How close are closely spaced tees?

How close are closely spaced tees?

It is VERY important that the closely spaced tees be no further apart than 4 times the diameter of whatever size pipe constitutes the primary/secondary loop, and it is equally important that the length of the straight pipes extending from the closely spaced tees be at least 6 times that same pipe diameter.

What is the purpose of closely spaced tees?

If you are going to build a true primary/secondary system, each load circuit and each heat source needs to connect to the primary loop using a pair of closely spaced tees. These tees isolate the pressure dynamics of each circulator from the other circulators in the system. This is called hydraulic separation.

What is boiler primary loop?

Primary Loop Piping keeps high efficiency boilers running more efficiency. Primary Loop Piping also works well with condensing boilers allowing proper flow through the boiler for the highest rate of heat delivery. Primary Loop with the same temperature as the Heat Source.

How do you measure a boiler primary loop?

Summary

1. Determine the rate of heat delivery available from the heat source.
2. Pick a target temperature drop for the primary loop.
3. Calculate the primary loop flow rate needed based on 1 and 2.
4. Estimate the head loss of the primary loop at this flow rate to get the operating point.

What is a hydraulic separator?

The Hydraulic Separator is multi-purpose equipment that replaces several components in the system, simplifying piping and reducing installation time. BENEFITS, FEATURES AND FUNCTIONS: Hydraulically separates primary and secondary circuits. Separates and vents air from the system.

What is hydronic separation?

Ten years ago, the term hydraulic separation was very new to the vocabulary used in the North American hydronics market. In essence, that is what hydraulic separation is: The ability of two or more circulators within the same piping system to simultaneously operate without interfering with each other.

What is a low loss header on boiler?

What is a low loss header? The purpose of a low loss header is to enable hydraulic separation between the boiler & heating circuit. The low loss header helps to improve the performance & efficiency of the heating system. Furthermore, it helps regulate the system’s flow rate & pressure.

What is secondary piping?

Primary/ secondary piping is a versatile piping method that’s increasingly being used as the backbone of modern multi-load/multi-temperature hydronic systems. The result is an extremely versatile piping method that’s increasingly being used as the backbone of modern multi-load/multi-temperature hydronic systems.

How do you size a boiler pipe?

Boiler Piping Flow Pipe Sizing – Flow Rate Calculation To achieve a calculated flow rate when sizing the pump use the following formula: Take the measurement of the longest run in the loop in feet and add 50% to that measurement. Multiply that number by . 04 to get the pump head.

What size pipe goes into a boiler?

Most gas combi boilers require a 22mm supply pipe to be fitted from the combi boiler to the meter. It may also have to be upgraded to 28mm and even 35mm in sections if the gas route is a particularly long distance, has many bends and turns in the route it takes or services many appliances.