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AC720
Automatic changeover system
AC720

AC720

Automatic changeover regulator and system — supplies gas continuously from two cylinders, switching automatically when the supply cylinder pressure drops to a marginal level. An upgraded version of the AC700 series, supplied as a set with filter, check valve, optional core valve and STS-PFA flexible high-pressure hoses. 316L stainless or brass body, max inlet 250 bar (3,600 psig), outlet 0.1–20 bar, Cv 0.2, wall-mounting as standard.

Ports
1/4" FNPT
Body
316L stainless / brass
Bonnet
Nickel-plated brass
Diaphragm
316L stainless

Materials

Ports1/4" FNPT
Body316L stainless / brass
BonnetNickel-plated brass
Diaphragm316L stainless
Main valve316L stainless
Valve spring316L stainless
Valve seatTeflon (standard)
Max inlet250 bar (3,600 psig)
Outlet range2 · 4 · 10 · 20 bar
Design proof150% of maximum rated
Leakageto 2×10⁻⁸ atm cc/sec helium
Operating temp.PFA: -40°C to +70°C
Flow capacityCv 0.2
Other optionsCGA, gauge valve, etc.

Applications & Documents

Ordering

Configure your order

Select the variables exactly as they appear in the manufacturer datasheet. The full part number is assembled automatically.

1

Body Material

single select · 2 values
2

Outlet Pressure Range

single select · 4 values
3

Inlet Hose Size

single select · 3 values
4

Flow Capacity

single select · 1 values
5

Diaphragm Material

single select · 1 values
6

Hose Size (STS PFA)

single select · 3 values
7

A and B CGA Connection

single select · 10 values
Order part number
DST

Select variables

1

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