IN-LINE
GI21S Gauge Isolator
Female-to-Female
13 01/14
4.25.1
www.deltrolfluid.com
( ) Parentheses = Millimeters
HOW TO ORDER
INSTALLATION DIMENSIONS
DESCRIPTION
The Pneu-Trol gauge isolator valve is designed to prevent surge damage to
a gauge in all types of hydraulic circuits. The gauge isolator valve also acts
as a snubber to prevent damage to other hydraulic components –
hydraulic chatter, pulsation and fluid hammer can cause costly down time
of equipment.
Simple to operate – just push to read. Depressing the knob allows fluid to
flow around the spool to the gauge. When the spring-loaded knob is
released the spool is automatically returned to the closed position, allowing
the fluid to drain from the gauge out the tank port.
For hydraulic applications only
Push to operate – spring return
Legible instructions knob – “Push To Read”
Panel or bracket mountable
SPECIFICATIONS
Maximum Operating Pressure
(Non-Shock Service)
Carbon Steel: 3,000 psi (207 bar)
Operating Temperature Range
-30° to +250° F (-54° to +120° C)
Internal Leakage Pressure Port
To Tank Port
20 cc/min. max at 2,500 psi (172 bar)
Threads
NPTF 1/4"
Stroke
1/4" (6.4)
Size
NPTF Thread
Steel
Orifice
1/4"
GI21S .020"
GI21S-C5 .062"
Gauge Port Orifice
.020" (.51 mm) and .062" (1.57 mm)
Panel Mounting Hole Size
31/32" (24.6)
Materials
Body, Plugs, Retainers: Steel
Spool: Hardened Steel
Spring: Music Wire
O-Rings: Buna-N
Back-Up Washers: Teflon
Set Screw: Steel
Knob: Blue Anodized Aluminum
Panel Mount Nut: Nickel Plated Brass
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