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| 49 Series |
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| 39 Series |
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| Yadeke Series |
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| Q Series |
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| Multifunctional gas control |
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Donghai Pneumatic Engineering
Address: Xinan Fneghua Zhejiang China
Tel: 0574-88852318
Fax: 0574-88850089
Mobile: 13506696910
Post:315502
Url: www.dh-nb.com |
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·Products > Q Series > Relief-pressure Valve
 This series air source treatment unit is jointly designed with Ministry of Machine-Building Industry. It includes filter, relief-pressure valve, oil sprayer, or their combined triplet. The product adopts large-area diaphragm structure with high pressure and high flow rate, reliable performance and long service life.
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| Technical Parameter |
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| TYPE |
QTY-6 |
QTY-8 |
QTY-10 |
QTY-15 |
QTY-20 |
QTY-25 |
QTY-40 |
| Applicable temperature(ºC) |
5~60 |
| Input the pressure nominally (Mpa) |
1.0 |
| max output pressure(Mpa) |
0.63 |
| Working pressure(Mpa) |
0.05 ~ 0.63 |
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| Figure Dimension |
| TYPE |
Adapter bore |
A |
D |
D1 |
D2 |
l0 |
E |
lmax |
| QSL-6 |
G1/8" |
80 |
64 |
ø80 |
ø58 |
16 |
80 |
173 |
| QSL-8 |
G1/4" |
| QSL-10 |
G3/8" |
| QSL-15 |
G1/2" |
80 |
64 |
ø80 |
ø58 |
21 |
80 |
181 |
| QSL-20 |
G3/4" |
108 |
105 |
ø120 |
ø58 |
30 |
100 |
250 |
| QSL-25 |
G1" |
| QSL-40 |
G1/2" |
136 |
104 |
ø120 |
ø58 |
40 |
100 |
280 |
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| air flow meter falls in pressure |
| TYPE |
The inlet pressure is 1MPa, while exporting the pressure and lowering to 0.05MPa, the largest flow is not smaller than the following regulations |
| air flux L/min |
| Inlet pressure MPa |
| 0.25 |
0.4 |
0.63 |
0.8 |
| QSL-6 |
100 |
120 |
160 |
190 |
| QSL-8 |
680 |
770 |
860 |
900 |
| QSL-10 |
720 |
860 |
1000 |
1100 |
| QSL-15 |
900 |
1100 |
1200 |
1300 |
| QSL-20 |
1650 |
1800 |
1900 |
2100 |
| QSL-25 |
1900 |
2250 |
2450 |
2650 |
| QSL-40 |
2150 |
2700 |
2920 |
3200 |
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