300X Slowly closed check valve
Purpose
Used for the pump outlet in high building or other water supply systems to prevent the medium from backflow and reduce water hammer so as to leave a safe and peaceful effect.
Features
Able to prevent both water hammer and water shock from being produced so as to get the slow-closing and silencing effect.It is a check valve able to adjust and control the open-close speed and,at the time for the pump to start or stop working,can adjust the open-close speed to its best on the site.
Principle
When the pump stops,the medium flows back,the pressure in the upper cavity of the valve is larger than that in the lower one,the disc falls off to close.Control of the speed for the back water to enter the upper cavity of the diaphragm can adjust the speed for the valve to close so as to get the slow closing effect.
Executive standard
Size of flange:GB/T 17241.6
Test and inspection:GB/T 13927
Our service
1. Manufacturing welcome: Product, Package...
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. after sending, we will track the products for you once every two days, until you get the products. When you got the
goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer
the solve way for you.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
before you pay the balance.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q4. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from.
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