Stainless Steel Spring Check Valve

Spring Check valve info:

Connection Form: Thread
Material: Stainless Steel
Structure: Spring
Function: No-Return
Application: Industrial Usage, Water Industrial Usage, Household Usage
Type of Valve: Spring
Export Markets: Global

Swing check valve info:

Connection Form: Thread
Material: Stainless Steel
Structure: Swing
Function: No-Return
Application: Industrial Usage, Water Industrial Usage, Household Usage
Type of Valve: Swing
Size: 1/2"-4"
Place of Origin: Zhejiang Pr. China
Pressure: 200psi
Export Markets: GlobalFAQ:
1.   Are you a trader or manufactor?  
      We are a manufactor

2.   Can your products reach to FDA , CE and 3A requirements? 
      Yes, all of our material can reach to the requirements of FDA, CE and 3A

3.   How can you ensure the quality?
      We always take the Quality as the most important point during our business. So we have a formal regulation to control the quality, the procedure will be: A. The raw materials will be 100% inspected. we will ruturn to the supplier for any of poor raw materials. B. during production, different materials will be charged by different person to avoid any mixing. C. After production, we always inspect 50% for each lot. If there is any problem in the 50%, then we will go back to inspect 100%.  of course, if our customer have the special requirement to inspect 100%. We can do that as well.

4.   Can you supply the 3.1 Quality Certificate (including the chemical composition analysis resuls)?
      Yes, we inspect chemical composition for every lot of our material ,  and supply the record to issue the 3.1 Quality Certificate. If necessary, we can send the 3.1 Quality Certificate together with the shipping documents.

5.  How do you solve the quality Complaint, if any?
We are prety proud that we never let any customer leave us bcz the quality.   We'll do our best to supply the correct products, so we receive little quality complaint during our 15 years business.  If it is happend, we'll be responsible for it from the begining to the end.

6.   How long would be the delivery time? 
Regarding the common products, 8-10 days will be enough; for bulk order, 15-25days is required.  It depends the order quantity

7.    Any further questions, pls feel free to let me know

 

Sand Casting is used to produce a wide variety of metal components with complex geometries. These parts can vary greatly in size and weight, ranging from a couple ounces to several tons. Some smaller sand cast parts include components as gears, pulleys, crankshafts, connecting rods, and propellers. Larger applications include housings for large equipment and heavy machine bases. Sand casting is also common in producing automobile components, such as engine blocks, engine manifolds, cylinder heads, and transmission cases.


Sand casting, the most widely used casting process, utilizes expendable sand molds to form complex metal parts that can be made of nearly any alloy. Because the sand mold must be destroyed in order to remove the part, called the casting, sand casting typically has a low production rate. The sand casting process involves the use of a furnace, metal, pattern, and sand mold. The metal is melted in the furnace and then ladled and poured into the cavity of the sand mold, which is formed by the pattern. The sand mold separates along a parting line and the solidified casting can be removed. The steps in this process are described in greater detail in the next section. In sand casting, the primary piece of equipment is the mold, which contains several components. The mold is divided into two halves - the cope (upper half) and the drag (bottom half), which meet along a parting line. Both mold halves are contained inside a box, called a flask, which itself is divided along this parting line. The mold cavity is formed by packing sand around the pattern in each half of the flask. The sand can be packed by hand, but machines that use pressure or impact ensure even packing of the sand and require far less time, thus increasing the production rate. After the sand has been packed and the pattern is removed, a cavity will remain that forms the external shape of the casting. Some internal surfaces of the casting may be formed by cores.


Sand casting is able to use of almost any alloy. An advantage of sand casting is the ability to cast materials with high melting temperatures, including steel, nickel, and titanium. The four most common materials that are used in sand casting are shown below, along with their melting temperatures

Materials              Melting temperature   
Aluminum alloys     1220 °F (660 °C)   
Brass alloys           1980 °F (1082 °C)   
Cast iron               1990-2300 °F (1088-1260 °C)   
Cast steel              2500 °F (1371 °C)   

The material cost for sand casting includes the cost of the metal, melting the metal, the mold sand, and the core sand. The cost of the metal is determined by the weight of the part, calculated from part volume and material density, as well the unit price of the material. The melting cost will also be greater for a larger part weight and is influenced by the material, as some materials are more costly to melt. However, the melting cost in typically insignificant compared to the metal cost. The amount of mold sand that is used, and hence the cost, is also proportional to the weight of the part. Lastly, the cost of the core sand is determined by the quantity and size of the cores used to cast the part.

Sand casting process advantages
Can produce very large parts
Can form complex shapes
Many material options
Low tooling and equipment cost
Scrap can be recycled
Short lead time possible

Applications:
Construction Machine Parts,Scaffolding Parts,Engine blocks and manifolds, machine bases, gears, pulleys, agriculture parts,Marine Parts,medical parts,hardware, automobile parts,ect.

Sand Casting

Sand Casting,Aluminum Sand Casting,Stainless Steel Sand Casting,Sand Precision Casting

Ningbo City Yinzhou Ruican Machinery Co.,Ltd , https://www.kstcasting.com