|
GYL-20000,40000 series control allowable pressure drops |
|
1.Allowable pressure drops is based on all control valve's body and
Actuator(standard specification). |
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2.The packing of body is standard for Reinforced Teflon,the
allowable pressure will be changed in case select other packing, |
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for example,Grafoil. |
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3.The allowable pressure drops of lists belows are only suitable to
GYL-20100/20200 series and GYL-40500/40600 series control valve. |
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4.The allowable pressure drops of GYL-20300 series and
GYL-40700/40800 series control valve haven't showed in lists belows, |
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please supply parameter for us to make certain to the plug and the
combinition. |
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5.The allowable pressure drops of GYL-20400 series control
valve,could be as high as nominal pressure of control valve. |
|
6.If the case of the allowable pressure drops cann't be satisfied
enough to service,please contact with our sales person. |
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7.The allowable pressure drops is based on open status of control
valve. |
|
List 7.(unit:Mpa)multi-spring diaphragm type actuator · positive
action(air to close type) |
|
Actuator type |
Air pressure (unbalanced) Mpa |
Spring range Mpa |
Trim type |
Plug size inch |
|
GYL-20000 series |
GYL-40000 series |
|
3/4 |
1 |
11/4 |
11/2 |
2 |
21/2 |
3 |
4 |
5 |
6 |
8 |
1 |
11/2 |
2 |
21/2 |
3 |
4 |
5 |
6 |
8 |
|
L4620 |
140 |
20~100 |
Metal seat |
1.17 |
0.75 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
2.21 |
— |
— |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
1.54 |
— |
— |
— |
— |
— |
— |
— |
— |
|
Soft seat |
0.94 |
0.6 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
1.1 |
— |
— |
— |
— |
— |
— |
— |
— |
|
240 |
40~200 |
Metal seat |
2.73 |
1.75 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
5.16 |
— |
— |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
3.85 |
— |
— |
— |
— |
— |
— |
— |
— |
|
Soft seat |
2.27 |
1.45 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
2.06 |
— |
— |
— |
— |
— |
— |
— |
— |
|
300 |
80~240 |
Metal seat |
5.85 |
3.75 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
9.89 |
— |
— |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
4.94 |
— |
— |
— |
— |
— |
— |
— |
— |
|
Soft seat |
4.92 |
3.15 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
2.21 |
— |
— |
— |
— |
— |
— |
— |
— |
|
L4630 |
140 |
20~100 |
Metal seat |
1.64 |
1.05 |
0.63 |
0.4 |
0.26 |
— |
— |
— |
— |
— |
— |
3.09 |
1.81 |
1.49 |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
2.16 |
1.17 |
0.96 |
— |
— |
— |
— |
— |
— |
|
Soft seat |
1.31 |
0.84 |
0.51 |
0.32 |
0.2 |
— |
— |
— |
— |
— |
— |
1.54 |
0.88 |
0.68 |
— |
— |
— |
— |
— |
— |
|
240 |
40~200 |
Metal seat |
3.82 |
2.45 |
1.49 |
0.96 |
0.61 |
— |
— |
— |
— |
— |
— |
7.22 |
4.24 |
3.48 |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
4.69 |
2.96 |
2.15 |
— |
— |
— |
— |
— |
— |
|
Soft seat |
3.17 |
2.03 |
1.23 |
0.79 |
0.51 |
— |
— |
— |
— |
— |
— |
2.16 |
1.69 |
1.21 |
— |
— |
— |
— |
— |
— |
|
300 |
80~240 |
Metal seat |
8.19 |
5.24 |
3.19 |
2.05 |
1.31 |
— |
— |
— |
— |
— |
— |
9.89 |
9.08 |
7.46 |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
5.06 |
4.54 |
3.73 |
— |
— |
— |
— |
— |
— |
|
Soft seat |
6.88 |
4.41 |
2.68 |
1.72 |
1.1 |
— |
— |
— |
— |
— |
— |
2.34 |
1.81 |
1.49 |
— |
— |
— |
— |
— |
— |
