Application

The 4403 series regulators provide very sensitive control of a variety of gases at low pressures. The large molded diaphragm assures responsive regulation with inlet pressures up to 250 PSI.

Features

• Large molded diaphragm provides highly sensitive and accurate low pressure control.
• Zinc body and bonnet resist corrosion and provide longer life.
• Teflon seat disc, teflon faced diaphragms, and stainless steel nozzles make the T4403J regulators compatible with a variety of gases.
• LV4403C2H42 features integral relief valve set at 3 psig.
• Adjusting screw is concealed by a plastic cap which helps prevent pressure adjustments by unauthorized personnel.
• Working temperature range is -40°F to +165°F. (-40ºC to +74ºC)
• Not suitable for oxygen applications

Materials

Body ..............................................................................Zinc
Bonnet ...........................................................................Zinc
Diaphragm .....T4403J, 4403W, S4, T4, U4 Teflon Faced Buna N
4403WP4, .............................................................R4 Buna N
(LV4403C) ....................Integrated Fabric and Synthetic Rubber
Spring ...........................................................................Steel
Seat (T4403J) ................................................................PTFE
(4403W) (LV4403C) .....................................................Buna N
Nozzle (T4403J) ...............................................Stainless Steel
(4403W, LV4403C) ........................................................Brass

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