OEM Factory for Wafer Silent Check Valve - ZHD Series (Electric or Pneumatic) Minimum Flow Control Valve – Convista
OEM Factory for Wafer Silent Check Valve - ZHD Series (Electric or Pneumatic) Minimum Flow Control Valve – Convista Detail:
ZHD multistage cage control valve used multilevel cage symmetric sleeve contol valve. It complete control medium velocitywithin valve, and greatly reduced noise made by high pressure gas or steam within valve, stabile multistage pressure reducing reducing effective prevent liquid cavitation, so it’s the stable control valve used in high-pressure medium performance, customers can also select multi-spring disphragm mechanism or pneumatic actuators, etc.
Body type: Direct forging type valve
Nominal diameter: NPS1″-8″ (DN20, 25, 32, 40, 50, 65, 80, 100, 200)
Nominal pressure: CLASS 150, 300, 600, 900, 1500Lb, PN1.6, 2.5, 4.0, 6.4, 10.0, 16, 25MPa
End connection type: FF, RF, RTJ, etc, welding: SW, BW
Flange dimension: According to IEC534
Bonnet type: Standard type, lengthened (heat dissipation, low temperature, bellows sealing).
Packing: V type PTFE, flexible graphite gaskets
Sealing gasket: Metal with graphite gaskets
Actuator: Pneumatic, multi-spring actuator.
Electric: 3810L series, PSL series.
Valve disc type: Multistage cage sleeve type.
Flow characteristices: Equal percentage, linear.
Disc material: standard material composition and applicable temperature, pressure range, please refer to appendix.
Material and internal structure

Body material: carbon steel
| 1 | Seat | A105 | LF2 | F22 |
| 2 | Nut | 2H | 35 | 25Cr2Mo1VA |
| 3 | Stud | B7 | 40MnB | 25Cr2Mo1VA |
| 4 | Gasket | 316+graphite/PTFE | ||
| 5 | Body | A105 | LF2 | F22 |
| 6 | Seat | 304 | 304 | 304 |
| 7 | Steam | 304 | 304 | 304 |
| 8 | Stud | B7 | 40MnB | 25Cr2Mo1VA |
| 9 | Nut | 2H | 35 | 25Cr2Mo1VA |
| 10 | Gasket | 316+graphite/PTFE | ||
| 11 | Packing gasket | 304 | 304 | 304 |
| 12 | Stuffing | PTFE/Flexible graphite | ||
| 13 | Bonnet | A105 | LF2 | F22 |
| 14 | Pressing sleeve | 304 | 304 | 304 |
| 15 | Gland | A105 | LF2 | F22 |
| 16 | Stud | 2H | 40MnB | 25Cr2Mo1VA |
| 17 | Nut | B7 | 35 | 25Cr2Mo1VA |
Body material: stainless steel
| 1 | Seat | CF8 | CF8M | CF3M |
| 2 | Nut | 304 | 316 | 316L |
| 3 | Stud | 304 | 316 | 316L |
| 4 | Gasket | 316+graphite/PTFE | ||
| 5 | Body | CF8 | CF8M | CF3M |
| 6 | Seat | 304 | 316 | 316L |
| 7 | Steam | 304 | 316 | 316L |
| 8 | Stud | 304 | 316 | 316L |
| 9 | Nut | 304 | 316 | 316L |
| 10 | Gasket | 316+graphite/PTFE | ||
| 11 | Packing gasket | 304 | 316 | 316L |
| 12 | Stuffing | PTFE/Flexible graphite | ||
| 13 | Bonnet | CF8 | CF8M | CF3M |
| 14 | Pressing sleeve | 304 | 316 | 304 |
| 15 | Gland | CF8 | CF8M | CF3M |
| 16 | Stud | 304 | 316 | 316L |
| 17 | Nut | 304 | 316 | 316L |
Product detail pictures:

Related Product Guide:
Our staff through skilled training. Skilled skilled knowledge, potent sense of company, to satisfy the provider requirements of consumers for OEM Factory for Wafer Silent Check Valve - ZHD Series (Electric or Pneumatic) Minimum Flow Control Valve – Convista, The product will supply to all over the world, such as: France, Mecca, Ecuador, Our company's main items are widely used all over the world; 80% of our products and solutions exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.
The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!



