Tips For Installing Tank Blanketing Valves

Proper installation of the tank blanketing (tank padding) regulator is key to valve performance in your process. Likewise, proper installation of the sensing line to the tank, also referred to as the control line or impulse line, is the best way to ensure maximum performance in a tank blanketing regulator.

Tank Blanket Sensing Line Installation:

For proper tank padding valve performance, a sensing line must be installed as follows:

• Connect one end of a ¾” pipe to the fitting under the diaphragm.
• Connect the other end to an appropriate fitting on the tank.
• AVOID locating the control line tap in any location where turbulence or abnormal velocities may occur.
• The control line should be sloped away from the valve.
• Install a pressure gauge to measure pressure in the tank itself, not in the outlet piping or the control line to aid in setting the valve.

Tank Blanket Valve Installation:

It is important to follow these recommendations when installing a tank blanketing valve:

• Keep the regulator as close to the tank as possible and as high as possible.
• Minimize the length of the downstream pipe coming from the valve.
• NEVER reduce the pipe size on the valve outlet to the tank. This line must always be as large as the valve size, or one pipe size larger to assure it does not act as a restriction.
• Any downstream isolation valve after the regulator must be a full port type. The isolation valve cannot act as a restriction.
• The sensing line must be a minimum of ¾” pipe.
• A sensing line isolation valve is recommended. Again, it must be full ported.
• Slope the sensing line to the sensing port on the tank.
• Keep the sensing line as short and straight as possible.
• For each 10 feet of sensing line, increase the line size by one pipe diameter. (Especially important on blanket pressures of less than 5 inches of water column)
• Keep the sensing port on the tank as far removed as possible from the downstream pipe outlet going into the tank.

Following these recommendations will ensure that your regulator works as expected.  For more information, see the instructions for your specific Jordan Valve tank blanketing product.