NBSANMINSE SMF08V 1/8 1/4 Small Vacuum Pressure Switch Designed Automatic Reset Switch Used In Vacuum Environment
ON>OFF is NO , ON<OFF is NC
The images shown are not all the actual item and are for your reference only
NC = Normally Closed
NO = Normally Open
Electrical Connections : 6.35 X 0.8
NPT1-8 = NPT 1/8"
NPT1-4 = NPT 1/4"
Normally is brass material,Normal close,if special request ,please memo for us during payment
SMF08-V vacuum switch is automatic reset pressure switch designed, there is deadband between close and open pressure setpiont. It can be used for vacuum pressure controlling for vacuum tank, refrigerating equipment or room cooler units or remote outdoor condensing units for domestic cooling systems.
Typical Applications:safety controls / air conditioning / refrigeration / vacuum tank pressure control/ braking system of automobile
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Seires No.
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SMF08-V
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Medium
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Air, Water, motor oils, transmission oils, Hydrocarbon Media, Refrigeration fluid
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Pressure Set Point
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-0.85 Bar to 1.5 Bar
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Proof Pressure
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10 Bar
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Burst Pressure
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100 Bar
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Operating Temperature Range
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-30° C to ~ 80° C
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Switch Type
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SPST- NC, SPST-NO
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Electric Rating
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120/240VAC, 3A
5~28VDC, 6A
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Dielectric Strength
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750 Vrms across open contacts
1550 Vrms terminals to fitting
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Terminals
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1/4” blade, wire lead
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Life at Related Load
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100,000 cycles
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Connection
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1/8NPT, G1/8", 1/4NPT, G1/4", 7/16-20 UNF, etc.
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Options
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various connector thread sizes; wire leads (potted & sealed); protective cover.
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FAQ
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 for work.
Q: What ' s your delivery date ?
A: It depends on the number of orders . Delivery date is 7 - 30 days .if small order,pls buy from our aliexpress shop, If you need emergency products , we can speed up the production of the first arrangement .
Q: what types of products you can make ?
A: We can make many kinds of stainless steel materials and brass,aluminum . Valve / solenoid valve / electric valve / pneumatic valve and air cylinder products and so on .
Q: What is the price of the product ?
A: Our prices are based on the size and type of material , if you can give me the information ,
then we can give you an estimated price is for reference only . We can do any size and any desgin .
Q: How much is our minimum order quantity ?
A: Our minimun quantity is 1 Piece .
Why choose us
1: High quality with competitive price .
2: Sample order & small quantity order is acceptable .
3: Customize according to your special request .
4: Reliable quality assured and active after-sell service
5: Various style for each products and completely series pneumatic products .
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 |
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