Soft Seat wafer-style butterfly valves are designed for use in HVAC systems, irrigation, OEM applications, as well as commercial and institutional settings where reliable shutoff is essential for regulating the flow of liquids, gases, and slurries. These valves feature a robust ductile iron body construction paired with a stainless steel shaft and include a mounting pad compatible with 10-position levers, gear box, or pneumatic actuators ,electric autuator . They are available with discs made from ductile iron, aluminum bronze, or stainless steel and seats constructed from EPDM, Buna-N, or Viton /FKM.
Product Fearues
1. Compact and lightweight design facilitates easy installation and maintenance.
2. Can be mounted in any required location; features a simple, compact construction with quick 90-degree on-off operation.
3. Operating torque is minimized for enhanced energy efficiency.
4. Provides bubble-tight sealing with no leakage during pressure testing.
5. A wide range of materials available, suitable for various media applications.
6. Long service life, proven to withstand tens of thousands of opening and closing cycles without failure.
7. Flow curve approaches a straight line, demonstrating excellent regulation performance."
Working/Testing Pressure
| Size |
DN |
40mm-300mm |
350mm-1200mm |
| Inch |
1-1/2''-12'' |
14''-24'' |
| Working |
16bar |
10bar |
| Testing |
Shell |
24bar |
15bar |
| Seal |
17.6bar |
11bar |
Working Temperature
| Seat Material |
EPDM |
NBR |
FKM |
PTFE |
| Temperature |
-10℃ to 120℃ |
-10℃ to 80℃ |
-15℃ to 200℃ |
-25℃ to 180℃ |
| Part |
Material |
| Body |
Cast Iron Ductile Iron WCB CF8 CF8M CF3M Duplex Steel Al-Bronze |
| Disc |
Ductile Iron CF8 CF8M CF3M Duplex Steel Al-Bronze Harlar Coated |
| Shaft |
SS410 SS416 SS420 SS431 SS316 17-4PH |
| Seat |
EPDM NBR PTFE FKM Silicone |
| Bushing |
FRP PTFE Bronze |
| Lever |
Malleable Iron Carbon Steel Aluminum SS316 |
| Gear Box |
Ductile Iron Aluminum SS316 |
Corrosion Protection
Epoxy Resin Powder Spray,The minimum thickness is not less than 300 microns
Disc Options
Through shaft with Pin
Pinless disc
Slim disc concentric design(DN50-DN350)
Seat Options
Catridge rubber seat
Tongue and Groove/Replaceable Seat
NOTE:
*The shaf end can be doubl D and key connecton. From DN700 and above, the shaf end is double key type.
*The flange connecton of the above table can be DIN2501 PN16, ASME B16.47-A 125/150LB, BS4504 PN10/PN16, JIS 10K,Table D ,Table E
* DN400’s valve face to face can be 85.7mm & 102mm. DN450’s valve face to face can be 104mm & 114mm
