Ningbo Sanmin Import And Export Co.,Ltd.
| Payment Terms | L/C,T/T |
| Supply Ability | 10000PCS |
| Delivery Time | 5-30days |
| Packaging Details | Box |
| Nominal Pressure | 1.0 ( MPa ) |
| Type | Outlet Valve |
| Temperature | ≤200℃ |
| Max test press | 1.5 ( MPa ) |
| DN | 40 , 50 , 65 , 80 , 100 , 125 , 150 , 175 , 200 , 225 , 250 , 300 |
| Valve body | Cast iron |
| Brand Name | NBSANMINSE |
| Model Number | SMWZ644 ( 1 ) -10 ( 2 ) -DNA -C |
| Certification | ISO9001 |
| Place of Origin | CHINA |
View Detail Information
Explore similar products
Double Diaphragm Pulse Valve Solenoid Pulse Valve QG-Z-50S / 62S / 76S Series
SANMIN QA-40S 50S 60S AC 220 Volt Pneumatic Pulse Valve 0.3-0.6Mpa ASCO type
QA-Y- 76S Pneumatic Pulse Valve Big Size Submerged type Dust Proof Valve Asco
SANMIN Pneumatic Pulse Valve Dustproof Valve Clean Air 1 - 1 / 4 " ASCO Type
Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 10000PCS |
| Delivery Time | 5-30days | Packaging Details | Box |
| Nominal Pressure | 1.0 ( MPa ) | Type | Outlet Valve |
| Temperature | ≤200℃ | Max test press | 1.5 ( MPa ) |
| DN | 40 , 50 , 65 , 80 , 100 , 125 , 150 , 175 , 200 , 225 , 250 , 300 | Valve body | Cast iron |
| Brand Name | NBSANMINSE | Model Number | SMWZ644 ( 1 ) -10 ( 2 ) -DNA -C |
| Certification | ISO9001 | Place of Origin | CHINA |
| High Light | pulse air valve ，pulse jet solenoid valve | ||
Outlet Double Disc Valve , Double Disc Gate Valve ISO9001 Certification
Main Perfomance
Model WZ644-10Q double-disc valve uses a double -disc sealing and sealing surfaces are made from wear-resistant alloy or ceramic. The seal is 100% airtight and the valve achieves a long service life , particularly in applications . Consequently , overall system reliability is increased dramatically .
Operating Performance
When air is introduced into the upper cylinder port , the piston rod pushes the double-disc down and the valve is closed . When air is introduced into the lower cylinder port , the piston rod pushes the double-disc up and the valve is opened . Compression spring being placed between the discs and seal ring , forces the discs the discs against the seal ring , and also allow for discs vertical movement , which helps to compensate the thermal expansion and contraction of the parts and ensure an airtight seal under all conditions . When actuating the valve , the double-disc rotates to lap and polish the sealing surfaces . When product flows through the valve , any material entering the inner chamber is removed by vortex flow action . Hence , the valve is self-cleaning . Additional air purging can be provided to ensure clean-in-place performance . All these characteristics guarantee a long service lofe for the valve and increase the reliability of your system .
Applications
Any dust , powder , and granular products in coal-fired power plants , smelters , iron and steel plants , pharmaceutical and chemical industries .
Technical Parameters
Maximum-Operating Pressure : 1.0MPa
Maximum Test Pressure : 1.5MPa
Operating Temperature : ＜200℃
Leakage Test Pressure : 1.1MPa
Installation and Application
1. Prior to installation , make sure the pneumatic actuator is free of any defects like breakage and concave .
2. Make sure the joint flange , structural length , maximum operating pressure and nominal diameter are accorded with requirements .
3. During installation , not allowed to readjust studs and nuts that have been fastened originally . Align the center of two pipelines and valve diameter to be coaxial . Keep the flange surface flat . Uniformly apply force to tighten the bolt .
4. After installation , introduce air from the upper and lower cylinder ports to see whether the valve can be normally opened or closed .
5. Cheek the control switch ( if existing ) to see whether it is reliably fastened , whether its parameter is accorded with access power source , and whether it can correctly work under full opening and full closing conditions .
