MICRO high quality bellow operated differential pressure gauges are built with stainless, chrome- nickel steels (i.e. S.S.316 or better) mounted on a force balance frame, enables direct reading of the actual differential Pressure. They can be used under all operational conditions, practically without limitations. Their concept combines sturdy design and high measuring accuracy. Each bellow of the instrument can withstand full static pressure without any damage or shifting being caused to the instrument.
 
(Confirming to EN-837)
Nominal size
Ø 150 mm
Accuracy
Up to 1 bar ±1.6% of FS
1 bar to 6 bar ±1% of FS
Case & Bezel
SS 304 case with Snap Action bayonet lock type bezel (SS 316 Optional)
Ingress Protection
IP 65 as per EN 60 529 or IS/IEC 60 529
IP 68 as per IS/IEC 60 529 – Optional
Pressure element —Bellows
SS 316
Static Pressure
Up to Ranges 0.6 bar : 6 bar
1 bar to 2.5 bar : 25 bar
4 to 6 bar : 40 bar
Movement
Accurate amplifying SS 304 Movement driven by
means of flexible blades attached to force balance
welded frame
Socket
SS 316
Dial
Aluminium —Pre-coated White with black marking
Pointer
Aluminium —Black Finish Micro Zero Adjustment
Window
4 mm thick Toughened Glass
(Safety / Shatter Proof Optional)
Joints
Argon welded
Sealing gasket
Neoprene Rubber (EPDM Optional)
Blow out protection
Neoprene Rubber (EPDM Optional)
Pressure relief
Top of Case with Vent Valve (On Request)
Process Connection —(HP & LP)
1/4” / 3/8” / 1/2” BSP / NPT / BSPT (Male)
M20 X 1.5 (Male)
Permissible temperature
Ambient : -25'C to 6'0C
Process : Maximum 100'C
Type of mounting
Bottom Connection Direct Mounting
Bottom Connection Surface Mounting
Pipe or Yoke Mounting
Differential Pressure ΔP range
1000 mmWc… 4000 mmWc ... up to 6 bar
Optional Available features
• Liquid Filled Case
• Electrical Contact
• Pressure Equalizing Valve
• Maximum pointer Follower
• Diaphragm Seal unit suitable to process medium
with Capillary Extension