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- KPM- pneumatic bellows valve
- Category：Pneumatic control valve
product manual
KPM- pneumatic bellows valve is in single seat pneumatic (sleeve) based control valve with bellows for sealing, the guide structure, valve has the advantages of compact structure, with a streamlined S channel, the pressure drop, flow is large, wide adjustable range, high precision flow characteristics, conforms to the IEC534 standard. Valve leakage in line with ANSI B16.104 standard.
Characteristic.
The pneumatic bellows valve equipped with multi spring diaphragm actuator, which has the advantages of compact structure, large output force. Products comply with GB/T4213-92.
Applicable scene:
The pneumatic bellows valve on the valve cover with bellows seal structure, suitable for regulating extremely toxic, flammable volatile and rare and precious metal medium. In addition the pneumatic bellows seal valves can also be used in the vacuum.
Technical parameters:
| Nominal diameter (DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Seat diameter (dn) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
| The rated flow coefficient (KV) | Single seat | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 630 | 875 | 1250 |
| Sleeve | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 155 | 250 | 370 | 580 | 900 | 1300 | |
| To allow pressure (MPa) | Single seat | 3.8 | 3.2 | 3.0 | 2.0 | 1.8 | 1.5 | 1.4 | 1.0 | 0,7 | 0.6 | 0.5 | 0.3 | 0.1 |
| Sleeve | 6.4 | 6.4 | 5.2 | 5.2 | 4.6 | 4.6 | 3.7 | 3.7 | 3.5 | 3.1 | 3.1 | 2.6 | 2.2 | |
| Nominal pressure (MPa) | 1.6、2.5、4.0、6.4 | |||||||||||||
| Rated stroke (mm) | 16 | 25 | 40 | 60 | 100 | |||||||||
| Actuator model | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | ZHA/B-56 | |||||||||
| Flow characteristics | Equal percentage, linear | |||||||||||||
| The valve cover form | Bellows seal-40～+350℃ | |||||||||||||
| The gland form | Bolt clamp | |||||||||||||
| The sealing filler | V PTFE, V type of flexible graphite packing | |||||||||||||
| Spool form | The single seat, sleeve type | |||||||||||||
Structure diagram:
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