cryogenic pneumatic control valve
cryogenic pneumatic control valve
Technical specification
2.1 Date sheet
| Pneumatic cryogenic control valve Muviri mhando: | zvakananga kuburikidza nekukanda globe mhando |
| Valve plug type: | non-balanced single seat plug type |
| Saizi yezita: | DN20~200,,NPS 3/4〞~ 8〞 |
| Nominal pressure: | PN16 ~ 100,CLASS 150LB ~ 600LB |
| Kubatanidza: flange: | FF,RF,MF,RTJ |
| Welding: | SW,BW |
| Flange dimension: | Maererano neIEC 60534 |
| Pneumatic cryogenic regulating valve Bonnet type: | Ⅲ:Low tembiricha yakawedzerwa mhando(-196℃~ 45℃） |
| Packing: | V mhando PFE kurongedza, flex.graphite kurongedza, nezvimwe. |
| Gasket: | Metal graphite kurongedza |
| Pneumatic cryogenic regulating valveActuator: | Pneumatic: multi-spring diaphragm actuator, piston type actuator. |
2.2 Cryogenic control valve chimiro kudhirowa
2.3 Cryogenic control valve material list
| Zita rechikamu | Kudzora Valve Material |
| Muviri/Bhoneti | LCB/LCC/LF2/CF8/CF8M/CF3M |
| Valve spool/Seat | 304/316/316L (yakafukidza stellite alloy) |
| Packing | Zvakajairika:-196～150℃iri PTFE |
| Gasket | Zvakajairika: Simbi isina simbi ine inoshanduka graphite, Yakakosha: Metal zino mhando gasket |
| Diaphragm Cover | Zvakajairika:Q235,Special:304 |
| Diaphragm | NBR ine yakasimbiswa polyester jira |
| Spring | Zvakajairika:60Si2Mn,Inokosha:50CrVa |
| Kudzora vharafu hunde | 2Cr13/17-4PH/304/316/316L |
2.4Low tembiricha zvinhu zvakakodzera tembiricha rondedzero
| Casting | Forging | ||
| Zvishandiso | Kunyanya kushanda tembiricha | Zvishandiso | Kunyanya kushanda tembiricha |
| LCB | -46°C | LF2 | -46°C |
| LCC | -46°C | -46°C | |
| LC1 | -59°C | LF5 | -59°C |
| LC2 | -73°C | LF9 | -73°C |
| LC3 | -101°C | LF3 | -101°C |
| CF8 | -254°C | F304 | -254°C |
| CF8M | -254°C | F316 | -254°C |
| CF3 | -254°C | F304L | -254°C |
| CF3M | -254°C | F316L | -254°C |
2.5 Cryogenic control valve performance
| Pneumatic cryogenic regulating valve Flow character | Linear, percentage, kukurumidza kuvhura |
| Inobvumirwa nhanho | 50: 1 (CV <6.3 30: 1) |
| Yakatemerwa Cv kukosha | Muzana CV1.6~630,mutsara CV1.8~690 |
| Pneumatic cryogenic regulating valve Inobvumirwa kuvuza | Metal chisimbiso: IV giredhi(0.01% yakayerwa kugona） Chisimbiso chakapfava: VI giredhi(furo giredhi） Leakage standard: GB/T 4213 |
| Pneumatic cryogenic regulating valve Performance | |
| Intrinsic kukanganisa % | ±1.5 |
| Kudzorera musiyano, % | ≤1.5 |
| Nzvimbo yakafa,% | ≤0.6 |
| Musiyano kubva pakutanga kusvika kumagumo,% | ±2.5 |
| Yakatemerwa musiyano wekufamba, % | ≤2.5 |
2.6 Cryogenic control valve actuator parameter
| Kudzora Valve Type\ Method | Pneumatic diaphragm actuator |
| PZMA-4~PZMA-7 | |
| Multi-spring type | |
