• Suitable for Monitoring • Balanced Supply Valve • Wide Pressure Range Offering The P133 is a direct operated pressure reducing regulator with external pressure registration used in commercial and industrial applications such as furnace and burners where accuracy and sensitivity is critical. The regulator utilizes a balanced diaphragm design that provides for the sensitivity and accuracy. This mini mizes the effects of supply pressure variation on output pressure. The P133 is available in low pressure or high pressure models and a broad range of outlet spring ranges. The P133 is also suitable in pressure monitoring applications.