156268 Gems Sensors Inc, 156268 Datasheet - Page 3

• Manufacturer Part Number: 156268
• Description: Flow Switch
• Manufacturer: Gems Sensors Inc

Specifications of 156268

• Accuracy: +/-5%
• Operating Pressure Range: 200psig At 70°F
• 100psig Max. At 212°f: Circuitry
• Body Material: Brass
• Contact Current Ac Max: 300mA
• Mounting Type: Conduit
• Contact Voltage Ac Max: 110V
• Port Size: 0.5"
• Circuitry: SPDT
• Connection Size: 1/2"
• Features: Visual Flow
• Flow Range: 4 To 20 GPM
• Flow Rate Max: 20GPM (US)
• Rohs Compliant: No
• Accuracy %: 5%
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

F-8
Easy Installation and Maintenance
A proper installation will enhance RotorFlow sensor performance. Install using
standard pipe fitting tools; horizontal fluid lines are recommended. For further
installation and maintenance recommendations, refer to one of the following
instruction bulletins: RFO Types–Part Number 157258; RFI Types–Part Number
157259; RFS Types–Part Number 157261.
Since their function is to monitor dynamic fluid flow, naturally the rotor will react to
turbulence, pulsation, entrained air, and other flow anomalies induced in the flow
stream by other process hardware. For optimum performance, install RotorFlow units
where nominal flow conditions exist with ports located at the top. Incoming flow may
be placed to either port; a minimum of 8 inches (20 cm) of straight pipe on the inlet
side is required. When operating in the low flow range, the supplied Low Flow Adapter
must be installed in the incoming port.
Except for straight-thread versions, RotorFlow sensors connect to piping via NPT
mating thread forms. . The use of an appropriate thread sealant is necessary to assure
a leak-tight connection. Permatex “No More Leaks
the only sealants recommended for GEMS flow sensors. Straight-thread versions
require an O-ring for sealing.
150 micron filtration is recommended. However, should foreign particles enter the
RotorFlow sensor, accumulation is easily cleared by removing the lens from the body.
The lens is removed by turning its 7/16˝ hex center hub 45° counter-clockwise with
a standard socket wrench. To reinstall the lens, simply reverse the process. Pressure
must be relieved from the system prior to sensor clean-out. O-rings should be
lubricated prior to re-assembly.
Low Flow Applications
A low flow adapter is supplied with all Rotorflow units. It is used to produce accurate
response at low flow rates. Install the adapter, as shown above, in the port selected
for incoming flow.
RotorFlow
are Yours for the Asking.
Gems caters to OEM needs with special configurations
that go beyond the standards in this catalog. We can
provide RotorFlow sensors with enhanced chemical
compatibility, higher temperature and pressure
capabilities, and alternate electrical terminations.
Other Capabilities Available to OEMs:
• Electrical outputs: Combined switch and frequency;
• Custom face plate
transistor switching; 0-10 VDC analog.
(cast stainless steel
face plate pictured)
®
Sensor Special Capabilities
(20 CM)
8˝ MIN
Low Flow
Adapter
Visit www.GemsSensors.com for most current information.
(20 CM)
8˝ MIN
®
Low Flow
Adapter
” or 2 wraps of Teflon
Polysulfone, Stainless Steel
or Polypropylene Lens
Silicon or Other Material
Buna N, Viton, EPDM,
®
Incoming
Flow
O-Rings
tape are
Incoming
Flow
with Teflon
Loaded Bushing
PPS Composite
Panel Mounting
Plastic Bodies. Two (2) mounting ears are provided
at the body center line to receive #8 self-tapping
screws to accommodate panel mounting of the plastic
RotorFlow units. Note: ANSI T type 23 self-tapping
screws are recommended. They may be replaced with
standard machine screws if re-installation should be
required.
Brass and Stainless Steel Bodies. Two (2) mounting
holes are provided on the body centerline, as shown
below. #8-32UNC-2B screws are required for mounting.
RotorFlow
Rebuild your RotorFlow
than 5 minutes with one of these kits.
Includes:
We are committed to providing our customers with the
product that best meets the requirements of their
applications. Please call us and tell us what you need,
and ask us about Swagelok
options, and 9/16˝ and 3/4˝ straight-thread versions.
Call 800-378-1600
1/4˝ & 1/2˝
3/4˝ & 1˝
– Stock Items.
Rotorflow
• Ceramic Rotor Pin
• 6-Pole Magnetic Rotor with PPS/PTFE Bushing
• Buna N or Viton
• Polysulfone Lens
Line
®
Size
or Nylon
Panel Mounting
®
Brass/SS
Brass/SS
Material
®
Plastic
Type
Body
Tabs
Maintenance Kits
2.50˝ (63.5 mm)
Long-Life
Rotor Pin
2.50˝ (63.5 mm)
2.50˝ (63.5 mm)
Ceramic
®
2.50˝ (63.5 mm)
Material
2.50˝ (63.5 mm)
2.50˝ (63.5 mm)
Buna-N
O-Ring
Viton
Viton
®
in Kit
O-Ring
Sensors and Switches in less
®
®
®
tube fittings, faceplate
Polypropylene, Stainless
RFA/RFO/
155870
167364
182695
Hydrolytically Stable
RFS
Steel or Brass
Part Numbers
RF-2500 Sensors
155872
166267
157187
RFI