- Wafer lug or grooved end connections.
- Press-to-connect ends selection.
- Broad range of sizes.
- Lug or wafer types.
- Ductile iron, cast iron, CPVC materials.
- Lead-free* selection.
- Fire protection selection.
- High performance selection.
How do I know what size valve I need?
When sizing a control valve, the rule of thumb is to size it so that it operates somewhere between 20-80% open at maximum required flow rate and whenever possible, not much less than 20% open at the minimum required flow rate.Jan 5, 2016
What is control valve sizing?
The process of “control valve sizing” is a procedure where the dynamics of the system are matched to the performance characteristics of the valve. This produces a control valve of an appropriate size and type that will best meet the needs of managing flow within the process system.Feb 21, 2018
How do you install a butterfly valve?
https://www.youtube.com/watch?v=fi1V-gLNJTM
Does it matter which way you install a butterfly valve?
The butterfly valves are bi-directional but do have a preferred flow direction. It's however strongly recommended to install the valves in the preferred flow direction, as it will extend the valve's life span and will also lower the operating torque.Oct 25, 2017
Which way does a butterfly valve go?
Valve Orientation As a rule of thumb, Butterfly valves be installed with the stem in the vertical position with the actuator mounted vertically directly above it, however, there are some applications where the stem should be horizontal. The .
Do wafer butterfly valves need gaskets?
Even wafer style valves require 2 flanges. ... This will allow the surrounding pipe line to connect snugly with the butterfly valve. Most butterfly valves do not require extra gaskets.Oct 28, 2013
How does a butterfly valve seal?
A butterfly valve is a quick opening, rotational motion valve that uses a metal, circular disc (vane) to start, stop or regulate flow in a pipe. Typically, a simple 90° rotation of the valves handle either opens or completely closes the valve as the vane seals itself against the seats in the valve housing.May 9, 2019
How do you grease a butterfly valve?
Closing butterfly valves To close the valve, apply a solution of alcohol mixed with powdered graphite to serve as a lubricant for the shaft.
Do butterfly valves have packing?
Because of this seat and stem design, there is no need for a packing that holds pressure from inside the valve. The packing in these valves simply prevents dirt and dust from entering from outside the valve. A high performance butterfly valve uses a rigid PTFE, or metal seat, that is narrower than the valve body.Nov 1, 2016
What are the two body styles of butterfly valves?
Butterfly valves are popular because of their low-profile designs. They are thin, usually taking up much less space in a pipeline than ball valves. The difference in the two main variations of butterfly valves is how they attach to the pipeline. These body styles are lug and wafer style.Jan 12, 2018