Boiler Feed Water Level Controls
A boiler feed water level control is a mechanical level device that transfers the movement of a float in a chamber mounted beside the boiler to contact tubes, starting and stopping the feed pump. A stainless metal bellows between the float and the contact section transmits the movement without passing boiler pressure outside.
It is used on steam boilers, open and closed vessels and booster tanks. The store range includes devices with 1″ and DN25 chambers, single and double contact heads and a spare float.
Main Applications
- Steam boiler feed control
- Hot water and high-temperature water boilers
- Open and closed vessels
- Booster tanks
Technical Data
| Body | GGG 40.3 ductile iron |
|---|---|
| Float | Stainless steel |
| Sealing | Stainless metal bellows |
| Working pressure | 16 bar (float and bellows withstand 25 bar) |
| Medium temperature | Up to 200 °C |
| Contact | Mercury contact tubes; single or double contact (product range) |
| Level adjustment range | Wide type 15–75 mm, narrow type 15–30 mm |
| Connection | Flanged or threaded; 1″ and DN25 chamber models (product range) |
| Spare part | Spare float (product range) |
Material Options
| Part | Boiler feed level control |
|---|---|
| Body / chamber | GGG 40.3 ductile iron |
| Float | Stainless steel |
| Bellows | Stainless metal |
| Contact | Mercury contact tube |
Which material? The device is installed so its chamber stays level with the boiler and its steam and water connections remain open; if the chamber is not blown down regularly, sludge can affect the float.
Advantages
Mechanical Reliability
- No electronics needed
Pressure Resistance
- Bellows and float withstand 25 bar
Adjustable Range
- Wide or narrow type
Spare Parts
- Float and contact heads available separately
Construction and Design Features
- Ductile iron chamber connected to the boiler
- Stainless float inside the chamber
- Stainless metal bellows transmitting movement
- Head with mercury contact tubes
Write the boiler pressure, connection type and number of contacts; we will confirm the feed control with its spare parts.
How to Choose?
- Check the pressureConfirm boiler pressure is within 16 bar.
- Select the connectionChoose a 1″ threaded or DN25 flanged chamber.
- Set the number of contactsPick single or double contacts for pump and alarm.
- Choose the rangeSelect the wide or narrow adjustment range.
Complementary Products
Why ORFA?
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Details →Get a quote for your project
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