Variable Area

KSM

Variable Area Flowmeter

The KOBOLD KSM is a durable, corrosion-resistant flow meter designed for measuring the flow rates of liquids and gases, especially in applications involving aggressive or corrosive media. Utilizing the variable area (rotameter) principle, it features a float that moves freely within a conical measuring tube, providing direct flow indication.

• Measuring range (Water): 15 - 60000 l/h
• Measuring range (Air): 0.08 - 2500 m3/h
• Connection: 0.5" - 3.5"
• Material: trogamide-T; polysulfone
• Pmax: 16 bar
• Tmax: 60°C (trogamide); 100°C (polysulfone)

SMO

Variable Area Flowmeter & Switch

The KOBOLD SMO is a robust, all-metal variable area flow meter and switch designed for precise measurement and monitoring of liquid flow in vertical pipelines with a top-to-bottom flow direction. Utilizing a displacer (float) system with a return spring, it ensures accurate flow detection without the need for external power.

• Switching range: 0.2 - 120 l/min water
• Accuracy: ±5 %
• Pmax: 250 bar (brass); 350 bar (st-steel)
• Tmax: 100°C
• Connection: G 0.25 - G 1
• Material: brass; st-steel

URK

Variable Area Flowmeter

The URK is a variable area flow meter designed for measuring the flow rates of liquids and gases in closed pipeline systems. It operates on the suspended float principle, where the medium flows upward through a glass measuring cone that widens at the top. As the flow increases, the float rises, indicating the flow rate on the scale provided on the measuring cone.

• Measuring range (Water): 1 - 50000 l/h
• Measuring range (Air): 0.02 - 500 Nm3/h
• Pmax: 16 bar
• Tmax: 100 °C
• Connection: flange DN 15 - 80
• Material: cast iron st-steel

KDS

Variable Area Flowmeter

The KOBOLD KDS is a robust, all-metal variable area flow meter (rotameter) designed for precise measurement of low flow rates of liquids and gases. Its compact design and durable construction make it ideal for applications in chemical processing, medical technology, and laboratory environments.

• Measuring range (Water): 0.1 - 200 l/h
• Measuring range (Air): 3 - 6000 Nl/h
• Accuracy: ±3 %
• Pmax: up to 420 bar
• Tmax: +130°C
• Material: st-steel
• Connection: 0.25" NPT

BGN

Variable Area Flowmeter

The BGN is a robust, all-metal variable area flow meter (rotameter) designed for precise measurement of liquids, gases, and steam under challenging industrial conditions. Its armored construction ensures durability in high-pressure and high-temperature environments, making it suitable for a wide range of applications.

• Measuring range (Water): 0.5 to 130000 l/h
• Measuring range (Air): 0.015 to 2400 Nm3/h
• Pmax: PN 40 (16) bar
• Tmax: 350 °C
• Accuracy: ±1.6 %
• Connection: flange DN15 - DN150
• Protection: IP 67
• Material: st-steel