IF YOU KNOW THE SERIES YOU REQURE, consult the table of contents to find the series you have selected. The section is laid out so that the most commonly used valves are illustrated and all the options are displayed in tables.

Note: A MAC 2 way is a 3 Way with one port plugged.

Normally Closed or Normally Open?

Pressure range: 25 to 150 psi or below 25 psi? (below 25 psi on external pilot connection is required for pilot operated valves) (See Note 2 below)

Single operator, spring return? (See Note 3 below)

Single operator, spring return or double opeator?

Pressurerange: 25 to 150 psi (single operator)? (See Note 2) 10 to 150 psi (double operator)? (See Note 4)(below these minimum an external pilot connection is required for pilot operated valves)

2 position or 3 positions? If 3 position: which center position? open______closed______or pressure center______?______

Solenoid, Remote air or Mechanical? If remote air or mechanical, go to step 3.

If solenoid, AC or DC? If DC, what voltage and power (watts)?

Electrical connections? (See Note 5 below)

Port size? (NPTF)

Valve mounting: inline? stacking? manifold base? circuit bar™? (See Note 5)

Integral pressure regulators? (See Note 5)

Integral flow controls? (See Note 5)

All MAC 4 Ways can be used as 3 Ways or 2 Ways by simply plugging the appropriate port or ports; however in certain applications where considerations of size, speed, flow or cost are important, it may be preferable to select a 3 Way valve for a 3 Way application.

Minimum pressure for the internally piloted 55 series valves is 30 psi. Maximum pressure for the 35 and 45 series is 120 psi.

MAC 3 Ways are all single operated spring return. For double operated 3 Ways, use a 4 way and plug the appropriate cylinder port.

For 3 position valves, minimum operating pressure is 25 psi.