Capsule Pressure gauges are designed for measuring low/very low pressures and vacuum. The pressure medium needs to be gaseous. The capsule consists of two diaphragms joined and sealed around their circumference. Several such capsules may be combined to enable measurement of very low pressures. Normally, pressure is applied to the inside of the capsule, which changes shape as a result. By means of a link and gear movement system, this deflection is converted into rotation of a concentric pointer indicating pressure on a dial.

Technical Specification
Dial size	100 MM/150 MM
Accuracy	1% of Range Span
Sensing Element	Capsule
Capsule Material	AISI 316 SS
Movement Maters	AISI 304 SS
Enclosure	Cast Aluminium weather proof stove enamelled black AISI 304 SS weather proof self colour finish
Mounting	Direct with bottom entry
Direct Panel	Panel Mounting back entry (cut out = 167 mm)
Capsule Chamber	Cast aluminium stove enamelled black
Connection Material	AISI 316 SS
Connection Size	½" BSP (M) ½" NPT (M). M 20 x 1.5 or Equivalent
Range	See Below

 

Standard Ranges in MMWC
Pressure	Vacuum	Compound
0-100	-100 to 0	-50 to 0 to +50
0-160	-160 to 0	-80 to 0 to +80
0-250	-250 to 0	-125 to 0 to +125
0-600	-600 to 0	-300 to 0 to +300
0-1000	-1000 to 0	-500 to 0 to +500
0-1600	-1600 to 0	-800 to 0 to +800
0-2500	-2500 to 0	-1250 to 0 to +1250
0-6000	-6000 to 0	-3000 to 0 to +3000

 

Capsule Pressure Gauge

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