Description
Pressure gauge with 100 mm diameter dial with units marked in bar, psi and inches hg for vacuum as appropriate and having a BSP connection. The gauge is supplied with either:
– Ring type syphon tube and cock or a ‘U’ type syphon tube and cock.
For the following options, consult Spirax Sarco:
Pressure gauges with NPT connections.

Available pressure range
| Steel
Note: Where indicated (*) a dial with MPa units is available. |
Range | 0 to 1.6 bar | 0 to 23 psi |
| Range* | 0 to 4.0 bar | 0 to 53 psi | |
| Range* | 0 to 6.0 bar | 0 to 86 psi | |
| Range* | 0 to 10.0 bar | 0 to 145 psi | |
| Range* | 0 to 16.0 bar | 0 to 230 psi | |
| Range* | 0 to 25.0 bar | 0 to 360 psi | |
| Range | -1 to 1.5 bar | 30″ Hg to 20 psi | |
| Range | -1 to 3.0 bar | 30″ Hg to 40 psi | |
| Range | -1 to 5.0 bar | 30″ Hg to 70 psi | |
| Range | 0 to 4.0 bar | 0 to 53 psi | |
| Stainless steel | Range | 0 to 10.0 bar | 0 to 145 psi |
| Range | 0 to 16.0 bar | 0 to 230 psi | |
| Range | 0 to 25.0 bar | 0 to 360 psi |
Standards
The product fully complies with the requirements of the EU Pressure Equipment Directive/UK Pressure Equipment (Safety) Regulations.
This pressure gauge conforms to:
– DIN EN 837-1:1997-02 Pressure gauges – Part 1: Bourdon tube pressure gauges; dimensions, metrology, requirements and testing, and
– DIN EN 837-1:1997-02 Pressure gauges – Part 3: Diaphragm and capsule pressure gauges; dimensions, metrology, requirements
and testing
Certification
A certificate of conformity is available as standard for this product. A calibration certificate is available by special order at extra cost.
Sizes and pipe connections
| Pressure gauge | 3/8″ BSP male | EN ISO 228-1 | |
| Gauge cock | Gauge end | 3/8″ BSP female | |
| Syphon end | 3/8″ BSP female parallel | EN 10226-1 | |
| Ring / ‘U’ syphon | Cock end | 3/8″ BSP male taper | |
| Process end | 3/8″ male parallel | ||
Materials
| Steel | Part | Material | |
| Gauge | Case | Pressed steel | |
| Glass | Snap fit perspex | ||
| Bourdon tube | CuSh 8 (92% Cu 8% Zn) | ||
| Ring and ‘U’ syphon | Mild steel tube BS 1387 heavy grade | ||
| Gauge cock (for use up to 16 bar g) |
Body | Brass | |
| Handle | Phenolic | ||
| *For use on pressures above 16 bar g | 3/8″ M10S2 ball valve Carbon steel | ||
| Stainless steel | Gauge | Case | Stainless steel |
| Glass | Snap-fit perspex | ||
| Bourdon tube | Stainless steel 316TI | ||
| ‘U’ syphon | Stainless steel | ||
| Gauge cock | Use a Spirax Sarco 3/8″ M10S4 | Stainless steel | |
BSP Pressure Gauge with Syphon and Cock
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