Perforated Filter Tubes Manufactured with Oval Holes

We have formed a good reputation and been widely recognized by the majority of users by reassuring Solid Rigid Centralizer, Water Well Screen, API 5CT Seamless Steel Casing Pipe, satisfying price and inspiring service. Trustworthy good quality and excellent credit score standing are our principles, which will help us at a top-ranking position. We constantly practice strict requirements for internal strength and quality, external flexibility and timely improvement of efficiency. We will make up for the creation of new technologies, products and services to meet and surpass the future needs of customers and to bring benefits and create value for our partners.

Huadong screen Company Profile:
Huadong screen co.,ltd is a famous manufacturer which integrates the research and development, design, manufacture and sell water well screens/johnson screens/wedge wire screen/rod base screen/continuous slot screen/non-inforced Johnson screen, oil well screens and sand control well screens, bridge slotted well screens, pipe based well screens/perforated base pipe with screen jacket/pipe base screen/reinforced Johnson type screen, perforated pipe (base pipe), gravel pre-packed well screens, perforated tube,passive water intake screens etc. water, oil and gas well filtering products as well as API/Stainless Steel Casing& Tubing and pipes and industrial parts.

Details of Perforated Well Casing/Perforated Tube Pipe:
1. Our perforated casing pipe uses stainless steel or J55/K55/N80/L80 casing and perforated tube of API standard, with high overall strength, not so easy to deformation.
2. The hole is uniform and smooth, without burrs.
3. The whole pipe will be anti-corrosion treated and form a protective covering. It can effectively improve the resistance to corrosion and abrasive resistance of the pipe, prolong the working life underground.
4. It’s easy to operate and convenient to use.
5. The hole sizes and numbers can be custom designed.

Product Name	Perforated Well Casing/Perforated Tube Pipe
Welding Technique	Electric Resistance Welding(ERW)
Standards	API 5CT, API5L, ASTM A312,ASTM A409,etc
Payment Terms	L/C at sight,D/P,Western Union, Money Gram acceptable, T/T preferred
Application	chemical industry and building, construction foundation piles, steel structure building, for low-pressure fluid service.
Additional Fabracation	plain ends pipe,cutting threading, beveled, black and color painting, anti-rusting oils teel pipe, varnish painting steel pipe, zinc-coating steel pipe, steel stamp, drilling, diameter reducing pipe etc.
Zinc Coated	According to your customers requests
Supply Experience	5 years
Business Type	Manufacturer
Cooperation Shipowner	MSK, CMA, COSCO, NYK, OOCL, HPL, YML, MOL
Remarks	We can do according to our customers requests! All kinds of steel hollow pipes can be provided. Don't hesitated to contact us.

Engineering Drawing of Perforated Well Casing/Perforated Tube Pipe:
Specifications of ASTM A312 Stainless Steel 316L Perforated Well Casing/Perforated Tube Pipe:

Pipe size(inch)	Holes per (feet)	Size of hole(inch)	Perforated Area per feet
3/4”	78	3/16”	2.15
1”	54	5/16”	4.14
1-1/4”	66	5/16”	5.06
1-1/2”	78	5/16”	5.06
2-1/16”	78	5/16”	5.98
2-3/8”	90	3/8”	9.94
2-7/8”	102	3/8”	11.26
3-1/2”	126	3/8”	13.91
4”	138	3/8”	15.24
4-1/2”	150	3/8”	16.56
5”	162	3/8”	17.88
5-1/2”	174	3/8”	19.21
6-5/8”	186	3/8”	20.53
7”	222	3/8”	24.51
9-5/8”	294	3/8”	32.46

Besides, we can design and manufacture according to your specific requirements.

Pictures of ASTM A312 Stainless Steel 316L Perforated Well Casing/Perforated Tube Pipe:

Our ISO9001:2008 certificate:
We have approved ISO 9001:2008 quality management system.
We are also the audited supplier of made-in-china and approved by SGS.
Our machines have patent certificate.

Inspect of perforated tube before shipment:

1.All Dimensions of stainless steel perforated tube drainage pipe will be checked by our quality inspector, and they also can be inspected by Third Party Inspections or representative appointed by buyer.
2.Wall thickness of casing is inspected by Ultrasonic inspection method, and they also be made the Ultrasonic flaw detection
3.Do Destructive Collapse Test and collapse Strength Test before shipment.
4.If required, the casing will be made pickling and passivation treatment.
5.The whole manufacturing process can be monitored by Third Party Inspection Company and representative appointed by buyer.
6.The casing will be arranged the Pre-shipment Inspection if required.

Why choose we perforated tube Casing Screen Pipe for Well drilling?
1)World Class Quality: We provide our clients with high quality Stainless Steel Casing pipes. All products were produced according to the ASTM A312 or other required standards..
2)Third party inspection: The productive process and final products is controlled by third party test company such as BV,SGS,etc. or client's representative.
3)Non Standard Size: We can supply customer designed and engineered Casings according to our clients' requirements.
4)Quick Delivery:We can prepare stock for our regular clients to meet clients' requirement at any time.
5)Environmentally safe:Our casings have signed the file to protect the environment with our local Environmental Protection Administration.

FAQ:
Q: Are you trading company or manufacturer?
A: We are factory.

Q: How long is your delivery time?
A: Generally it is 3-10 days if the goods are in stock. or it is 7-30 days if the goods are not in stock, it is according to the real specification and quantity.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment?
A: Payment<=10,000.00 USD, 100% in advance. Payment>=10,000.00USD, 30% T/T in advance ,balance after inspection and before shipment.
B. L/C are also acceptable

Since our establishment, we have been a pioneer in the industry and a professional manufacturer engaged in the design and manufacture of Perforated Filter Tubes Manufactured with Oval Holes. We normally follow the basic principle 'Quality Initial, Prestige Supreme'. In line with the business philosophy of 'mutual benefit, small profits and high sales', our company uses the logistics channel to provide high-quality service and preferential prices for customers in various regions.

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