Blind flanges are commonly used in petrochemical, pipe engineering, public services and water works.
A blind flange is useful for making repairs to a pipeline further up the line. In fact, during construction of a pipeline, a blind flange may be built into the final length of pipe. This allows for expansion or continuation of the pipeline simply by adding onto the final flange.
| Material | Carbon steel | ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH |
| P250GH, P280GHM 20Mn,20#,Q235,Q345 |
| Stainless steel | ASTM A182, F304/304L, F316/316L |
| Alloy steel | ASTM A182 A182 F12,F11,F22,F5,F9,F91etc. |
| Standard | ANSI | Class 150 Flanges-Class 2500 Flanges |
| DIN | 6Bar 10Bar 16Bar 25Bar
40Bar |
| JIS | 5K Flanges-20K Flanges |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| TYPE | 1.Welding neck Flange 2.Slip on |
| 3.Blind flange 4.Long welding neck flange |
| 5.Lap joint flange 6.Socket welding |
| 7.Threaded flange 8.Flat flange |
| Surface | Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer,hot-dipped Galvanized,electrical galvanized |
| Connection | Welding, Threaded |
| Technical | Forged, Rolling |
| Size | DN10-DN3600 |
| Package | 1.Standard export packaging (Plywood Case Of Outside,Plastic Cloth Of Inside). 2:As Customers' Requirements |
| Heat Treatment | Normalizing, Annealing, Quenching Tempering |
| Certificate | ISO9001,PED certificates |
| Applications | Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry,and general pipes connecting projects etc.
|
Our Service
Q: May I have free samples before ordering?
Yes, for small amount,free samples can be provided.Freight is collected on customer
Q: What's the MOQ?
No MOQ for standard products.Custom parts can be discussed
Q: What is the lead time?
Common items are stocked--3-5 days
Big volume order usually takes about 20-30 days
Q: What's the payment term?
T/T and L/C.
Q:Do you have mill test certificate?
Yes,each order is traceable by Inspection certificate EN10204 3.1
we can sign on Non-disclosure Agreement of Commercial Secrets.
Custom facbrication is acceptable.
Any customer wants to be our distributor and partner.Please discuss with us.You will get favorbale support.
Q:How we make the quality control?
1. Material control from raw materials. For raw material checking, we check 100%by chemical liquid. Any property mistakes would be rejected.
2. Sand hole inspection after raw materials are machining before polishing.
3. Carbon component report can be provided if needed.
(in production)
4. 2nos of new samples to be checked against technical drawing.
5. After we get the finished products, we check for surface roughness, thickness equality,roundness, size measurement and sand holes again.
6. For all finished products, the checking quantity is not less than 10% of total quantity.
7. Before shipment, we check for the quantity of each product, in order to find out any missing quantity or wrong product.
Q:Do you have product warranty?
Yes,12 months warranty.100% inspection on finished products before dispatch.Inferior products can be returned or replaced without excuse.
Repair parts could be supplied for replacement.
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