Overview
Kobold Low Volume Variable Area Flow Meter model KDF-9 and KDG-9 for liquids and air operate on the suspended float principle: that is, the installation position is vertical and the direction of flow is from bottom to top.
The instruments have been designed as simple and thus economical measuring systems. The float is a ball, whereby the indication point is the upper edge of the ball. A needle valve is fitted as standard.
Kobold Low Volume Variable Area Flow Meter Technical Details
- Installation position: vertical, flow from bottom
- Accuracy: ±3% QG 50
acc. VDE/VDI 3513 page 2
±3.5% of full scale (upstream pressure controller)
±5% of full scale (downstream pressure controller)
(within 10-100% of measuring range) - Max. pressure: PN16
- Process temperature: -20°C … +100°C
-20°C … +70°C with contact - Ambient temperature: -20°C … +100°C
-20°C … +70°C with contact - Protection type: IP65 (EN60529)
- Connection: ¼” NPT; G ¼ (female backward)
- Option: hose nozzle for 8 mm hose
- Weight: approximate 0.4 kg
approximate 0.8 kg with controller
Mounting length: 90 mm
Measuring range:
- 0.02 – 0.25 … 10 – 100 l/h water
- 2.0 – 20 Nl/h … 300 – 3000 Nl/h air
Connection: ¼” NPT, G ¼ female thread
Material: stainless steel
pmax: 16 bar
tmax: 100°C
Accuracy: ±3 % qG = 50 %
Option: contacts, up / downstream pressure regulator
Kobold Low Volume Variable Area Flow Meter Areas of Application
- KDF- and KDG versions
- KDF-9… for liquids
- KDG-9… for gases
KDF/KDG-2
The flowmeters and switches for very low flows model KDF and KDG for liquids and air operate on the suspended float principle: that is, the installation position is vertical and the direction of flow is from bottom to top.
The instruments have been designed as simple and thus economical measuring systems. The float is a ball, whereby the indication point is the upper edge of the ball. A needle valve is fitted as standard.
Measuring range:
0.25 – 2.5 … 16 – 160 l/h water
0.5 – 5 Nl/h … 500 – 5000 Nl/h air
Connection: ¼” NPT, G ¼ female thread, hose nozzle 8 mm
Material: stainless steel
pmax: 16 bar
tmax: 100°C
Accuracy: ±2.5 % qG = 50 %
Option: contacts, up / downstream pressure regulator
Areas of Application
KDF- and KDG-versions
KDF-… for liquids
KDG-… for gases
Specification
- Installation position: vertical, flow from bottom
- Accuracy: • ±2.5% qG 50 acc. VDE/VDI 3513
• ±3% of full scale (upstream pressure controller)
±5% of full scale (downstream pressure controller)
(within 10-100% of measuringrange) - Max. pressure: PN16
- Process temperature: -20°C … +100°C
-20°C … +70°C with contact - Ambient temperature: -20°C … +100°C
-20°C … +70°C with contact - Protection type: IP65 (EN60529)
- Repeatability: ±1,0% FS (Differential pressure regulator): ±1,5%/2,5% FS
- Connection: ¼” NPT; G ¼ (female backward)
- Option: hose nozzle for 8 mm hose
- Weight: approx. 0.45 kg
- approx. 0.8 kg with controller
Download Datasheet: Kobold Variable Area Flowmeter-Low Volume KDF/KDG-9
Download Datasheet: Kobold Variable Area Flowmeter-Low Volume KDF/KDG-2
Reference : http://www.kobold.com
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