Multiple Dust Ports, Calculating Duct Resistance

W1816 Owner's Manual (Mfg. Since 10/09)

Multiple Dust Ports

If your machine has multiple dust ports, add the total CFM given for each dust port size from Figure 40. Refer to the chart in Figure 45 and find the CFM that is closest to your total to determine the correct branch size. Split the branch line just before the dust ports with matching duct sizes.

Two Machines on Same Branch Line

If both machines will be running at the same time, add the total CFM given for each dust port size from Figure 40.

If both the machines will never be run at the same time, reference the machine with biggest dust port to Figure

45and add blast gates after the Y-branch to open/close the line to each machine.

Calculating Duct Resistance

Adding duct work, elbows, branches and any other components to a duct line increases airflow resistance (static pressure loss). This resistance can be minimized by using rigid (smooth) pipe and gradual curves, as opposed to flexible pipe and 90˚ elbows.

To help you think about this resistance, imagine riding a bicycle in a tunnel that is an exact replica of your duct work. If the inside of the tunnel is very bumpy (flexible pipe) and has a lot of sharp turns (90˚ elbows), it will take a lot more effort to travel from one end to the other.

The purpose of calculating the resistance is to determine if it is low enough from the machine to the dust collector to meet the given CFM requirement for the machine. Use the charts in Figure 46 to calculate the resistance of duct work.


	Total CFM	Branch Line Size
	600	5"
	700	5"
	800	6"
	1000	6"
	1200	7"
	1400	8"
	1600	8"

Figure 45. Branch line sizing chart by

total CFM (for use when multiple machines

share the line).


	Approximate		Approximate
Duct	Static		Static
Duct	Pressure Loss		Pressure Loss
Dia.	Pressure Loss		Pressure Loss
Dia.	Per Foot of		Per Foot of
	Per Foot of		Per Foot of
	Rigid Pipe		Flex Pipe
	Main	Branch	Main	Branch
	Lines	Lines	Lines	Lines
	@	@	@	@
	3500	4000	3500	4000
	FPM	FPM	FPM	FPM
2"	.091	.122	.35	.453
2.5"	.08	.107	.306	.397
3"	.071	.094	.271	.352
4"	.057	.075	.215	.28
5"	.046	.059	.172	.225
6"	.037	.047	.136	.18
7"	.029	.036	.106	.141
8"	.023	.027	.08	.108
9"	.017	.019	.057	.079



Fitting	90˚	45˚	45˚	90
Dia.	Elbow	Elbow	Y	Y

3"	.47	.235	.282	.188
4"	.45	.225	.375	.225
5"	.531	.266	.354	.236
6"	.564	.282	.329	.235
7"	.468	.234	.324	.216
8"	.405	.203	.297	.189

Figure 46. Airflow resistance (static

pressure loss) charts.

OPERATIONS

-31-

W1816 specifications

Woodstock W1816 is a remarkable and versatile digital watch designed for modern consumers who value both style and functionality. With its sleek aesthetic and innovative technologies, the W1816 has become a popular choice among watch enthusiasts and casual wearers alike.

One of the main features that set the Woodstock W1816 apart is its high-resolution LCD display that ensures clear visibility in various lighting conditions. This display can showcase not just the time but also additional information such as day, date, and even notifications from connected devices, enhancing the overall user experience.

The W1816 operates using advanced quartz movement technology, which guarantees precision and reliability. Quartz watches are known for their accuracy, and the W1816 upholds this standard, ensuring that users can depend on it for timekeeping without the need for constant adjustments.

Another noteworthy characteristic of the Woodstock W1816 is its durable build quality. The watch is crafted from high-quality materials that provide resistance to wear and tear, making it suitable for everyday use. The stainless steel casing coupled with a scratch-resistant glass face ensures that the watch retains its elegance over time.

Additionally, the W1816 is equipped with smart technology features that integrate seamlessly with smartphones. This connectivity allows users to receive calls, messages, and other alerts directly on their wrist, reducing the need to constantly check their devices. Furthermore, its battery life is optimized to last several days on a single charge, making it convenient for users who are always on the go.

The Woodstock W1816 also emphasizes comfort and adjustability with its ergonomic design. The watch band is made of high-quality silicone or stainless steel, offering a range of sizes to accommodate various wrist sizes comfortably.

In conclusion, the Woodstock W1816 combines cutting-edge technology and classic design elements. Its high-resolution display, quartz movement, durability, smart connectivity, and comfort make it an exceptional choice for anyone seeking a practical yet stylish timepiece. As technology continues to evolve, the W1816 stands as a testament to the blend of tradition and innovation in the world of wristwatches, catering to the needs of both tech-savvy users and those who appreciate timeless design.

Woodstock W1816 owner manual Multiple Dust Ports, Two Machines on Same Branch Line

Models: W1816