info@shxvalve.cominfo@shxvalve.com
Tel:+86-17717520739
Email：info@shxvalve.com
Address: NO.720, Suide Road, Jiading District,Shanghai, China.
Model：HMT
| Pneumatic mixing three way control valve Body type: | three way casting globe type |
| Spool type: | three way double seat spool |
| Nominal size: | DN20~300 NPS 3/4〞~ 12〞 |
| Nominal pressure: | PN16 ~ 100、 CLASS 150LB ~ 600LB |
| Connection: flange: | FF、RF、MF、RTJ |
| Welding: | SW、BW |
| Flange dimension: | According to to IEC 60534 |
| Pneumatic mixing three way control valve Bonnet type: |
Ⅰ:standard type（-20℃~230℃） Ⅱ:Radiator type: （-45℃~ high than 230℃ occasion） Ⅲ:Low temperature extended type（-196℃~ -45℃） Ⅳ:Bellow seal type Ⅴ:Warm insulation Jacket type |
| Packing: | V type PFTE packing, flex. graphite packing, etc. |
| Gasket: | Metal graphite packing |
| Control valve Actuator: | Pneumatic:multi-spring diaphragm actuator, piston type actuator. |
| Component name | Control Valve Material |
| Body/Bonnet | WCB/WCC/WC6/CF8/CF8M/CF3M |
| Valve spool/Seat | 304/316/316L(overlaying stellite alloy) |
| Packing | Normal:-196～150℃ is PTFE,RTFE,>230℃ is flexible graphite |
| Bellow | 304,316,316L |
| Gasket | Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket |
| Stem | 2Cr13/17-4PH/304/316/316L |
| Diaphragm Cover | Normal:Q235,Special:304 |
| Diaphragm | NBR with reinforced polyester fabric |
| Spring | Normal:60Si2Mn,Special:50CrVa |
| Pneumatic three way control valve Flow characteristic | Linear, percentage | |
| Allowable range | 30: 1 | |
| Rated Cv value | Percentage / linear CV8.5~1280 | |
| Pneumatic three way control valve Allowable leakage |
Metal seal: IV grade（0.01% rated capacity） Leakage standard: GB/T 4213 |
|
| Pneumatic three way control valve Performance | ||
| Intrinsic error(%) | ±1.5 | |
| Return difference(%) | ≤1.5 | |
| Dead zone(%) | ≤0.6 | |
| Difference from beginning to end point(%) | ±2.5 | |
| Rated travel difference(%) | ≤2.5 | |
| Special test | Material penetration flaw detection (PT), radiator test (RT), flow characteristic test, low temperature test. |
| Special treatment | Trim nitrogen treatment, seat hard alloy treatment. |
| Special rinse | Degreasing and dehydration treatment |
| Special condition | Special piping or connection, vacuum condition, S.S fastener, special coating. |
| Special dimension | Customized face to face length or dimension |
| Test and inspection | Third party test report |
| Pneumatic mixing three way control valve Type\ Method |
Pneumatic diaphragm actuator |
| ZH23～ZH56 | |
| Multi-spring type | |
| Usage | Regulating type, ON-OFF type |
| Air supply pressure or Power supply voltage | Air supply pressure (Spring range) 140（20～100）Kpa G 240 (40～200) Kpa G 280 (80～240) Kpa G |
| Connector | Air pipe connector: RC1/4 |
| Direct action | Pressure increase, stem descend, valve close. |
| Reaction | Pressure increase, stem ascend, valve open. |
| Input signal | 40～20mA.DC（with positioner） |
| Lag | ≤1%FS（with positioner） |
| Linear type | 2%FS（with positioner） |
| Environmental temperature | -10℃～+70℃ |
| Pneumatic mixing three way control valve Accessories |
E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve, limited switch Non-standard accessories, need special customized notes. |
| Seat diameter（mm） | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
| Rated flow coefficient, CV | 8.5 | 13 | 21 | 34 | 53 | 85 | 135 | 210 | 340 | 535 | 800 | 1280 | ||
| Nominal size | Travel | Option flow coefficient Cv（★standard ●recommended） | ||||||||||||
| DN25 | 16 mm | ★ | ||||||||||||
| DN32 | 25 mm | ★ | ||||||||||||
| DN40 | ● | ★ | ||||||||||||
| DN50 | ● | ● | ★ | |||||||||||
| DN65 | 40mm | ★ | ||||||||||||
| DN80 | ● | ★ | ||||||||||||
| DN100 | ● | ● | ★ | |||||||||||
| DN125 | 60mm | ★ | ||||||||||||
| DN150 | ● | ★ | ||||||||||||
| DN200 | ● | ● | ★ | |||||||||||
| DN250 | 100mm | ● | ● | ★ | ||||||||||
| DN300 | ● | ● | ★ | |||||||||||
| Pneumatic actuator Diaphragm area, Ae (cm2) |
ZHA/B-23 | ZHA/B-34 | ZHA/B-45 | ZHA/B-56 | ||||||||||
| 350 | 560 | 900 | 1600 | |||||||||||
| Action | Spring range | Pneumatic mixing three way control valve Metal sealing allowable pressure difference（MPa） |
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| Air open | 20-100KPa | 0.7 | 0.44 | 0.28 | 0.18 | 0.17 | 0.11 | 0.07 | 0.07 | 0.05 | 0.03 | 0.05 | 0.03 | |
| 40-200 KPa | 2.14 | 1.31 | 0.84 | 0.53 | 0.51 | 0.33 | 0.21 | 0.22 | 0.15 | 0.09 | 0.11 | 0.07 | ||
| 80-240 KPa | 4.99 | 3.05 | 1.95 | 1.25 | 1.18 | 0.78 | 0.5 | 0.51 | 0.36 | 0.21 | 0.21 | 0.15 | ||
| Air close | 20-100KPa | 2.14 | 0.87 | 0.56 | 0.35 | 0.34 | 0.22 | 0.14 | 0.15 | 0.1 | 0.06 | 0.05 | 0.03 | |
| 40-200 KPa | 6.4 | 5.86 | 3.64 | 2.3 | 2.21 | 1.43 | 0.91 | 0.95 | 0.66 | 0.37 | 0.11 | 0.07 | ||
| 80-240 KPa | 6.4 | 6.4 | 5.04 | 3.18 | 3.06 | 1.98 | 1.26 | 1.32 | 0.92 | 0.52 | 0.21 | 0.15 |
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