KDM - All-Metal Armored Flowmeters

KDM - All-Metal Armored Flowmeters

Special Features:

Short Installation Length
SS, PTFE or Hastelloy Wetted Parts
Analog Output Available
– 110 °F to + 390 °F Temperature Range (Higher on Request)
Pressures to 300 lb ANSI (Higher on Request)

Specifications:

Measuring Switching range:
- 0.011 - 0.11 GPM ... 44 - 440 GPM (water)
- 0.041 - 0.41 SCFM ... 29 - 290 SCFM (air)
Fitting: 1/2" - 4" ANSI, 1/2" - 2" NPT
Material: 316-Ti SS
Max. pressure: 580 PSIG
Max. temperature: 390 °F
Accuracy class: +/-1.6% FS, +/-2.5% FS
Options: contacts, analog output, totalizer

GENERAL DESCRIPTION:

The KDM variable area flow meter is ideal for difficult applications requiring high pressure operation or low pressure loss. Its all metal, armored design is available in stainless steel, PTFE clad stainless steel, or Hastelloy C4.

In standard configuration, the KDM is a purely mechanical meter. However, electronic limit switches or an analog flow transmitter may be added if so desired. Switches and analog outputs are available which operate in an intrinsically safe mode and may be used with explosive gases in intrinsically safe installations.

The indicator translates the linear motion of the float into an indication via a direct magnetic coupling.

Specifications

Accuracy
Metal Versions: ± 1.6% F.S.
PTFE Version: ± 2.5% F.S.
Fittings: ANSI Flanges 150 lb or 300 lb RF
Wetted Parts
Standard: 316-Ti SS (Viton seal in NPT versions)
Optional: PTFE clad SS or Hastelloy C4
Damping System: Sapphire
Operating Temperature
Ambient: – 10 to 140 °F
Medium
No Options: – 110 to 390 °F
With Options: – see table
PTFE Clad: – 110 to 160 °F
High temperature versions on request
Maximum Pressure
NPT Thread: 580 PSIG
Flanged: Per ANSI B16.5
High pressure units on request

Electrical Characteristics
Switches (optional)
Standard
Type: Proximity, 3-wire
Power: 10-30 VDC
Output: PNP, 100mA Max.
Intrinsically Safe
Type: Proximity
Output: NAMUR
Rating: EEx ia IIC T6
Analog Output (optional)
Type: 2-wire 4–20 mA
Input (Vcc): 12.7 to 30 VDC
Max. Load (Ω): Vcc-12 V/0.02 A
Resolution: + 0.5% F.S.
Repeatability: + 0.1% F.S.
Rating: EEx ia ll C T6 EEx ib ll C T6
(applies to intrinsically safe version only)
Housing: NEMA 4
Counter: 6-Digit LED resettable (M9 indicator only)
Optional Steam Jacket
Fittings:
ANSI Flange
NPT

Meter Selection:

The KDM flow meter series can be calibrated to provide direct reading scales for a variety of media. To do a custom calibration, We require information on media density, viscosity, the operating temperature and the operating pressure. It is required that option -D, the damping mechanism, be added for all gas applications whose downstream pressure is less than 7 PSIG. This is necessary to prevent unstable operation of the float. Addition of the damping mechanism increases the meter’s pressure loss to 4.3 PSI. Once an appropriate range has been selected, refer to the Ordering Table on the next page and assemble a part number.

KDM Flow Ranges