HTSW Bellows control valve
HTSW bellows sealed single-seat control valve belongs to CV3000 series control valve products.
The spool adopts an up-directed single-seat plunger type structure and the upper valve cover adopts a bellows sealed structure to prevent the media in the pipeline from leaking out from the stem and packing seal. Bellows are made of high quality stainless steel, corrosion-proof and long service life. The packing will be aging and wear phenomenon with the use of time, and the bellows formed a double seal, reliability greatly improved. The valve body flow channel is S-shaped, small flow resistance, large flow. Especially suitable for strong corrosive, toxic, radioactive media. Assembled with ZHA multi-spring film actuator, compact structure, large output force.
Product Features
1,Single seat plunger type spool, small leakage, small allowable pressure difference.
2,The control mechanism can be equipped with a straight stroke electric actuator to form a single seat electric bellows seal control valve.
3,Bellows and packing double seal, effectively prevent media leakage.
Main technical parameters
| Nominal diameters | 40 | 50 | 65 | 80 | 100 | 150 | ||||||||||||
| Valve seat diameters | 25 | 32 | 40 | 32 | 40 | 50 | 40 | 50 | 65 | 50 | 65 | 80 | 65 | 80 | 100 | 100 | 125 | 150 |
| High precision valve core | 10 | 14 | 24 | 17 | 24 | 44 | 24 | 44 | 68 | 44 | 68 | 69 | 68 | 99 | 175 | 175 | 275 | 360 |
| High capacity valve spool |
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| 30 |
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| 50 |
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| 85 |
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| 125 |
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| 200 |
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| 420 |
| Quick opening valve core |
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| 35 |
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| 55 |
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| 95 |
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| 135 |
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| 220 |
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| 460 |
| Nominal pressure Mpa | 1.6， 2.5， 4.0， 6.4 | |||||||||||||||||
| Route mm | 25 | 38 | 50 | |||||||||||||||
| Route,quick opening mm | 10 | 13 | 19 | 25 | 30 | |||||||||||||
| Discharge characteristic | Straight , equal percentage
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| Working temperature | Normal temperature（-40～230℃），Medium temperature（-40～450℃），High temperature（-40～550℃），Low temperature（-40～-196℃） | |||||||||||||||||
| Flange standards | JB79，HG20592，GB，ANSI，JIS，DIN | |||||||||||||||||
| Adjustable | 50:1 | |||||||||||||||||
| Disclosure class | Metal hard seal class Ⅳ, PTFE soft seal class Ⅵ
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Main technical parameters
| Model | HA1D（R） | HA2D（R） | HA3D（R） | HA4D（R） |
| Active area cm2 | 160 | 310 | 550 | 950 |
| Route mm | 14.3,25 | 14.3,25,38 | 14.3,25,38,40,50 | 14.3,25,38,40,50,60,75 |
| Spring range Kpa | 20-100, 40-200, 80-240, 20-60, 60-100 | |||
| Bleed pressure Kpa | 0.1-0.4 | |||
| Air supply connection | RC1/4 | |||
Main parts material
| Name | Materials |
| Valve body,deck | WCB，CF8（304），CF8M（316） |
| Valve spool, valve rod, valve seat | 304,316,304 surfacing alloy |
| Padding | PTFE，Flexible graphite |
| Sealing gasket | Graphite winding pad, toothed pad
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| Membrane cover | A3 |
| Mebrane | Epdm rubber with nylon fabric
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| Spring | 60Si2Mn |
| Push rod | 2Cr13 |
Performance index
| Project | Index value | Project | Index value | ||||
| Basic error % | No positioner | ±5.0 | origin-destination deviation % | Off | No positioner | Origin | ±5.0 |
| With positioner | ±1.0 | Destination | ±2.5 | ||||
| Gear backlash % | No positioner | ≤3.0 | With positioner | Origin | ±1.0 | ||
| With positioner | ≤1.0 | Destination | ±1.0 | ||||
| Dead zone | No positioner | ≤3.0 | On | No positioner | Origin | ±2.5 | |
| With positioner | ≤0.4 | Destination | ±5.0 | ||||
| Deviation of rated stroke % | ±2.5 | With positioner | Origin | ±1.0 | |||
| Destination | ±1.0 | ||||||
| Allowable leakage rate L/H | 1×10-3 Rated valve capacity | ||||||
Allow differential pressure Mpa
| Switching mode | Executing agency | Spring range Kpa | Bleed pressure Kpa | Positioner | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
| Off | HA2D | 20-100 | 140 | Yesor no | 0.31 | 0.19 | 0.13 | 0.08 | 0.05 | 0.03 | 0.02 |
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| 20-100 | 160 | Yes | 1.58 | 0.96 | 0.68 | 0.39 | 0.25 | 0.17 | 0.10 |
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| 80-240 | 400 | Yes | 2.0 | 2.0 | 2.0 | 1.08 | 0.74 | 0.52 | 0.29 |
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| 4.7 | 2.8 | |||||||||||||
| HA3D | 20-100 | 140 | Yes or no | 0.56 | 0.34 | 0.24 | 0.14 | 0.08 | 0.06 | 0.03 | 0.02 | 0.01 |
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| 20-100 | 160 | Yes | 2.0 | 1.71 | 1.21 | 0.07 | 0.44 | 0.31 | 0.17 | 0.11 | 0.07 |
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| 2.8 |
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| 80-240 | 400 | Yes | 2.0 | 2.0 | 2.0 | 2.0 | 1.32 | 0.98 | 0.52 | 0.33 | 0.20 |
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| 5.0 | 5.0 | 3.6 | 2.1 |
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| HA4D | 20-100 | 140 | Yes or no |
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| 0.41 | 0.24 | 0.15 | 1.11 | 0.06 | 0.03 | 0.02 | 0.01 | |
| 20-100 | 160 | Yes |
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| 2.0 | 1.21 | 0.76 | 0.53 | 0.3 | 0.19 | 0.12 | 0.07 | ||
| 80-240 | 400 | Yes |
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| 2.0 | 2.0 | 2.0 | 1.61 | 0.91 | 0.58 | 0.35 | 0.22 | ||
| 5.0 | 3.6 | 2.25 | ||||||||||||
| On | HA2R | 20-100 | 140 | Yes or no | 0.31 | .019 | 0.13 | 0.08 | 0.05 | 0.03 | 0.02 |
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| 80-240 | 280 | Yes | 2.0 | 1.35 | 0.7 | 0.55 | 0.34 | 0.24 | 0.14 |
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| 2.2 | ||||||||||||||
| HA3R | 20-100 | 140 | Yes or no | 0.56 | 0.34 | 0.24 | 0.14 | 0.08 | 0.06 | 0.03 | 0.02 | 0.01 |
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| 80-240 | 280 | Yes | 2.0 | 2.0 | 1.7 | 0.98 | 0.61 | 0.43 | 0.24 | 0.15 | 0.09 |
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| 3.9 | 2.3 | |||||||||||||
| HA4R | 20-100 | 140 | Yes or no |
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| 0.29 | 0.17 | 0.10 | 0.07 | 0.04 | 0.02 | 0.01 | 0.01 | |
| 80-240 | 400 | Yes |
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| 2.0 | 1.57 | 1.01 | 0.75 | 0.42 | 0.27 | 0.160 | 0.10 |
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