SS Wedge Wire Screen Sand Filter Nozzle for Water Treatment

SS wedge wire screen sand filter nozzle for water treatment is composed of V-profile wire stainless steel which is spirally wrapped in certain equal slots. To maintain the slot size around inside and add extra strength are mounted. It has a cover for both ends of the nozzle. Each wire and rod are made by spot welding. and fitting pipe is adjusted according to the thickness of the set bottom plate. The nozzle is completed by welding fitting pipe to a cover of down end after setting screw according to the type of nut.

Feature

1. Continuous slot design provides a large circulation area

2. The standard nozzle is 2in/51mm diameter and can be attached to the plate either with threaded end fittings or "L" blots.

3. Standard slot opening is typically range between 0.006" (0.15mm), and 0.020in./0.50mm wide suitable for 40 to 50 mesh size media, Other slot sizes are also available.

4. The wedge wire screen is highly resistant to plugging.

5. Choice of either 3/4" NPT or 1" NPT fittings are available from stock. Other styles, such as tee-bolt mountings, and drop tubes are readily available.

6. Unaffected by temperature, corrosion-resistant, aging resistant, long life span, easy change, safety, and environmentally friendly. 

FAQ

Question1. What Are The Tolerances On The Screen Slot?

Answer 1. For the slot apertures in the range of:

0.0025mm to 1.0mm the mean slot will be within 0.025mm with a standard deviation of 0.025mm

≥1.0mm to 2.5mm the mean slot will be within 0.05mm with a standard deviation of 0.05mm

≥2.5mm the mean slot will be within 0.075 with a standard deviation of 0.075mm.

Question 2. What is the standard size?

Answer 2.  Due to the near-infinite possible combinations of slot size, wire profile, wire length, rod profile and spacing, rod length, and alloy requirements for the immense variety of applications, wedge wire screens are all custom manufactured. There are no 'standard' sizes, sorry.

Question 3. What Is The Open Area?

Answer 3. Wedge wire screen open area ratio (OA) is calculated using the following formula (multiply by 100 for percent):

Question 3. How Much Does It Cost?

Answer 3. Due to the near-infinite possible combinations of slot size, wire profile, wire length, rod profile and spacing, rod length, and alloy requirements for the immense variety of applications, wedge wire screens are all custom manufactured. Therefore, cost per unit varies widely and must be calculated on a per-job basis.

Question 4. What Is The Standard Slot Size? What size could you Supply?

Answer4.  There are very few applications for which the slot size is standard. 

Ion exchange applications (underdrain laterals, media traps) commonly have slots in the range of 0.15mm to 0.20mm. Intake screens for fish protection in Canada generally require 2.54mm slots; in USA 3.175mm slots (larger slots may be allowed, or smaller slots required, by local authorities). Otherwise, the rule of thumb for most applications is to size the slot at half the size of the smallest media particles, the exception being sieve bends where the slot is sized about twice the desired separation size. The screen can be manufactured with any slot from 0.025mm (with most wire profiles) up to about 10mm in 0.025mm increments; larger slots may be available constrained by wire profile and tooling.

Question5: I don't know what specifications I need.

Answer 5:You just need to tell us where you want to use it, we will give you the most professional advice, and send you a sample test.

Question 6. How to purchase your Screen Filters? What's the purchase process?

Answer6. Put forward purchase requirements--provide product specifications--design product drawings--provide quotations--custom production products--delivery--receive

Question 7. What's the best delivery lead time

Answer 7. Usually, the delivery time is 15-30 days. 

but if the clients' order is urgent, the delivery time will be shorter, 7-10 days. 

If the screen is at stock, the delivery time will be 3-7 days.

If the product is much complex and the purchased quantity is large, the delivery time will be about 30-40 days.

Question 8. How about the payment term:

Answer 8. T/T, L/C, Western Union are possible.

Question 9: Min order?

Answer9: Any quantity is ok.

A sufficient amount of quantity you will get a surprising price.

Question 10: After-sale service?

Answer 10: If you are working with us for the first time, you may have questions about product quality, when buying in large quantities, you will definitely worry about product quality problems. Don't worry, we have a sound quality management system, and if there is a quality problem with the goods you receive, you only need to provide a batch of the product, we will exchange the goods for you in the first time.