Manogauge capillary pressure gauge - type 2 model ZX-11-2. Range 0–6 bar. Accuracy ±2.5%. Steel. Connection Custom. 2 configurations available. ISO 9001 / CE / KS certified.
| Pressure Range | 0–6 bar |
| Dial Size | Ø40mm |
| Material | Steel |
| Accuracy | ±2.5% |
| Connection | Custom |
| Filling | Dry |
| Configurations | 2 variants |
| Capillary tube length | 1 m, 2 m, 5 m, 10 m (stainless steel armoured; specify at order) |
| Capillary OD | 5 mm (1/5") with stainless steel braid armour standard |
| Separation benefit | Gauge body located up to 10 m from hot, vibrating, or hazardous process |
| Capillary fill fluid | Glycerine (standard); silicone oil (optional for <−20 °C or oxygen service exclusion) |
| Media temp. range | −20 °C to +200 °C (glycerine capillary); −40 °C to +200 °C (silicone) |
ZX-11 vs capillary pressure gauge assemblies across market tiers
| Feature | Manogauge ZX-11 | European Tier-1 | American Tier-1 | Generic (unbranded) |
|---|---|---|---|---|
| Price range (USD) | $22–55 | $70–150 | $80–170 | $10–25 |
| Accuracy class | Class 1.6 / Class 2.5 | Class 1.6 | Class 1.0 | Class 2.5 |
| Capillary lengths | 1–10 m standard; up to 25 m | 1–25 m standard | 1–20 m standard | 1–5 m typical |
| Fill fluid options | Glycerine / silicone opt. | Glycerine / silicone | Glycerine / silicone | Glycerine only |
| Diaphragm seal compatible | Yes — standard option | Yes — wide range | Yes — wide range | Limited options |
| Lead time | 7–14 business days | 4–8 weeks | 5–10 weeks | 5–10 days |
| Minimum order | No MOQ | No MOQ | No MOQ | 10–20 units typical |
| Custom dial | Yes — no tooling fee | Available, setup fee | Available, setup fee | Limited options |
| IP rating | IP65 gauge body std. | IP65 typical | IP65 typical | IP54 typical |
The capillary tube hydraulically connects the process connection (diaphragm or Bourdon socket at the process end) to the Bourdon tube inside the gauge case. It allows the gauge indicator to be installed at a convenient location — up to 10 m — away from a hot, inaccessible, or hazardous process point.
Minimal lag: fill fluid transmits pressure almost instantaneously. The filled capillary adds a small hydrostatic correction proportional to the height difference between the process connection and the gauge face — approximately 0.1 bar per metre of height difference (glycerine). Compensate by zeroing the gauge at the installation height.
Yes. The armoured capillary can be bent to a minimum radius of ~50 mm and coiled for slack. Do not kink sharply — it will restrict flow and add error. Use the supplied excess length in a loose coil near the process connection to absorb vibration.
The stainless-steel braid armour is rated to +400 °C. Glycerine fill: up to +200 °C. Silicone oil: up to +200 °C. Above 200 °C process temperature, a direct Bourdon insertion (with siphon) or a diaphragm seal assembly is a better solution.
Yes — this is the most common configuration for corrosive or viscous media. A flush or threaded diaphragm seal is welded or clamped to the process nozzle; the capillary connects the seal to the gauge case. Specify diaphragm material (316L, Hastelloy, tantalum) and connection type at order.
Fill fluid leaks, the gauge reads zero or erratically, and the process is no longer sealed. Replace the entire capillary assembly — do not attempt field repair. Keep a spare assembly for critical measurement points.
Glycerine: most applications, −20 °C to +200 °C, low cost. Silicone oil: outdoor/cold climates below −20 °C, or where glycerine viscosity change is problematic. Avoid glycerine in oxygen service — silicone oil is the correct choice and must be confirmed O₂-clean.
Standard: 1 m, 2 m, 5 m, and 10 m. Custom lengths up to 25 m are available with increased lead time. Longer capillaries add hydrostatic correction and slight response lag — 10 m is adequate for most industrial applications.
Yes. The armoured capillary absorbs machine vibration; the gauge body can be panel-mounted remotely. This is one of the primary use cases for the capillary assembly — it isolates the sensitive gauge movement from vibration at the process end.
Generally not — the capillary fill fluid provides inherent pulsation damping. For severe pressure spikes (valve slam), a piston snubber at the process end is still recommended in addition to the capillary.