| Usage | Regulating mhando, ON-OFF mhando |
| Air supply pressure kana Power supply voltage | Air supply pressure (Spring range) 140(20～100）Kpa G 240 (40～200) Kpa G 280 (80～240) Kpa G |
| Connector | Mhepo pombi yekubatanidza: RC1/4 |
| Direct chiito | Kuwedzera kudzvinyirira, tsinde inodzika, vharafu inovhara. |
| Reaction | Kuwedzera kudzvinyirira, stem kukwira, vharafu yakavhurika. |
| Input chiratidzo | 40～20mA.DC(with positioner） |
| Lag | ≤1%FS(with positioner） |
| Linear mhando | 2% FS(with positioner） |
| Kupisa kwezvakatipoteredza | -10℃～+70℃ |
| Pneumatic cryogenic regulating valve Accessories | E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve, limited switch Zvisiri-zviyero zvishongedzo, zvinoda akakosha akagadziridzwa manotsi. |
2.7 Cryogenic control valve technical parameter
| Chigaro dhayamita(mm) | 10 | 12 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | |
| Rated Cv | muzana | 1.6 | 2.5 | 4.0 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 |
| Linear | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 690 | |
| Nom.saizi | Travel | Sarudzo yekuyerera maitiro Cv.(★standard ●recommanded ○customized) | |||||||||||||
| DN20 | 16mm | ● | ● | ● | ★ | ||||||||||
| DN25 | ● | ● | ● | ● | ★ | ||||||||||
| DN32 | 25 mm | ○ | ○ | ○ | ○ | ○ | ★ | ||||||||
| DN40 | ○ | ○ | ○ | ○ | ● | ★ | |||||||||
| DN50 | ○ | ○ | ○ | ● | ● | ★ | |||||||||
| DN65 | 40mm | ○ | ○ | ○ | ★ | ||||||||||
| DN80 | ○ | ○ | ○ | ● | ★ | ||||||||||
| DN100 | ○ | ○ | ○ | ● | ● | ★ | |||||||||
| DN125 | 60mm | ○ | ○ | ○ | ★ | ||||||||||
| DN150 | ○ | ○ | ● | ★ | |||||||||||
| DN200 | ○ | ○ | ● | ● | ★ | ||||||||||
| Pneumatic actuator Diaphragm nzvimbo, Ae(cm2) | PZMA-4 | PZMA-5 | PZMA-6 | PZMA-7 | |||||||||||
| 280 | 400 | 600 | 1000 | ||||||||||||
| Chiito | Spring range | Pneumatic cryogenic regulating valve Simbi yekuisa chisimbiso inobvumidzwa kudzvanywa musiyano (MPa) | |||||||||||||
| Mhepo yakavhurika | 20-100KPa | 4.46 | 3.09 | 1.98 | 1.16 | 0.7 | 0.44 | 0.28 | 0.18 | 0.17 | 0.11 | 0.07 | 0.07 | 0.05 | 0.03 |
| 40-200 KPa | 6.4 | 6.4 | 5.94 | 3.34 | 2.14 | 1.31 | 0.84 | 0.53 | 0.51 | 0.33 | 0.21 | 0.22 | 0.15 | 0.09 | |
| 80-240 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 4.99 | 3.05 | 1.95 | 1.25 | 1.18 | 0.78 | 0.5 | 0.51 | 0.36 | 0.21 | |
| Mhepo pedyo | 20-100KPa | 6.4 | 6.19 | 3.96 | 2.23 | 2.14 | 0.87 | 0.56 | 0.35 | 0.34 | 0.22 | 0.14 | 0.15 | 0.1 | 0.06 |
| 40-200 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 5.86 | 3.64 | 2.3 | 2.21 | 1.43 | 0.91 | 0.95 | 0.66 | 0.37 | |
| 80-240 KPa | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 5.04 | 3.18 | 3.06 | 1.98 | 1.26 | 1.32 | 0.92 | 0.52 | |
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