Ningbo Sanmin Import And Export Co.,Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | Negotiation |
| Delivery Time | Negotiation |
| Packaging Details | Plastic Bags , Boxes , Carton , Pallet or As Customer Advice |
| Nominal Pressure | 1.0 ( MPa ) |
| Type | Inlet Valve/Balance 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 | SANMINSE |
| Model Number | SMWZ644 |
| Certification | ISO9001 |
| Place of Origin | CHINA |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | Negotiation |
| Delivery Time | Negotiation | Packaging Details | Plastic Bags , Boxes , Carton , Pallet or As Customer Advice |
| Nominal Pressure | 1.0 ( MPa ) | Type | Inlet Valve/Balance 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 | SANMINSE | Model Number | SMWZ644 |
| Certification | ISO9001 | Place of Origin | CHINA |
| High Light | electromagnetic pulse valve ，pulse air valve | ||
Custom Air Disc Type Check Valve For Pharmaceutical / Chemical Industries
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 |
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company
Year Established:
2014
Total Annual:
2000000-3000000
Employee Number:
40~60
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, ...
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