[TowerTalk] pull lubricant

[Grant Saviers]

Good to know.

Contrary to another response, sch 10, 20, 40, 80, 120, 160 etc pipes and 
pipe size PVC conduit (standard) all have the same OD, so any size will 
mate to any other size via a coupling or bell end.  The ID varies.

In my experience with water systems, for sch 40 it is usually the 
fittings that fail - elbows, couplings, etc.  so one trick is to use sch 
80 fittings with sch 40 pipe, but the cost per fitting is significantly 
higher.

Grant KZ1W

On 7/20/2011 7:04 PM, Steve Maki wrote:
> Even schedule 40 bends are available in different radii, for example 4"
> 90's commonly are found in 24" and 48" radius versions, and I believe
> 36" radius can be ordered. Not at Home Depot though - regular electrical
> supply shops.
>
> -Steve K8LX
>
>> -----Original Message-----
>> From: Grant Saviers [mailto:grants2 at pacbell.net]
>> Sent: Wednesday, July 20, 2011 12:01 PM
>> To: Dick Green WC1M
>> Cc: TowerTalk at contesting.com
>> Subject: Re: [TowerTalk] pull lubricant
>>
>> a related conduit question -
>>
>> I noticed when checking out conduit at HD that the sch 80 sweeps are a
>> larger radius than sch 40 at least in the 2 and 3 inch sizes they had
>> laying around.  So using sch 80 sweeps seems like a good idea for
>> coax/hardline runs except there will be a inside diameter small step at
>> the coupling to sch 40 pipe (I don't want to pay for lots of sch 80 pipe).
>>
>> Any experience with mixed sch 40 conduit/sch 80 sweeps and pulling hardline?
>>
>> Grant KZ1W
>>
>> PS: PG&E (Calif) requires sch 80 in and out of the ground but sch 40 is
>> ok buried for service entrance, they made it work for 500mcm pulls at my
>> shop.
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