Manogauge refrigerant pressure gauge - radial model ZX-10-R. Range 0–800 psi. Accuracy ±1.6 / 2.5%. Steel. Connection 7/16" UNF. 2 configurations available. ISO 9001 / CE / KS certified.
| Pressure Range | 0–800 psi |
| Dial Size | Ø50–80mm |
| Material | Steel |
| Accuracy | ±1.6 / 2.5% |
| Connection | 7/16" UNF |
| Filling | Dry |
| Configurations | 2 variants |
| Refrigerant compatibility | R-22, R-134a, R-404A, R-407C, R-410A, R-32, R-448A, R-449A, R-452A, ammonia (R-717) |
| Dual scale | PSI (outer) + saturation temperature °C or °F (inner) for common refrigerants |
| Connection | 1/8" ACME (SAE J639) standard; flare fitting adapter available |
| Colour coding | Blue (suction/low-side); Red (discharge/high-side) — per HVAC/R industry convention |
| Max range | 0–800 psi (low-side: 0–250 psi standard); compatible with manifold gauge sets |
ZX-10 vs refrigerant pressure gauges across market tiers
| Feature | Manogauge ZX-10 | European Tier-1 | American Tier-1 | Generic (unbranded) |
|---|---|---|---|---|
| Price range (USD) | $8–20 | $25–55 | $28–60 | $3–8 |
| Accuracy class | Class 1.6 / Class 2.5 | Class 1.6 | Class 1.6 | Class 2.5 |
| Dual PSI/°C scale | Yes — standard | Yes — standard | Yes — standard | PSI only typical |
| Refrigerant coverage | R-22 to R-32 + NH₃ | Wide range | Wide range | R-22/R-134a typical |
| Colour coding | Blue/Red per SAE J639 | Blue/Red std. | Blue/Red std. | Varies by model |
| Lead time | 5–10 business days | 2–4 weeks | 3–5 weeks | 3–7 days |
| Minimum order | No MOQ | No MOQ | No MOQ | 50–200 units typical |
| Max range | 0–800 psi | 0–800 psi | 0–800 psi | 0–500 psi typical |
| Ammonia (R-717) rated | Yes — SS option | Yes — SS option | Yes — SS option | Varies by supplier |
ZX-10 uses steel Bourdon tube and socket, compatible with R-22, R-134a, R-404A, R-407C, R-410A, R-32, R-448A, R-449A, R-452A, and ammonia (R-717). Not suitable for refrigerants that require copper-free systems without the SS option, and not for CO₂ (transcritical systems require >100 bar ratings). Confirm specific refrigerant at order.
The inner scale shows the saturation temperature corresponding to the pressure reading for a specific refrigerant. For example, on an R-410A gauge, 250 psi on the outer scale aligns with approximately 30 °C on the inner scale — this is the condensing temperature at that pressure. This eliminates manual PT chart lookup during commissioning and service.
Low-side (suction/blue): typically 0–250 psi, reads evaporating pressure and suction superheat. High-side (discharge/red): typically 0–500 or 0–800 psi, reads condensing pressure and subcooling. ZX-10 is available in both ranges; specify colour and range at order.
Yes. R-410A operating pressures: evaporating ≈ 120–170 psi; condensing ≈ 250–400 psi. The 0–500 psi high-side range covers normal R-410A service. For safety, gauges used on R-410A must be rated for at least 1.5× maximum operating pressure — ZX-10 high-side at 800 psi meets this.
1/8" ACME (SAE J639) — the standard thread for refrigerant service connections and manifold gauge sets. This ensures compatibility with all standard HVAC/R service hoses and quick-connect adapters.
Blue case/bezel = low-pressure (suction) side. Red case/bezel = high-pressure (discharge) side. Yellow is used for the manifold centre port (refrigerant supply). This three-colour system is universal in the HVAC/R industry and is maintained on ZX-10.
Class 1.6 (±1.6% FS) standard. On a 500 psi scale, this equals ±8 psi — sufficient to distinguish suction superheat differences of 5°C. Class 2.5 is available for training or display-only applications.
Yes. ZX-10 uses steel (not copper or brass) wetted parts — ammonia is incompatible with copper alloys. For ammonia service, specify SS Bourdon tube and socket at order. Ensure the connection thread is compatible with the ammonia service valve fitting.
Generally not in normal refrigerant service — compressor pressure pulsations in HVAC/R systems are moderate. In large industrial ammonia or CO₂ compressor circuits with high pulsation amplitudes, a miniature piston snubber on the 1/8" ACME port is recommended.
Annual calibration is recommended for professional service gauges. Refrigerant gauge accuracy degrades if left connected to a charged system — internal moisture and refrigerant contamination affect the Bourdon tube. Use the gauge, disconnect, and store with caps in place.