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Product Introduction
Valves are pipeline accessories used to open and close pipelines, control the flow direction, and regulate and control the parameters (temperature, pressure, and flow) of the transport medium.
Product Parameter (specification)
Product nameCold Forging Sleeve and Bushing
MaterialCarbon Steel, Stainless Steel, Aluminum, BrassInner box sizeNeed asked
TechnologyCNC machiningCarton sizeNeed asked
ColourNeed askedPackaging instructionCarton Box
ApplicationAutomotive industry, Marine equipment, food machinery, building hardware,heat treatment equipment, petroleum equipment and accessory for high-speed rail,nuclear power station and aerospaceMode of transportExpress;air;shipping
Product sizeNeed askedProofing time1-7days
Net weightNeed askedDelivery time15-30days
Gross weightNeed askedPlace of originChina
Warranty12 monthsAfter sales service24 hours online
Product feature and application
Valve Spare Parts List
Valve Stems
The valve stem is an important part of the valve and is used for transmission. It is connected to the actuator or handle. The valve directly moves or rotates below to achieve the valve switching or adjusting.
Valve Stem Caps
Valve Stem Caps can be easily tightened or loosened using appropriate tools and prevents air from escaping. These metal caps come with a rubber washer or an o-ring to seal the valve completely
Valve Trims
The valve trim(Plug) is a valve part whose basic function of the directional control, pressure control or flow control is achieved by the valve body being moved by the valve trim.
Valve Seat Rings
The Valve seat rings made from the quality alloy steel via CNC turning. The ring is precise dimensions as well as high corrosion resistance.
Valve Tappets
Valve tappets are made from forging and precision machining, grinding. All pump tappet were head-treated, and the hardness are above 58-60. Some custom require TD coating to prevent the wear face wear out.
Valve Shafts(Spindle)
Valve shaft(Spindle) is carefully manufactured using high quality raw material via CNC machining under our guidance of professionals.
Valve Nut(Stem Nuts, Sleeve Nuts, Eyebolt Nuts, Bonnet Nuts)
Production details
路 Product name:Cold Forging Sleeve and Bushing
路 Material: Carbon Steel, Stainless Steel, Aluminum, Brass
路 Machining Tolerances:0.01mm
路 Machining Process:Cold Forging, CNC Turning, CNC Milling, Grinding, Threading, Tapping, Bending, Welding, Drilling, Forging
路 Min. Order:100PCS.
路 Surface Treatment:Polishing, Heat Treatment, Chroming, TD coating
路 Packing:Carton Box, Blister tray, Pallet, Wooden Case.
路 Certificate:ISO9001:2008, ISO/TS16949
Deliver,shipping and serving
Q1. What is your terms of packing?
A: Generally, we pack our wheels in brown cartons and also accept to design customers' logo on carton.
Q2. What is your terms of payment?
A: T/T 40% as deposit, and 60% before delivery. We'll show you the photos of the products and packages before you pay the balance. Also, we accept flexible safe payment term, T/T,,WESTERN UNION,PayPal.
Q3. What is your terms of delivery?
A: FOB, CFR, CIF, DDU, DDP
Q4. How about your delivery time?
A: The specific delivery time depends on the items and the quantity of your order.
1. For stock wheels: we need 7 days to prepare cargo after deposit receipt.
2. For production order: generally, it will take 15 to 40 days after receiving your advance payment.
Q5. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost. Tell us the sample you prefer and we will check our stock.
Q6. Do you test all your goods before delivery?
A: Yes, we have 3 times 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We renew our wheels design and expand wheels range in short time, try to give you more complete wheel mold list;
3. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Q9.: What's your best convenient contact way:
Call: +86 137 9879 5337 (whatsapp&wechat)
Email: [email protected]
FAQ
Q1: What are the parts of the valve锛?/p>
A: Drive part
Valve stem: for the transmission of driving force, drive the movement of the valve core;
Transmission mechanism: a part that produces a driving force, such as a handwheel;
To perform some
Valve body: medium circulation channel, withstand medium pressure and forced closure of the force;
Spool: the opening and closing parts of the valve, such as the rolling plate of the gate valve, the ball valve, etc.
Seat: the sealing part between the valve spool falling and the valve body;
Bonnet: connection between the body and the drive part for sealing;
Packing box: seal between cover and stem to prevent media leakage.
Q2: What are the types of valves?
A: 1. Classification by function and use
(1) Cut-off valve: cut-off valve also known as closed-circuit valve, its role is to put on or cut off the medium in the pipeline.Cut-off valves include gate valves, globe valves, plug valves, ball valves, butterfly valves and diaphragm valves.
(2) Check valve: check valve, also known as one-way valve or reverse check valve, its role is to prevent the medium in the pipeline backflow.Water pump suction off the bottom valve also belongs to the check valve category.
(3) Safety valve: the role of the safety valve is to prevent the medium pressure in the pipeline or device from exceeding the specified value, so as to achieve the purpose of safety protection.
(4) Control valve: control valve including control valve, throttle valve and pressure reducing valve, its role is to regulate the pressure of the medium, flow and other parameters.
(5) Shunt valve: shunt valve including a variety of distribution valves and traps, and its role is to distribute, separate or mixed pipeline medium.
2. Classified by nominal pressure
(1) Vacuum valve: refers to the valve whose working pressure is lower than the standard atmospheric pressure.
(2) Low pressure valve: refers to the valve with nominal pressure PN 鈮?1.6mpa.
(3) Medium pressure valve: refers to the valve whose nominal pressure PN is 2.5, 4.0 and 6.4Mpa.
(4) High-pressure valve: refers to the working pressure PN for 10 ~ 80Mpa valve.
