Payment & Shipping Terms:
|Body Material:||CS, SS, Alloy, Ductile Iron||Keyword:||Mechanical Couplings , Dismantling Joints|
|Applicable Media:||Water, Sea Water, Oil, Air, Etc||Angular Deflection:||+/-3°|
Unique gasket with circumferential ribs sealing on corroded,scored or pitted pipes
WESDOM Group. Headquartered in ZhengZhou, which is the geographical center of China, Central Plains hinterland,China's major railways, aviation, highways, electricity, post and telecommunications hub cities, International Air Logistics Center, also an international dry port city!
Group consists of six companies, in addition to HeNan WESDOM Import and ExportTrading Co., Ltd. which is specialized in the import and export of foreign trade, the other five companies all producing factories, mainly located in Tianjin, Hebei, Liaoning and Zhejiang. The major products for a variety of valves of cast iron, steel, stainless steel, copper materials; malleable iron and stainless steel pipe fittings; ductile iron, stainless steel fittings; flanges and other products, mainly used in construction, petroleum, chemical, power, water supply and drainage, municipal, medical people's livelihood and other industries.
|Q1: How long is the delivery time?
A1: Generally it's 5-10 days we have stock. Or it's 15-90 days depend on different product and quantity.
|Q2: What about the payment term?
A2: T/T 30% deposit, balance payment after finished production before shipment. Or as discussed.
|Q3: Can I have a sample order?
A3: Yes, we agree sample order, mixed different models is also acceptable.
|Q4: What's your MOQ?
A4: We can support 1 pc order. Welcome you to check our quality.
|Q5: What's your quality inspection? Do you test all your goods before delivery?
A5: Yes, 100% test. It integrates R&D, casting, production, processing, painting, assembly, testing, sales and after-sales service, and strict quality requirements, according to GB, ASME, API, DIN standard, and we have gained ISO9001;2008, CE, and TUV certification.
|Q6: Could I customize special request valve or new design products?
A6: We have own R&D team and more than 70 researchers and engineers. Can give you the best support on quality management and techniques, meet your different needs.
|Q7: How does your factory do regarding quality control?
A7: Quality is priority. Valve always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001;2008, CE, TUV, authentication.
1. Product inspection and classificationProducts must pass the inspection of the production factory quality department before leaving the factory.Product inspection is divided into factory inspection and type inspection.
2 type testIn any of the following cases, type test shall be conducted.
A. Trial production and verification of new or old products transferred to the factory.
B. After production, when the product structure, material and process are greatly changed, which may affect the product performance.
C. In normal production, it shall be carried out every six months.
D. When production resumes after a long period of suspension.
E. When there is a big difference between the factory inspection result and the last type test result.
F. When the requirements of type test are put forward by the national quality supervision agency.
3. Product sampling inspection rules
1). Shape and position of end reinforcement ringSampling inspection shall be conducted once a month. Each sampling inspection shall be conducted on two products of one specification and one type for X-ray inspection.If one of the test results is unqualified, two of the products shall be selected for the second test.If there is still one unqualified item, the product shall be judged as unqualified.
2). Hydraulic testProducts with nominal inner diameter of less than 300mm shall be inspected quarterly, products with nominal inner diameter of 350mm-1000mm shall be inspected semi-annually, and products with nominal inner diameter of more than 1200mm shall be inspected annually.Two products of one specification and one type are selected for random inspection each time.If one of the test results is unqualified, then two of the products will be selected for the second test.If there is still one unqualified item, that batch of products shall be judged as unqualified.
3). Vacuum resistanceEvery six months sampling inspection, each sampling inspection choose a specification, a type of two products.If one of the test results is unqualified, two of the products will be taken out for reinspection.If there is still one unqualified item, that batch of products shall be judged as unqualified.
4) displacement performanceSample inspection for each specification in each batch.Two products are extracted from each specification for displacement performance test.If one of the test results is unqualified, two of the products will be taken out for reinspection.If there is still one unqualified item, that batch of products shall be judged as unqualified.
5) physical properties of rubberAging performance shall be inspected quarterly and other performance shall be inspected monthly.One rubber material is extracted at a time and the specified items are inspected.If one of them is unqualified, double samples should be taken to reinspect the item.If there is still one piece unqualified, the batch of rubber shall be judged as unqualified.
6). Viscosity and strengthEvery six months, two samples are taken from products with nominal inner diameter of more than 100mm for testing.If one of the test results is unqualified, two more samples shall be taken from the batch for retesting.If there is still one unqualified item, the batch of such products shall be judged as unqualified.
7). Water quality inspectionUnder normal production conditions, check once a year, but when there is a change in the rubber formula, should be ready to send rubber samples for inspection.One rubber material is extracted at a time and inspected according to the items specified in GB/T5749 and GB/T17219.If the test result is unqualified, two samples from the batch of rubber shall be retested.If there is still one unqualified product, the products are unqualified.
Contact Person: Han