Description
CRL FA3930 40″ Window Channel Balance 3930/39-3
C.R. Laurence FA3930 40″ Window Channel Balance is expertly designed to provide reliable support for your window sashes. With a depth of 5/8″ (16 mm), this balance is commonly referred to as 1/2″ (13 mm) in the trade, ensuring compatibility with a wide range of applications. It is available to accommodate various weight ranges of 10, 20, 30, 40, and 50, making it suitable for sashes weighing between 19 to 24 pounds. To achieve optimal performance, each balance requires nylon guides that must be riveted to both the top and bottom of the channel. The Cat. No. H3740 Rivet Set Tool (sold separately) ensures a secure and sturdy installation by mushrooming the rivet for enhanced durability.When ordering, it’s crucial to measure only the length of the metal channel, excluding the guides, to ensure you select the correct size. Look for the stamped or laser-etched number on the back for accurate identification. The FA3930 is part of a broader range of sash balances, providing flexibility for various window configurations. Crafted for durability and ease of use, the C.R. Laurence FA3930 40″ Window Channel Balance is an essential component for maintaining functional and efficient window systems.
40″ Window Channel Balance – 3930 or 39-3
- Measures 5/8″ (16 mm) Depth, but Referred to as 1/2″ (13 mm) in the Trade
- 10, 20, 30, 40, and 50 Weight Range Balances in Lengths from 13″ to 43″ (330 mm to 1.09 m)
Each CRL
FA Series 3/30 Weight Range Sash Balances requires one of several types of nylon guides to be riveted onto the top and bottom of the channel. Customers can mount the guides using Cat. No. H3740 Rivet Set Tool (sold separately), which mushrooms the rivet, giving it a very strong set.
Guide Options are:
FS290B, FS291B, FS292B, FS293B, FS294B, FS295B, FS296B, FS297B, FS298B, and FS299B
Ordering Tips for FA Series Sash Balances
Remove the existing Channel Balance from the window. Measure the length of the metal channel only. Do not include the Guides. This measurement should be at full inch increments.
NOTE: There have been a few window manufacturers that have used special 1/2″ (12.7 mm) increment channel lengths. These Channel Balances are not stocked, however they can be special ordered.
Always look for the stamped or laser etched number on the back of the Channel Balance. This number will either be four numbers or two numbers and a letter. For example: 2710 or 27-2.
Using the numbers on the back of the Channel Balance, refer to the chart. If you have a full 18″ (457 mm) length channel, and the corresponding number on the back of the Channel Balance is 1710 or 17-1, the corresponding CRL Cat. No. is FA1710.
If you have a full 27″ length channel, and the number on the back of the Channel Balance is 2610 or 26-1, the corresponding Cat. No. is FA2610. The chart also includes a vent weight range. This range indicates the amount of sash weight that a pair of Channel Balances will hold. This range does not account for any excessive weatherstrip friction.
NOTE: The weight range chart should be used for reference only, or if the stamped number is too difficult to read.
Special weight range Channel Balances are available by special order. The standard balance chart shows stocked weight ranges from FA1210 to FA4240. The 10, 20, 30, 40 and 50 represents the counter-balance weight designation. If your Channel Balance has a number 90 or 9, instead of the five weight ranges listed above (for example: 2790-26) this Channel Balance was made specifically to carry a 26-pound sash weight per pair of Balances. If your Channel Balance has a “DS” after the length, for example 27DS-34, this pair of Channel Balances was made specifically to carry a 34-pound sash weight. These special weight Channel Balances are sometimes designed specifically for upper or lower sashes only. This information will need to be provided at time of order.
Product Warning:
The first two numbers of the CRL Catalog Number do not represent the length of the channel.
Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. Colors can vary depending on your computer’s video card and on how your monitor’s color is adjusted.
Attributes
Channel Depth: 5/8
Channel Length: 40
Channel Width: 9/16
Compliance and Restrictions: Warning Reproductive Harm – www.p65warnings.ca.gov
Guides Attached: No
Number Stamped on Channel: 3930 or 39-3
Shipping Limitations: None
Vent Weight Range: 19 To 24
Resources
- Window Channel Sash Balance Weight Range Information
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