Product Introduction:
On-off electric wafer butterfly valve model D971X adopts concentric resilient seated design.
The multi-drilled valve body is compatible with GB PN10/PN16, ANSI Class150, JIS 10K and EN PN16 flanges.
One valve fits different international pipeline standards, which makes it the preferred choice for overseas projects and export equipment.
Equipped with on-off electric actuator, the valve realizes fully open / fully close two-position control by 90° rotation of disc, used for pipeline shut-off.
Wafer mounting structure is compact and lightweight. Resilient seat provides bubble-tight bi-directional sealing.
Advantage:
Universal multi-standard body reduces inventory varieties. Electric two-position automatic control supports remote operation, ideal for unattended pipeline systems.

Main Technical Data:
Size: DN50~DN1200
Pressure: PN10, PN16 / Class150
Operation: Two-position ON/OFF control (without modulating function)
Actuator Voltage: AC220V, AC380V, DC24V optional
Protection Class: IP65
Medium: Water, wastewater, air, gas, oil and mild corrosive liquid
Application: Water treatment, fire protection, HVAC, environmental equipment, marine pipeline, overseas engineering projects.
Materials:
Body : Ductile Iron/WCB
Disc: CF8
Seal : NBR
Stem : Stainless Steel
No. | Part Name | Material |
1 | Body | Cast Iron/Carbon Steel/Stainless Steel/Al-Bronze |
2 | Disc | Cast Iron/Stainless Steel/Al-Bronze |
3 | Seat | EPDM/PEFE/Buna/NBR/Hypalon/Viton |
4 | Stem | WCB/SS416/SS410 |
5 | Bushing | PTFE/Lubricating |
6 | O ring | EPDM/PEFE/Buna/NBR/Hypalon |
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Characteristic:
Applicable Medium: Water, Oil, Gas
Applicable Temperature:-20~120℃
Nominal Pressure (Mpa) | 1.0 | 1.6 |
Nominal Diameter(mm) | 40-600 | 40-600 |
Test Pressure (Mpa) | Shell | 1.5 | 2.4 |
Seal | 1.1 | 1.76 |
Applicable Temperature | -20-120℃ |
Applicable Medium | Water, Sewage, Sea water, Air, Food, Medicine, Oils, Acids, etc. |
Operating Type | Manual, Worm Gear, Pneumatic, Electric, etc. |
Electric Actuator Parameters:
ON/OFF Electric Actuators |
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Model | 3 | 5 | 10 | 15 | 30 | 60 | 100 | 200 |
Torque NM | 30Nm | 50Nm | 100Nm | 150Nm | 300Nm | 600Nm | 1000Nm | 2000Nm |
Actuator speed | 25S | 25S/50S | 10S/15S/30S/60S | 30S/60S | 30S | 45S |
Working current | 0.25A | 0.25A | 0.48A | 0.68A | 0.8A | 1.2A | 2A | 2A |
Motor power | 6W/F | 15W/F | 25W/F | 30W/F | 40W/F | 90W/F | 100W/F | 120W/F |
Voltage | AC220V,AC24V,AC110V,DC24V,DC12V,AC380V 1Ph/3Ph |
Modulating Electric Actuators |
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Model | 03E | 05E | 10E | 15E | 30E | 60E | 100E | 200E |
Torque NM | 30Nm | 50Nm | 100Nm | 150Nm | 300Nm | 600Nm | 1000Nm | 2000Nm |
Actuator speed | 25S | 25S/50S | 10S/15S/30S/60S | 30S/60S | 30S | 45S |
Working current | 0.25A | 0.25A | 0.48A | 0.68A | 0.8A | 1.2A | 2A | 2A |
Motor power | 6W/F | 15W/F | 25W/F | 30W/F | 40W/F | 90W/F | 100W/F | 120W/F |
Voltage | AC220V,AC24V,AC110V,DC24V,DC12V,AC380V 1Ph/3Ph |
Input signal | 4-20mADC,1-5VDC,0-10VDC |
Output signal | 4-20mADC,0-10VDC |
All valves are equipped with professional export protective packaging.
With protective caps on the sealing surfaces, rust-proof treatment, and shock-absorbing material filling to ensure intact transport; the loading is secure and safe.
We can also customize packaging according to customer requirements.
Regarding transportation methods, we can provide appropriate transportation options based on the cargo requirements and the customer's timeliness requirements.
Common transportation methods include: sea freight, air freight, land freight, and express delivery.
