One-piece body construction made of ductile iron, cast iron or Stainless Steel.
The ISO 5211 mounting pad with square or key type stem shaft enables direct mount actuation for both manual (lever and gear), pneumatic and electric operations.
Teflon stem bushing ensures long service life even during prolonged periods of activity. Reduced operator torque for effortless manual operation and maximum shaft support.
High-strength two-piece stem eliminates taper pins or disc screws, which frequently fail prematurely due to abrasion, corrosion or fatigue.
All disc castings are spherically machined and polished to extend seat life and achieve bubble-tight shut off. The seat type is available in both encapsulated phenolic or aluminum-backed cartridge seat.
The cartridge design seat allows for easy change without special tools. Reduced disc option is provided for lower pressure applications, requiring lower torque and smaller actuators.
The shell is tested to 150% and the seat is tested to 110% of the maximum working pressure.
Product Fearues
1. Compact and light weight 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
Cartridge rubber 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
