Burkert's valve is available in stainless steel or brass.

Type 6223 Series internally piloted, proportional valve is available in stainless steel or brass and orifice sizes from 0.0625 to 1". With CVS from 0.12 to 5.8 and pressures up to 145 psi, the valve has a nearly linear characteristic operating curve. The device from Burkert USA consists of a proportional valve and plug-on control unit that can be mounted in any position. Unit is self-closing in case of power failure and has a double O-ring seal that protects coil and valve assemblies from moisture and corrosion.

November 2000, RS# 224