Mark 33 Series
Boiler Feedwater Control Valve
DESCRIPTION
Boiler Feedwater Control Valve
The Mark 33 is a motor-operated valve featuring the Jordan sliding gate seat and heavy-duty industrial motors for proportional (resistance), on-off, 4-20 mA electronic control. Models include the Mark 33 in sizes 1/4″ through 2″ (DN8 through DN50), the high flow Mark 331/332 with Cv’s up to 70 (60,34 Kv) and the Mark 39 with three-way body.
Features & Benefits
- Heavy duty industrial grade motor – die cast magnesium housing, NEMA 3 (weather protection) rated, UL® listed and CSA approved
- Oil-immersed motor and gear train for long-term, reliable performance
- Sliding gate seats provide straight-through flow for reduced turbulence and quiet operation
- Short stroke for fast response and accurate regulation
- Easily interchangeable Cvs
- Tight shutoff
Specifications
- Sizes: 1/4″ – 2″ (DN8 – DN50)
- Body Material: Carbon Steel, Stainless Steel, Ductile Iron, Bronze
- End Connection: Threaded, Flanged, Socket Weld, Butt-Weld
- Cv (Kv): up to 395 (up to 340)
- Set Material: Jorcote
- Command Signals: Current or voltage command, on/off