Troubleshooting Method
| Troubles | Cause | Troubleshooting Method |
| Leakage in sealing surface | Dirt between disc and sealing surface | Remove the dirt |
| Damage to seal ring pairs | Repair or replace | |
| Leakage in flange joint | The bolt is unevenly screwed | Evenly screw the bolt |
| Damage to the flange surface | Repair the flange surface | |
| Damage to the spacer | Replace the spacer | |
| Valve fails to be correctly opened or closed | Dust deposit | Remove dust regularly |
| Insufficient air pressure , severe leakage | Repair air supply pipeline | |
| Pneumatic components have been aged and lost efficlency | Replace the damaged components | |
| Leakage of stuffing box | The stuffing has been aged and severely worn | Replace the stuffing |
Installation dimension , outline drawing
| Model (A series) | DN | L | d | K | D | H | n-M | 2-A |
| WZ644-10Q-40 | 40 | 120 | 84 | 110 | 150 | 443 | 4-M16 | 2-G1/4 |
| WZ644-10Q-50 | 50 | 120 | 99 | 125 | 165 | 463 | 4-M16 | 2-G1/4 |
| WZ644-10Q-65 | 65 | 120 | 118 | 145 | 180 | 528 | 4-M16 | 2-G1/4 |
| WZ644-10Q-80 | 80 | 120 | 132 | 160 | 195 | 558 | 8-M16 | 2-G1/4 |
| WZ644-10Q-100 | 100 | 120 | 156 | 180 | 215 | 601 | 8-M16 | 2-G1/4 |
| WZ644-10Q-125 | 125 | 160 | 184 | 210 | 250 | 730 | 8-M16 | 2-G3/8 |
| WZ644-10Q-150 | 150 | 160 | 211 | 240 | 285 | 798 | 8-M16 | 2-G3/8 |
| WZ644-10Q-175 | 175 | 160 | 241 | 270 | 315 | 894 | 8-M16 | 2-G3/8 |
| WZ644-10Q-200 | 200 | 160 | 266 | 295 | 340 | 958 | 8-M16 | 2-G1/2 |
| WZ644-10Q-225 | 225 | 160 | 294 | 325 | 370 | 1028 | 12-M20 | 2-G1/2 |
Main Parts and Materials
| Item | Name | Material | Item | Name | Material |
| 1 | Valve body | Ductile iron | 5 | Connecting T-piece | Cast steel |
| 2 | Side valve body | Ductile iron | 6 | End cap | 45#Steel |
| 3 | Sealing ring | Carbon steel + special alloy | 7 | Linking neck | Hodular cast iron |
| 4 | Dise | Carbon steel + special alloy | 8 | Pneumatic actuator aluminum | Aluminum cylinder |
Q: Could you offer the free samples ?
A: Yeah, but it depends products, Pls contact us ina@pneuhydr.com or whatsapp 0086 15168536055
Q: What ' s your business scope ?
A: Our business scope is service of exporter automation parts with full container, and sell air cylinder , air source treatment , solenoid valve , air valve, motorize valve , Brass valve, hydraulic valve, hydraulic cylinder, air and oil fitting, pressure gauge etc .
Q: What types of products you can make ?
A: We can make many kinds of stainless steel, brass ,aluminum materials processing .like high pressure Valve / solenoid valve / electric valve / water valve/pneumatic valve/air cylinder/hydraulic valve/hydraulic accumulator products and so on .
Q: Can the product be made with our logo and brand ?
A: Yes , of course , we can make . we are OEM supplier for years and professional to make . But you need give us the authorization if it is possible .
Q:Can you provide original famous pneumatic and hydraulic,instruments brand goods ?
A: Yes,We can supply like Festo,Smc,Ckd,Burket,Hydac,Rexroth,Siemens,Rosemount,Marsh ,Endress+Hauser etc.
Q: Is there a warranty available?
A: Yes, normally products is one year quality guarantee.
Q: Is the connector in British or Metric system? What is the difference between PT, NPT, and G threads?
A: The G thread is cylindrical and does not seal itself, requiring additional gaskets to prevent leakage. PT and NPT are conical, and the internal and external threads become tighter and tighter when tightened. Sealing is achieved through the deformation of the threads, and sealant or tape is usually used in conjunction to enhance the sealing effect
G-thread is a cylindrical straight pipe used for non sealed connections; PT thread is a conical tube that relies on the deformation and sealing of the thread itself; NPT is also a conical tube with a tooth profile angle of 60 degrees, mainly used in North America
Q: How to convert pressure units: MPa, bar, psi, kg/cm ²?
A: 1MPa=10bar≈145psi≈10kg
Q:What usually causes the burnout of solenoid valve coils?
A:Incorrect voltage and hz, frequent switching, pilot head entering liquid,valve core and spring problem,environment hot,heavy vibration etc.
Q: What should be noted for pneumatic components in high temperature or extremely cold environments?
| Focus Point | High Temperature Environment Countermeasures | Extreme Cold Environment Countermeasures |
| Seals | Fluororubber, PTFE | Low-temperature nitrile, silicone rubber, polyurethane |
| Lubrication | High-temperature synthetic grease (low volatility) | Low-temperature grease (low pour point, low viscosity) |
| Air Supply Treatment | Strengthen cooling, efficient water removal | Ultra-low dew point drying (refrigeration + adsorption type), heat tracing |
| Metal Components | Reserve expansion clearance | Select materials with low-temperature toughness, prevent leakage due to cold shrinkage |
| Control Components | High heat-resistant grade coils, heat dissipation, low power consumption | Install insulation boxes, local heating, prevent cold condensation |
| Installation | Keep away from heat sources, add heat insulation plates | Avoid exposure to wind and snow, wrap with thermal insulation materials |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
2014
Total Annual:
2000000-3000000
Employee Number:
15~20
Ecer Certification：
Verified Supplier
NINGBO SANMIN IMPORT & EXPORT CO.,LTD. was established in 2014.Our company is mainly engaged in instrumentation, pneumatic and hydraulic industry accessories and services, has more than 10 series of core products.Focusing on the production of automatic machinery to provide a variety of options, ... NINGBO SANMIN IMPORT & EXPORT CO.,LTD. was established in 2014.Our company is mainly engaged in instrumentation, pneumatic and hydraulic industry accessories and services, has more than 10 series of core products.Focusing on the production of automatic machinery to provide a variety of options, ...
Get in touch with us
Leave a Message, we will call you back quickly!