Rack-and-pinion steering is quickly becoming the most common type of steering on cars, small trucks and SUVs. It is actually a pretty simple mechanism. A rack-and-pinion gearset is enclosed in a metal tube, with each end of the rack protruding from the tube. A rod, called a tie rod , connects to each end of the rack.
The pinion gear is attached to the steering shaft . When you turn the steering wheel, the gear spins, moving the rack. The tie rod at each end of the rack connects to the steering arm on the spindle.
The rack-and-pinion gear set does two things:
On most cars, it takes three to four complete revolutions of the steering wheel to make the wheels turn from lock to lock (from far left to far right).
The steering ratio is the ratio of how far you turn the steering wheel to how far the wheels turn. For instance, if one complete revolution (360 degrees) of the steering wheel results in the wheels of the car turning 20 degrees, then the steering ratio is 360 divided by 20, or 18: 1. A higher ratio means that you have to turn the steering wheel more to get the wheels to turn a given distance. However, less effort is required because of the higher gear ratio .
Generally, lighter, sportier cars have lower steering ratios than larger cars and trucks. The lower ratio gives the steering a quicker response-you don't have to turn the steering wheel as much to get the wheels to turn a given distance- which is a desirable trait in sports cars. These smaller cars are light enough that even with the lower ratio, the effort required to turn the steering wheel is not excessive.
Some cars have variable-ratio steering , which uses a rack-and-pinion gear set that has a different tooth pitch (number of teeth per inch) in the center than it has on the outside. This makes the car respond quickly when starting a turn (the rack is near the center), and also reduces effort near the wheel's turning limits.
When the rack-and-pinion is in a power-steering system, the rack has a slightly different design.
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Vacuum components are important parts of vacuum technology. These are all components of vacuum equipment which are necessary for the assembly of vacuum lines, e. g. flanges, seals and tube components (elbows, tees, crosses etc.). Applications in vacuum technology make high demands on the selection of material as well as the fabrication of these components.Â
1.Product Feature
These KFto KF Tee vacuum fittings follow ISO-KF standards. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges .The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of corrosive resistant stainless steel.
High vacuum rated to 1x10-8 Torr
Temperature rated to 200ºC maximum
Symmetric, nonrotatable geometries
Rotatable Bolt Rings available for LF sizes
Viton O-rings
Standard matte finish
NW16 through NW50 sizes
Body type dependent on tube size
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Specifications
Material
Â
 Flanges
304 Stainless Steel
 Tubing
304 Stainless Steel
Finish
Standard matte Finish
VacuumÂ
Â
 Range
1x10-8Â Torr
 Fittings Leak Test
2x10-10Â cc/sec of He
Temperature Range
Â
Viton
Minimum: -20ºC
Intermittent: 200ºC
Sustained: 150ºC
Silicone
Minimum: -50ºC
Intermittent: 200ºC
Sustained: 150ºC
Â
KF Flange Size
A(inch)
B(inch)
KF16
1.51"
3.02''
KF25
2.02"
4.05''
KF40
2.40"
4.80''
KF50
3.15"
6.30''
2.Manufacturing and packing process
Â
port
Shanghai Port or Ningbo Port, China
min order Qty.
1 piece
Supply ability
5,000 pieces/month
Payment terms
T/T, Western Union, Paypal, L/C
Packaging
Shrink Wrap-Carton Case-Exporting Plywood Case
Delivery time
Depends on quantity
Shipping mode
By sea, by air, by express
Wenzhou Hongtai Fluid Equipment Co., Ltd is a comprehensive and professional manufacturer, being integrating in designing, developing, manufacturing.We specialize in sanitary valves, Pipe Fittings and pumps, which is applied for milk, food, beer, pharmaceutical and other fields.
We can quote you favourable price,high quality&best after-sale services.Welcome to visit our factory.
3.The following are other products that we also supply:
Sanitary Valves
Sanitary Butterfly Valves
Sanitary Check Valves Sanitary Ball Valves Sanitary Reversal Valves Sanitary Diaphragm Valves Sanitary Sample Valves Sanitary Safety Valves Sanitary Control Valves Sanitary Relief Pressure Valves
Â
Â
Sanitary Pipe Fittings
Sanitary Elbow
Sanitary Tee Sanitary Reducer Sanitary Cross Sanitary Tri clamp Ferrule Tri clamp High pressure tri clamp Tri clamp spool Round lids Filter reducer with MNPT port Round lid with FNPT port Hemispherical lids Filter stack Sanitary Cap Sanitary Pipe Hanger Sanitary Tank Cleaning Ball Sanitary Hose Joint Sanitary Unions Sanitary Sight Glass Sanitary Strainer
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Â
Sanitary Manhole
Sanitary Round Manhole without Pressure
Sanitary Round Manhole with Pressure Sanitary Square Manhole Sanitary Oval Manhole
Â
Â
Sanitary Pumps
Sanitary Centrifugal Pump
Sanitary Lobe Pump Sanitary Self Priming Pump
Â
Â
Sanitary Tanks
Storage Tank
Fermentation Tank Mixing Tank Warm-keeping Tank
Â
Â
Sanitary TubeÂ
Seamless TubeÂ
Weldless Tube
Â
Â
Sanitary Gasket
Silicone/EPDM/PTEF/VITON Gasket for Triclamp
Silicone/EPDM/PTEF/VITON Gasket for Union Silicone/EPDM/PTEF/VITON Gasket for Butterfly Valve Silicone/EPDM/PTEF/VITON Gasket for Manhole Cover
FAQ
Q1. Are you a trading company or factory? Â
 Without doubt, We are a manufacturing factory.
