McDonnell Miller (165300) Model 94-HD - Head MechanismModel number 94 HD is a head mechanism, with standard number 5 switch, for model number 94 and 194 controls. Head mechanisms include everything except a float chamber. They allow for quick and easy replacement by removing the bolts on the float chamber and then removing and replacing the new unit, with no need to disrupt piping. Part Number: 165300 Series: 94 , 194

Optional features BSPT threads

Four Monel paddles included

Model: 34018

4 Diameter: 13” Adjustable Size: 9 x 6 (11 x 15)

It also includes pair of 3" flanges

Used for Pumps: PD-35

convectors

for heating systems (steam and hot water)

Its maximum pressure is 150 psi and it has a tapped 1" FIP connection

1/2 in NPT BPT13US Balanced Pressure Thermostatic Straight Connections

PG 60 Appendix A18 of ASME Boiler Code Offset Design Blow Out Proof Stems Contains Lead

1 1/2” swing check valve