Pines Window Balance Spring Assemblies

Quick Learner from West Seattle, WA

Jun 4, 2014 12:33 pm

The metal portion of the assembly is 27 inches. I need two of these for a MilGuard Double hung non tilt window. Can you folks get me the part number and pricing??

Thanks,

Jim

User submitted photos of a window balance.

6 Replies

Tom from SWISCO

Jun 5, 2014 10:23 am

Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385 balances.

Now, as you can see, there is only one difference between these two Series, and that is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't quite tell what you have based on your pictures, though. Please carefully compare their dimensions to your own hardware and see which is a better match.

Comparison of 15-004 and 15-005

Quick Learner from Southwest Seattle

Jun 6, 2014 1:37 pm

I measured the front to back of the plastic guide and it is 1.090, so I guess that is the Series 385.

I have another window with a slightly wider aspect ratio, probably 1/3 larger which is using the same balance assemblies. The window, though heavier, is very hard to lower. It seems tight in the frame, could that be the problem.... the issue seems to be excessive tension, but.....

Thanks,

Jim

Tom from SWISCO

Jun 6, 2014 2:09 pm

Sounds like it could be a problem with the spring strength, yes. It's possible that the balances are too strong.

Quick Learner

Jun 7, 2014 10:50 am

Only with the other window.
To recap, I need one balance assembly as originally discussed, and two at about half tension and at the 1.00" front to back dimension.

That make sense?

Thanks,
Jim

Tom from SWISCO

Jun 9, 2014 2:04 pm

Sounds like you need this other window to have Series 380 balances, rather than the Series 385 balances like the first one. However, you should really weigh that sash to make sure you get the correct spring strength. These are very precise systems and its important to have as exact a weight as possible.