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ZJHW Sanitary Pneumatic Control Valves
Suitable for a variety of pressure, temperature, flow and other physical quantity adjustments, such as food, pharmaceutical, cosmetics, clean steam, alcohol, beverages, and biochemical industrial process control applications. ZJHW sanitary pneumatic control valve has the advantages of compact structure, convenient assembly and disassembly, high adjustment accuracy, especially low pressure loss, large flow, wide adjustable range, high flow accuracy, and fully conforms to IEC534-1-1978 standard. Pneumatic health control valve leakage in accordance with ANSIB16.104 standards, ZJHW sanitary pneumatic control valve equipped with different multi-spring actuators, output power. ZJHW sanitary pneumatic valve angle design ensures that the valve self-discharge, standard electronic polishing, smooth surface to ensure clean, no media storage area, will not produce potential pollution. Quickly disassemble the valve body and bonnet to make the valve open and repair quickly and easily, and shorten the process downtime.
| Nominal diameter DN(mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | |
| Valve seat diameter dN(mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | |
| Rated flow coefficientKV |
Linear | 5.2 | 6.3 | 6.9 | 11.2 | 17.6 | 27.5 | 44.7 | 69.3 | 110 |
| Equal percentage | 4.8 | 5.6 | 6.3 | 10.5 | 16 | 25 | 40.5 | 63.6 | 100 | |
| Rated route(mm) | 10 | 16 | 25 | 40 | ||||||
| Actuator model | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | |||||||
| Nominal pressure | Clamp type, thread type (no special requirements are subject to the clamp type connection) | |||||||||
| Valve cover form | standard type-17～+230℃、High temperature type+230～+450℃ | |||||||||
| Capping type | Bolt compression type | |||||||||
| Seal packing | EPDM rubber、Polytetrafluoroethylene | |||||||||
| Valve body material | 304、316、316L | |||||||||
| Valve core form | single seatPlunger type valve core |
| Flow characteristics | Linear, equal percentage |
| valve core material | 304、316、316L |
| Actuator category | ZHA/B Multi-spring film actuator | ||||
| Actuator model | ZHA/B-22 | ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | ZHA/B-56 |
| Effective area(cm2) | 350 | 350 | 560 | 900 | 1400 |
| route (mm) | 10、16 | 24 | 40 | 40、60 | 100 |
| Spring range(KPa) | 20～100（standard）、20-60、60-100、40-200、80-240 | ||||
| Diaphragm material | Nitrile rubber clip nylon cloth, ethylene propylene rubber clip nylon cloth | ||||
| Air supply pressure | 140～400KPa | ||||
| Air interface | RC1/4" | ||||
| Ambient temperature | -30～+70℃ | ||||
| equipped with accessories | Locator, air filter pressure reducer, position valve, route switch, valve positioner, handwheel mechanism, etc. | ||||
| Form of action | Air-to-close (B)—Valve open (FO) when deaeration; Air-opening (K)—Valve off (FC) when deaeration | ||||
| Item | Without positioner | With positioner | ||
| Basic error % | ±5.0 | ±1.0 | ||
| Backlash % | 3.0 | 1.0 | ||
| dead zone % | 3.0 | 0.4 | ||
| Starting to end point deviation % |
Air open | Starting point | ±2.5 | ±1.0 |
| Starting point | ±5.0 | ±1.0 | ||
| Air shut | Starting point | ±5.0 | ±1.0 | |
| end point | ±2.5 | ±1.0 | ||
| Rated route deviation % | ≤2.5 | |||
| Leakage L/h | 0.01%× Valve rated capacity | |||
| Adjustable range R | 30：1 | |||
