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04-07-2020, 04:19 PM
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#1
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Senior Member
Join Date: Aug 2017
Location: Dolores, Colorado
Trailer: 2017 5.0 TA, pulled w/ 2003 Dodge 3500 Cummins 4x4 SRW LWB
Posts: 113
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Sharkbite on Reinforced PVC Tubing?
From the outlet side of our water pump (2017 5.0 TA) Escape used what they describe as "½” reinforced PVC braided line, see example here https://www.homedepot.com/p/Everbilt...C003/303132530 "
It is fastened at both the outlet barb on the pump and on a PEX coupler fitting (where it transitions to PEX pipe) with copper PEX crimp rings. The link Escape sent me lists the "braided PVC line" as 3/4" OD x 1/2" ID. Since it appears compatible with both PEX fittings and PEX crimp rings, I am wondering if anyone has experience using a Sharbite (push to connect) PEX coupler in this line? Thanks.
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04-07-2020, 05:54 PM
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#2
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Senior Member
Join Date: Apr 2014
Location: Arvada, Colorado
Trailer: 2015 E'21 - 'Velocity'. Tow: Toyota Tacoma V6, 4X4, manual.
Posts: 1,692
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Quote:
Originally Posted by SWCO
... I am wondering if anyone has experience using a Sharbite (push to connect) PEX coupler in this line? Thanks.
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This might be of some benefit. Two Sharkbite fittings with a very short bit of white PEX between them. Then 2 reducers and a tailpiece to connect to the vinyl hose. (My expansion tank mod.)
--
Alan
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04-07-2020, 09:25 PM
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#3
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Senior Member
Join Date: Mar 2016
Location: Burlington Twp., New Jersey
Trailer: 2010 Escape 19
Posts: 7,146
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Quote:
Originally Posted by SWCO
From the outlet side of our water pump (2017 5.0 TA) Escape used what they describe as "½” reinforced PVC braided line, see example here https://www.homedepot.com/p/Everbilt...C003/303132530 "
It is fastened at both the outlet barb on the pump and on a PEX coupler fitting (where it transitions to PEX pipe) with copper PEX crimp rings. The link Escape sent me lists the "braided PVC line" as 3/4" OD x 1/2" ID. Since it appears compatible with both PEX fittings and PEX crimp rings, I am wondering if anyone has experience using a Sharbite (push to connect) PEX coupler in this line? Thanks.
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You cannot use PVC braided line with Sharkbite push-to-connect fittings. They are made for PEX, copper, CPVC, PE-RT and HDPE pipe.
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04-07-2020, 11:02 PM
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#4
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Senior Member
Join Date: Dec 2012
Location: Edmonton, Alberta
Trailer: 1979 Boler B1700
Posts: 14,935
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Quote:
Originally Posted by rubicon327
You cannot use PVC braided line with Sharkbite push-to-connect fittings. They are made for PEX, copper, CPVC, PE-RT and HDPE pipe.
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To explain this... - most fittings seal to the inside of the tube or hose by clamping the tube or hose onto a smaller-diameter stub of tubing, with barbs on it to keep the tube or hose from sliding off, but
- the normal Sharkbite push-to-connect fitting seals a larger-diameter stub of tube to the outside of tube with an O-ring.
PVC (vinyl) hose is not stiff, so pushing a tube over it with an O-ring doesn't work - the hose can just collapse and lose adequate contact with the O-ring.
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04-08-2020, 10:11 AM
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#5
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Senior Member
Join Date: Aug 2017
Location: Dolores, Colorado
Trailer: 2017 5.0 TA, pulled w/ 2003 Dodge 3500 Cummins 4x4 SRW LWB
Posts: 113
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Quote:
Originally Posted by Brian B-P
To explain this... - most fittings seal to the inside of the tube or hose by clamping the tube or hose onto a smaller-diameter stub of tubing, with barbs on it to keep the tube or hose from sliding off, but
- the normal Sharkbite push-to-connect fitting seals a larger-diameter stub of tube to the outside of tube with an O-ring.
PVC (vinyl) hose is not stiff, so pushing a tube over it with an O-ring doesn't work - the hose can just collapse and lose adequate contact with the O-ring.
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I appreciate the explanation. I was aware of the compatible products listing on the Sharbite website (see Rubicon above), but thought perhaps the braided PVC application was too obscure for them to mention. It appears that the braided PVC tubing generally costs more per foot than the same size PEX pipe and is not as durable, so I assume it is not widely used. The Sharkbite slip-on couplers appear to have a sleeve intended to support the inside of inserted pipe. Thanks again.
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