M3 Zinc-Plated DIN 150 Plain Washers Factory Directly Flat Gasket Washer Color Customized
Package details:
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) For Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) According to customers' requirements.
Gaskets - Installation requirements for sealing gaskets
1. The sealing surface of gasket and flange should be cleaned without any scratches, spots and other defects that affect the sealing performance of the connection.
2. The outer diameter of the sealing gasket should be smaller than the outer surface of the flange sealing surface, and the inner diameter of the sealing gasket should be slightly larger than the inner diameter of the pipe. The difference between the two inner diameters is generally 2 times the thickness of the sealing gasket to ensure that the inner edge of the sealing gasket does not extend into the container or pipeline after compression, so as not to hinder the flow of the fluid in the container or pipeline.
3, the sealing gasket preloading force should not exceed the design provisions, so as to avoid the sealing gasket over-compression loss of rebound ability.
4. When sealing gasket is pressed, it is best to use torque wrench.For large bolts and high strength bolts, it is best to use hydraulic tensioner.Tightening torque should be calculated according to the given sealing gasket compression, and the oil pressure of the hydraulic tensioner should also be determined by calculation.
5. When installing the sealing gasket, the nuts should be tightened in order.But should not twist once to reach the design value.Generally, it should be circulated at least 2~3 times in order to evenly distribute the stress of the sealing gasket.
6. For the pressure vessels and pipes of flammable and explosive media, safety tools should be used when replacing the sealing gaskets, so as not to cause sparks due to the collision between the tools and flanges or bolts, leading to fire or explosion accidents.[1]
7. If there is leakage in the pipeline, it must be replaced or adjusted to install the sealing gasket after depressurized treatment. Operation with pressure is strictly prohibited.
FAQ
1.How do you let me trust you?
We are a Golden supplier in Alibaba who do business for more than 5 years. You can make an order by Alibaba to us directly.
2.How about your price?
High-quality products with a reasonable price suitable for your market.
3.How do you control your quality?
We request a QC inspection for each batch of goods. And we can provide you inspection report and mill certificate if you want..
4.Could you provide free samples?
For new customers, We can provide free samples for standard fasteners. But the clients will pay the express charges. For regular customers, We will send you free samples and pay express charges by ourselves.
5.How about your delivery time?
Generally speaking, All the goods have stock with little quantity, we can delivery them with one week. If the quantity is 1-2container, we can give you with 30-45days.
6.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallet is about 900-960kg, We also can make the customer's logo on the cartons. Or we customized cartons according to customers' requirement, If you need small box packing, we can do according to your requirement.
7.What is your payment term?
We can accept T/T,LC for general order. For new customer, we request 20%-50% T/T in advance, and balance payment should against B/L copy. For regular customer, we can provide delay payment after B/L date about 30-90 days
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