Can you help me to identify the part number?

Quick Learner from Washington

Jul 19, 2018 3:34 pm

Hi can you help me to identify the channel spring that i?m Looking for? I have a 33 inch long window channel spring with 32D. However, the width looks like 5/8 instead of 1/2 or 3/8 available on your website.

Do you have the 5/8 channel balances available?

Thanks

3 user uploaded images

6 Replies

Tom from SWISCO

Jul 20, 2018 9:52 am

Ah, I wouldn't worry about that. There's no 5/8" balance on the market, and I asked around, and it seems like there probably never was.

The 1/2" designation is nominal: meaning it's just a name. The actual measurement is usually 9/16", sometimes touching on 5/8". Just measure the bottom shoe to choose Series 380 or Series 385. The 1" shoe is for Series 380, and the 1-3/32" shoe is for Series 385.

Comparison of 15-004 and 15-005

Quick Learner from Washington

Jul 20, 2018 1:21 pm

Thanks Ben, mine is 33 inch series 385, but I have a 32D tension, what sash tension should I choose?

Tom from SWISCO

Jul 23, 2018 8:45 am

32D has been replaced in the industry by 3240. I believe you've already seen that option on the S385-33 webpage.

Quick Learner from Washington

Jul 25, 2018 1:51 am

Thank you Ben. That really helps me.

I have another broken channel balance. It is 28 pound, and the metal part itself is 24 inch. And the mark on the channel is 23-4 GG5 CMC54.

Should I choose S385-24, with 3240 tension?

Thanks

2 user uploaded images

Tom from SWISCO

Jul 25, 2018 8:12 am

Yes, exactly. S385-24 with the 2340 option is best.