Metric Dimension
Item | Model | |||||
---|---|---|---|---|---|---|
KM-11 | KM-22 | KM-23 | KM-31 | KM-41 | ||
Media | Air | |||||
Operating Pressure | 0 ~ 0.9 MPa (0 ~ 9.2 kgf/cm2) | |||||
Proof Pressure | 1.1 MPa (11.5 kgf/cm2) | |||||
Temperature Range | 5 ~ 60 ºC | |||||
Material | Body | Polyproplene (Duracon) | ||||
Filter | Polyvinyl alcohol (sponge, filtration: 5 μm) | |||||
Specifications | A(RC) Port Size | RC1/8 | RC1/4 | RC1/4 | RC3/8 | RC1/2 |
B | 16 | 16 | 20 | 26 | 28 | |
C | 7 | 10 | 10 | 12 | 15 | |
D | 33 | 36 | 62.5 | 68 | 71 | |
E Across Flats | 14 | 14 | 17 | 24 | 24 | |
Effective Area (mm2) | 15 | 21 | 43 | 65 | 74 | |
Noise Suppression (dB) | 18 | 18 | 18 | 27 | 34 | |
Weight (g) | 4 | 4.5 | 18 | 19.5 | 22 | |
Sales Unit | 10 pcs (set) |
Q1: How much noise reduction can the KM plastic mufflers provide?
A: Up to about 34 dB depending on model and site conditions. Actual results vary with exhaust flow, background noise, and mounting position.
Q2: Can the filter be washed and reused?
A: Yes. Remove the PVA element, rinse with water or a mild cleaner, and let it dry completely before reassembly. Avoid strong solvents or high-temperature drying.
Q3: How do I choose between resin and brass mufflers?
A: Resin is lighter, corrosion-resistant, and cost-effective for general pneumatic use. Metal types are typically chosen for higher temperatures, higher pressures, or harsher oil-mist environments.
Q4: Will it slow down my valves or cylinders?
A: The low-back-pressure design minimizes impact on actuation. For very high flows or ultra-short cycle times, validate back pressure and cycle time on the machine.
Q5: Is it suitable for vacuum or vacuum-break exhausts?
A: Yes, provided flow and particle-management needs are met. In cleanliness-critical areas, increase cleaning/replacement frequency.
Q6: How should I assess temperature and pressure limits?
A: Refer to the datasheet and compare with your operating pressure and ambient temperature. Exceeding limits may raise back pressure or degrade materials.
Q7: What should I do if noise rises or back pressure increases over time?
A: Clean or replace the element and check for sludge/dust clogging. Also verify that the exhaust path is not narrowed or obstructed.
Q8: How do I set a maintenance interval?
A: Start with a 2–4 week interval based on dust/oil-mist levels, monitor pressure drop and noise, then fine-tune to an optimal cadence.
Q9: Any compatibility cautions with my equipment?
A: Confirm thread spec, rated flow, and allowable back pressure. Avoid excessive restriction on devices that require very low exhaust back pressure.
Q10: Can I drop-in replace my existing mufflers?
A: Usually yes, but verify thread, space envelope, rated flow, and environment. Pilot-test before full deployment.