moderator   Logged

I believe in doing a job once and right. !

---

roberto

• Full Member
• 
• 
• Posts: 168
• Karma: +4/-0

Re: allowable pressure drop...

« Reply #2 on: August 22, 2014, 08:40:17 PM »

• Tweet
• 

the only problem I have is that on the question doesn't give you a allowable pressure drop.....so how are you supposed to know what chart to look up if you were never given one???

Share Post

| Report to moderator   Logged

---

	Subject / Started by	Replies / Views	Last post
	recent drop in cold water pressure in shower Started by serviens	1 Replies 2329 Views	April 30, 2020, 11:56:43 AM by Plumber
	bib overalls/drop sheets Started by roberto	0 Replies 1468 Views	August 01, 2012, 09:17:20 PM by roberto
	more water pressure Started by bell	4 Replies 5092 Views	June 15, 2012, 08:04:43 PM by integrated
	Low hot water pressure Started by namelsss	8 Replies 10183 Views	March 12, 2011, 06:58:10 PM by Thunderhead