(5) Ultra-high pressure valve: refers to the valve with nominal pressure PN鈮?00Mpa.
3. Classification according to working temperature
(1) Ultra-low temperature valve: used for medium operating temperature t<-100鈩?valve.
(2) Cryogenic valve: used for medium operating temperature -100鈩冣墹t鈮?40鈩?valve.
(3) Normal temperature valve: used for medium operating temperature -40鈩冣墹t鈮?20鈩?valve.
(4) Medium temperature valve: used for medium working temperature of 120鈩?/p>
(5) High temperature valve: used for medium working temperature t>450鈩?valve.
4. Classification by driving mode
(1) Automatic valve refers to the valve that does not need external force drive, but relies on the energy of the medium itself to make the valve move.Such as safety valve, pressure reducing valve, steam trap, check valve, automatic regulating valve.
(2) Power drive valve: power drive valve can be driven by various power sources.
Electric valve: a valve driven by electricity.
Pneumatic valve: valve driven by compressed air.
Hydraulic valve: a valve driven by oil or other liquid pressure.
In addition, there are several types of driving combination, such as gas-electric valve.
(3) Manual valve: manual valve with the help of hand wheel, handle, lever, sprocket wheel, manually operated valve action.When the valve opening and closing torque is large, the wheel or worm gear reducer can be set between the hand wheel and the valve stem.When necessary, universal joint and drive shaft can be used for remote operation.
5. Classification by nominal size
(1) Small size valve: valve with nominal diameter DN鈮?0mm.
(2) Medium size valve: the valve with nominal diameter DN of 50 ~ 300mm.
(3) Big diameter valve: the nominal valve DN is 350 ~ 1200mm valve.
(4) Extra-large size valve: valve with nominal diameter DN鈮?400mm.
6. Classification by structural features
(1) Cut-off valve: the opening and closing parts (disc) are driven by the valve stem to move up and down along the seat center line;
(2) Plug valve: the opening and closing parts (gate valve) are driven by the valve stem to move up and down along the center line perpendicular to the seat;
(3) Plug valve: the opening and closing parts (cone plug or ball) rotate around their own center line;
(4) Swing valve: the opening and closing parts (disc) rotate around the shaft outside the seat;
(5) Butterfly valve: the opening and closing parts (disc) rotate around the fixed shaft in the seat;
(6) Slide valve: the opening and closing parts slide in the direction perpendicular to the channel.
Latest news
NOTES FOR MACHINING OF CNC LATHE
Precautions when processing CNC lathes: The machining process of CNC lathes is similar to that of ordinary lathes. However, since CNC lathes are one-time clamping and continuous automatic machining completes all turning operations, the following aspects should be noted.
1. Reasonable choice of cutting amount: For high-efficiency metal cutting, the material to be processed, cutting tools, and cutting conditions are the three major factors. These determine processing time, tool life and process quality. A cost-effective processing method must be a reasonable choice of cutting conditions. The three elements of the cutting conditions: cutting speed, feed rate and depth of cut directly cause damage to the tool. As the cutting speed increases, the tip temperature rises, causing mechanical, chemical, and thermal wear. Cutting speed is increased by 20% and tool life is reduced by 1/2. The feed conditions are related to the wear behind the tool in a very small range. However, the feed rate is large, the cutting temperature rises, and the rear wear is large. It has less effect on the tool than the cutting speed. Although the depth of cut has no effect on the cutting speed and the feed rate, in the case of small depth cutting, the hardened layer is formed on the material to be cut, which also affects the life of the tool. The user should select the cutting speed to be used according to the material to be processed, hardness, cutting state, material type, feed amount, depth of cut, and so on. The selection of the most suitable processing conditions is selected on the basis of these factors. Regular, stable wear and longevity are ideal conditions. However, in actual operations, the choice of tool life is related to tool wear, machined dimensional changes, surface quality, cutting noise, machining heat, and so on. When determining the processing conditions, it is necessary to conduct research according to the actual situation. For difficult-to-machine materials such as stainless steel and heat-resistant alloys, coolant or a rigid blade can be used.
2. Reasonable selection of tools: (1) When roughing, choose high-strength and durable tools to meet the requirements of large back-feeding and large feed. (2) When finishing, it is necessary to select tools with high precision and durability to ensure the processing accuracy. (3) In order to reduce the tool change time and facilitate the toolset, the machine clamp and the machine clamp blade should be used as much as possible.
3. Reasonable selection of fixtures: (1) Try to use universal fixtures to clamp the workpieces, avoiding the use of special fixtures; (2) Part positioning reference overlap to reduce positioning errors.
4. Determine the processing route: The machining route is the movement track and direction of the tool relative to the part during the index control machine tool processing. (1) The machining accuracy and surface roughness requirements should be guaranteed; (2) The machining route should be shortened as much as possible to reduce the tool idle travel time.
5. The connection between processing route and machining allowance: At present, under the condition that the CNC lathe has not reached universal use, the excessive allowance on the blank should be generally arranged on the general lathe, especially the allowance that contains forging, casting hard cortex. If the CNC lathe must be used when processing, attention should be paid to the flexible arrangement of procedures.
6. Key points of fixture installation: At present, the connection between the hydraulic chuck and the hydraulic clamping cylinder is realized by the tie rod. The hydraulic chuck clamping points are as follows: Firstly, remove the nut on the hydraulic cylinder by hand, remove the pull tube, and remove the pull tube from the rear end of the main shaft. Pull out and remove the chuck by removing the chuck fixing screw.China CNC Turning Parts manufacturers
website:http://www.chinacncpartsfactory.com/cnc-turning-parts/ |
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