All STST Pressure Gauge

All the body of the Ningdian® all STST pressure gauge is sealed, Therefore, it is filled with glycerin or silicone , but at least two points must be considered when making a specific choice: 

1. The thermal expansion coefficient, the smaller the coefficient, the better, which is mainly affected by temperature; 

2. The use occasion , Neither of these two oils can be used in the food industry. If the diaphragm is damaged, the oil will contaminate the food. It is also not recommended in places where strong oxidants are measured, otherwise it will cause an explosion. Therefore, it can be used in places with vibration, but it should be noted that it has two types of silicone oil and glycerin.

If it is used for outdoor low temperature, you must use a silicone oil meter.

Becasue of its good quality raw material--- stainless steel, Ningdian® all STST pressure gauge has the following benifits:
a) Easy to read. Indicator stabilized against vibrations and pulsations
b) Liquid lubrication and reduced motion frequency of the gears and links result in less wear and tear.
c) Protected against high-temperature and extreme temperature fluctuationsd
d) The condensation build-up is not possible
e) It is sealed, therefore resistant to highly corrosive chemical processes such as acids and salts production.
f) More expensive, cost-saving long-term
g) Consistent performance during all conditions
h) Protected against sub-zero conditions (up to -40°C)
i) Slower indicator speed due to liquid-resistance

       

Description of All STST Pressure Gauge（St St Internal）

Size:	From 1.5” to 6”
Pressure Range:	From 30inHg to 1600bar
Socket:	304 St St ,316 St St material
Thread:	BSP,NPT,BSPT,PT,ZG, and other special specification
Bourdon Tube:	316 Stainless Steel material
Lower Case :	304 St St ,316 St St material,polished or not polished, back with no screws
Bezel:	304 St St crimped bezel or 316 St St crimped bezel,bayonet
Window:	PC lens or glass lens
Dial Plate:	Single ,dual or three cales(Bar, Psi,Kg/ c㎡, Kpa, Mpa)
Accuracy:	3-2-3%,2.5%,1.6%,1%
Movement:	304 stainless steel material
Pointer:	Aluminium or stainless steel material（adjust type）
U-Clamp:	304 St St material
Flange:	304 St St material
Restrictor:	304 St St material
Over Pres sure:	130%