SF Fearless All Stainless Steel Series Pressure Gauges

SKU: SF_Series Categories: , ,


Fearless Under Pressure All Stainless Steel Pressure Gauges offer vibration and pulsation resistant readings similar to a liquid filled gauge via AISI Stainless Steel special dampened movement.  This model is suitable for use with gas or liquid media. Can be liquid filled for extreme applications.

Case is watertight.

This low maintenance gauges offers long service life and easy shipping, handling, and storage.  1/4 turn bayonet lock removable bezel ring allows the window to be replaced.  In Situ Calibration via micro adjustable gear drive pointer.


Case Size

4 inches (100 mm)

Case Material

AISI 304 Stainless Steel, watertight


AISI 304 Polished Stainless Steel Bayonet Bezel Ring
1/4 turn Bayonet lock removable


Safety Glass, Standard
Acrylic, Optional


AISI 316 Stainless Steel socket and tube. Argon welded.


1/2 inch NPT.
1/4 inch NPT available (special order)

Optional 1/2 inch NPT to 1/4 inch NPT stainless steel adapter available separately.
Autoclave fitting (Option Code C) with is standard and required on ranges of 25,000 PSI and up. (Must specify Male or Female fitting)


± 1% on ranges below 10,000 PSI
±1.6% on ranges 15,000 PSI and above

Bourdon Tube

AISI 316 Stainless Steel


AISI 304 Stainless Steel special Dampened Movement with wear resistant, self-lubricating gears


Balanced black aluminum. Micrometer adjustable.


White aluminum with black markings in accordance with ASME B40.1 -2005

Scales Available

Dual Scale

Ambient Temperature

-40° to 185°F (-40° to 85°C)

Process Temperature Limits

-40° to 176°F (-40° to 80°C). 100°C Max.

Overpressure Limits

20% of Full Scale

Available PSI Ranges

15 PSI*
30 PSI*
60 PSI*
100 PSI*
160 PSI*
200 PSI
300 PSI*
400 PSI
800 PSI
1000 PSI
1,500 PSI
2,000 PSI
3,000 PSI
4,000 PSI
5,000 PSI*
6,000 PSI*
7,500 PSI
10,000 PSI
15,000 PSI
20,000 PSI
25,000 PSI (Specify male or female Autoclave fitting)
30,000 PSI (Specify male or female Autoclave fitting)

*Usually in stock

Available Vacuum Ranges

-30 inches of HG to 0 inches of HG

Available Compound Ranges

-30 inches of HG to 15 PSI
-30 inches of HG to 30 PSI
-30 inches of HG to 60 PSI
-30 inches of HG to 100 PSI
-30 inches of HG to 160 PSI

Available Mounting Styles

Stem Mount, Lower Connected
Stem Mount, Back Connected (special order)
Flush Mount, Back Connected, U clamp (special order)
Flush Mount, Back Connected, Front Flange (special order)
Surface Mount, Lower Connected, Rear Flange (special order)


Wet (Glycerin fill standard)
Optional Silicone Fill available

Blow Out Disc

Optional Blow out disc option available for Dry or Glycerin filled gauges only. Must be specified with option code Y at time of order. Contact factory for availability and lead times.


Oxygen cleaning available

IP Rating

Dry: IP65
Wet: IP65