Q2. Do you have FDA certificate for the materials?Â
Yes,because FDA is a basic and very important certificate for the food processing machines.
Q3. How do you control the quality?Â
Quality control is very important to avoid material mixing and poor quality. We control the quality from beginning to the end. We only have 304 and 316L two different materials. 100% inspection on raw materials. And during the production, different materials in different places. After materials are finished, we choose 10%Â Â forÂ
inspection. If there is 0.1% problem in 10%, then no excuse to go ahead for inspecting 100% of the materials.
Q4. About chemical components
This is first concerning for customers. We take our materials to our laboratory for each lot. You may ask for the
 laboratory report any time.Â
Q5. If there is any quality problem, how do you solve it?Â
We are very proud that we never let one customer leave us. We are not 100% perfect,and there are some  quality problems. But We try our best to provide the correct materials in the beginning , so that we take  less  time for quality problems.Â
If there is any quality problem, we take the responsibility. We believe what we are doing together,  it will get backtomorrow. If we always take our responsibility, we keep our customers with us. If not, customers will leave us.
Â
Q6. How long is your delivery time?  Â
For normal products in 10-15 days; for bulk order, in 25-30 days. It depends.
Q7. WarrantyÂ
 3 years warranty for all of our stainless steel products. Gaskets are not included due to the different application for customers.Â
More questions are also appreciated.Â
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Mobil: 0086-13626538003
Tel.: 0086-577-86812651
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Vacuum components are important parts of vacuum technology. These are all components of vacuum equipment which are necessary for the assembly of vacuum lines, e. g. flanges, seals and tube components (elbows, tees, crosses etc.). Applications in vacuum technology make high demands on the selection of material as well as the fabrication of these components.Â
1.Product Feature
These KFto KF Tee vacuum fittings follow ISO-KF standards. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges .The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of corrosive resistant stainless steel.
High vacuum rated to 1x10-8 Torr
Temperature rated to 200ºC maximum
Symmetric, nonrotatable geometries
Rotatable Bolt Rings available for LF sizes
Viton O-rings
Standard matte finish
NW16 through NW50 sizes
Body type dependent on tube size
Â
Specifications
Material
Â
 Flanges
304 Stainless Steel
 Tubing
304 Stainless Steel
Finish
Standard matte Finish
VacuumÂ
Â
 Range
1x10-8Â Torr
 Fittings Leak Test
2x10-10Â cc/sec of He
Temperature Range
Â
Viton
Minimum: -20ºC
Intermittent: 200ºC
Sustained: 150ºC
Silicone
Minimum: -50ºC
Intermittent: 200ºC
Sustained: 150ºC
Â
KF Flange Size
A(inch)
B(inch)
KF16
1.51"
3.02''
KF25
2.02"
4.05''
KF40
2.40"
4.80''
KF50
3.15"
6.30''
2.Manufacturing and packing process
Â
port
Shanghai Port or Ningbo Port, China
min order Qty.
1 piece
Supply ability
5,000 pieces/month
Payment terms
T/T, Western Union, Paypal, L/C
Packaging
Shrink Wrap-Carton Case-Exporting Plywood Case
Delivery time
Depends on quantity
Shipping mode
By sea, by air, by express
Wenzhou Hongtai Fluid Equipment Co., Ltd is a comprehensive and professional manufacturer, being integrating in designing, developing, manufacturing.We specialize in sanitary valves, pipe fittings and pumps, which is applied for milk, food, beer, pharmaceutical and other fields.
We can quote you favourable price,high quality&best after-sale services.Welcome to visit our factory.
3.The following are other products that we also supply:
Sanitary Valves
Sanitary Butterfly Valves
Sanitary Check Valves Sanitary Ball Valves Sanitary Reversal Valves Sanitary Diaphragm Valves Sanitary Sample Valves Sanitary Safety Valves Sanitary Control Valves Sanitary Relief Pressure Valves
Â
Â
Sanitary Pipe Fittings
Sanitary Elbow
Sanitary Tee Sanitary Reducer Sanitary Cross Sanitary Tri clamp Ferrule Tri clamp High pressure tri clamp Tri clamp spool Round lids Filter reducer with MNPT port Round lid with FNPT port Hemispherical lids Filter stack Sanitary Cap Sanitary Pipe Hanger Motorcycle Steering & Transmission System
Power Rack-and-pinion
Sanitary 304 Stainless Steel Vacuum Fittings ISO-Kf Flange Tee
O-Ring Material: Viton
Polishing: Matte Polishing, Mirror Polishing
Connections: Clamp
Maximum Working Temperature: 200 Degree Celsius
Trademark: OEM
Transport Package: Shrink Wrap-Carton Case-Exporting Plywood Case
Specification: 304 stainless steel
Origin: Wenzhou
HS Code: 7307220000
O-Ring Material: Viton
Polishing: Matte Polishing, Mirror Polishing
Connections: Clamp
Maximum Working Temperature: 200 Degree Celsius
Trademark: OEM
Transport Package: Shrink Wrap-Carton Case-Exporting Plywood Case
Specification: 304 stainless steel
Origin: Wenzhou
HS Code: 7307220000
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Sanitary 304 Stainless Steel Vacuum Fittings ISO-KF Flange Tee
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Sanitary 304 Stainless Steel Vacuum Fittings ISO-KF Flange Tee