|
L4640 |
140 |
20~100 |
Metal seat |
— |
— |
1.02 |
0.66 |
0.42 |
0.24 |
0.16 |
0.1 |
— |
— |
— |
— |
2.9 |
2.38 |
1.85 |
1.51 |
1.23 |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
0.82 |
1.42 |
1.07 |
0.89 |
0.73 |
— |
— |
— |
|
Soft seat |
— |
— |
0.81 |
0.52 |
0.3 |
0.2 |
0.13 |
0.08 |
— |
— |
— |
— |
1.16 |
0.95 |
0.7 |
0.55 |
0.39 |
— |
— |
— |
|
240 |
40~200 |
Metal seat |
— |
— |
2.38 |
1.53 |
0.98 |
0.58 |
0.38 |
0.24 |
— |
— |
— |
— |
6.78 |
5.57 |
4.33 |
3.54 |
2.88 |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
4.06 |
3.34 |
2.59 |
2.01 |
1.72 |
— |
— |
— |
|
Soft seat |
— |
— |
1.97 |
1.26 |
0.81 |
0.48 |
0.31 |
0.2 |
— |
— |
— |
— |
1.83 |
1.67 |
1.58 |
1.23 |
0.86 |
— |
— |
— |
|
300 |
80~240 |
Metal seat |
— |
— |
5.12 |
3.28 |
2.1 |
1.24 |
0.82 |
0.52 |
— |
— |
— |
— |
9.89 |
9.89 |
9.28 |
7.59 |
6.19 |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
5.63 |
4.64 |
3.71 |
2.65 |
2.35 |
— |
— |
— |
|
Soft seat |
— |
— |
4.3 |
2.75 |
1.76 |
1.01 |
0.69 |
0.44 |
— |
— |
— |
— |
1.97 |
1.78 |
1.67 |
1.51 |
1.23 |
— |
— |
— |
|
L4650 |
140 |
20~100 |
Metal seat |
— |
— |
— |
— |
— |
0.4 |
0.26 |
0.17 |
0.11 |
0.07 |
0.02 |
— |
— |
— |
2.98 |
2.44 |
1.99 |
1.62 |
1.34 |
0.3 |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
1.49 |
0.97 |
1.19 |
0.97 |
0.8 |
0.2 |
|
Soft seat |
— |
— |
— |
— |
— |
0.32 |
0.21 |
0.13 |
0.08 |
0.05 |
0.01 |
— |
— |
— |
1.19 |
0.73 |
0.69 |
0.64 |
0.53 |
0 |
|
240 |
40~200 |
Metal seat |
— |
— |
— |
— |
— |
0.93 |
0.61 |
0.39 |
0.25 |
0.17 |
0.07 |
— |
— |
— |
6.96 |
5.69 |
4.64 |
3.79 |
3.13 |
1.6 |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
3.48 |
3.01 |
2.32 |
1.89 |
1.56 |
1 |
|
Soft seat |
— |
— |
— |
— |
— |
0.77 |
0.51 |
0.32 |
0.2 |
0.14 |
0.05 |
— |
— |
— |
2.08 |
1.47 |
1.29 |
0.75 |
0.93 |
0.6 |
|
300 |
80~240 |
Metal seat |
— |
— |
— |
— |
— |
1.98 |
1.32 |
0.84 |
0.54 |
0.37 |
0.16 |
— |
— |
— |
9.89 |
9.89 |
9.89 |
8.14 |
6.71 |
4.3 |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
4.94 |
4.25 |
3.74 |
3.25 |
2.68 |
1.5 |
|
Soft seat |
— |
— |
— |
— |
— |
1.68 |
1.1 |
0.7 |
0.45 |
0.31 |
0.12 |
— |
— |
— |
2.01 |
1.97 |
1.71 |
1.62 |
1.42 |
1.3 |
|
List 8.(unit:Mpa)multi-spring diaphragm type actuator · negative
action(air to open type) |
|
Actuator type |
Air pressure (unbalanced) Mpa |
Spring range Mpa |
Trim type |
Plug size inch |
|
GYL-20000 series |
GYL-40000 series |
|
3/4 |
1 |
11/4 |
11/2 |
2 |
21/2 |
3 |
4 |
5 |
6 |
8 |
1 |
11/2 |
2 |
21/2 |
3 |
4 |
5 |
6 |
8 |
|
L4520 |
140 |
20~100 |
Metal seat |
1.17 |
0.75 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
2.21 |
— |
— |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
1.54 |
— |
— |
— |
— |
— |
— |
— |
— |
|
Soft seat |
0.94 |
0.6 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
1.1 |
— |
— |
— |
— |
— |
— |
— |
— |
|
240 |
40~200 |
Metal seat |
2.73 |
1.75 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
5.16 |
— |
— |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
3.85 |
— |
— |
— |
— |
— |
— |
— |
— |
|
Soft seat |
2.27 |
1.45 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
2.06 |
— |
— |
— |
— |
— |
— |
— |
— |
|
300 |
80~240 |
Metal seat |
5.85 |
3.75 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
9.89 |
— |
— |
— |
— |
— |
— |
— |
— |
|
With balance seat ring |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
4.94 |
— |
— |
— |
— |
— |
— |
— |
— |
|
Soft seat |
4.92 |
3.15 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
2.21 |
— |
— |
— |
— |
— |
— |
— |
— |
|
L4530 |
140 |
20~100 |
Metal seat |
1.64 |
1.05 |
0.63 |
0.4 |
0.26 |
— |
— |
— |
— |
— |
— |
3.09 |
1.81 |
|