Heinrichs K32 with Glass Tube Low Volume Variable Area is suitable for flow measurement of liquid or gaseous products in pipes. It shows the current flow rate in volume or mass per unit in time. Flow measuring of liquids and gas can be used in the chemical industry or medical or laboratory engineering.

Precision, reliability, and efficiency are the remarkable features of this device. This device is a robust mechanical system with a low-rate of wear. The variable-area flowmeter consists of a stainless steel device with an integrated conical measuring tube made of glass and a vertically movable float. The valve for setting the flow rate is built-in.

Heinrichs K32 Applications

Flow metering of liquid or gaseous products in pipelines. The current flow rate in volume or mass per unit in time is displayed.

Approvals and certificates

  • Explosion protection: (for mech. instruments) ) II 2GD IIC TX
  • Contacts: (P&F) PTB 00 ATEX 2128 X (with limit switches)
  • Ignition category: II 2G EEx ia IIC T6-T4
  • Contacts: (ifm) BVS 08 ATEX E026,
  • IECEx BVS 09.0016
  • Ignition category: II 1G Ga Ex ia IIC T4/T5/T6
  • II 1D Ex iaD 20 T125°C
  • CE-mark: Ex-guidelines 94/9/EG
  • EMC: EMC-guidelines 2004/108/EG
  • PED: 97/23/EG


K32-R-V / N with inlet or outlet differential pressure regulator
Version K32-R-…V for fluctuating outlet pressure
Version K32-R-…N for fluctuating inlet pressure

Another Article:

Heinrichs K32 Technical Data:

Glass tube: Borosilicate glass
Float: st.st. 1.4401 (316), glass,
Body, connections: 1.4404 (316 L) (others on request)
Process connections:  ¼” NPT (F), G ¼ , PVC hose (others on request)
Max. pressure: PN 16
Process temperature: -20°C to +100°C
-20°C to +70°C (with limit switches)
Ambient temperature: -20°C to +100°C
-20°C to +70°C (with limit switches)
Ingress protection: IP 65 (EN 60529)
Liquids / gases: /- 1 % qG 50 acc. VDE/VDI 3513
V / N (differential pressure regulator) +/- 2,5 % / +/-5 % FS
within 10-100% of the range
Liquids / gases :  +/- 0,3 % FS
V / N (differential pressure regulator) +/- 1,5 % / 2,5 % FS
Electrical outputs:  inductive limit switches

Download Catalog: Low Volume – variable area Model K32- with glass tube Heinrichs

Ref: Heinrichs.com