High Quality Brass Check Valves, Brass Valve , Bronze Ball Valve Suppliers in China

Home > Products > Brass Check Valves > linbo Guten top OEM 1/2 3/4 1 Inch Forged Brass Water Meter Swing Stop Check Valve

linbo Guten top OEM 1/2 3/4 1 Inch Forged Brass Water Meter Swing Stop Check Valve

Product Description

Detailed Images
Item:
Swing check valve
Size:
1-1/4"
Connection Type:
NPT or BSP
Max. Temp.: 
180 Degrees F
Max. Water Pressure: 
200 psi
Mounting Position:
Vertical or Horizontal
Material of Construction:
Brass
Seat Material:
Brass
Cracking Pressure:
0.75 to 1 psi
Product Description

About Check Valves

In plumbing applications, check valve is often used to prevent the cross-contamination of water due to back pressure or back-siphonage, often caused by drop in pressure on the supply side or by draining the system.


In heating applications, check valve acts as a one-way valve to prevent mixing of the supply and return water, especially in systems with radiant floors and baseboard/panel radiators. 


Check Valve is an in-line, one-way valve which purpose is to prevent the backflow of water due to back pressure, gravity flow of thermal siphoning. Lead-free check valves are suited for both potable water plumbing and heating applications. Regular Brass Check Valves can be used for non-potable water applications only. Available in swing and spring-loaded types.

Swing type check valve

Swing type check valve (also commonly called "swing check") has an internal brass flapper suspended on a shaft. When looking at the picture of the swing check, the shaft end is visible (brass hexagonal bolt head). In a horizontal position (as shown on the product picture), the flapper is in vertical position and closes the opening. When water starts to flow from the inlet, it pushes against the flapper and, with no resistance, opens it. It water is pushed backwards, the flapper return to the original positions, sealing the opening. Because of the nature of the design of the swing check valves, they should only be used on horizontal pipe runs, as level as possible.

Spring loaded check valves have a brass flapper with rubber gasket, which is secured on the shaft/stem located at the center of the valve and running parallel with the water flow. A steel spring inside the valve pushes the flapper against the opening with small force, ensuring that no water is flowing due to gravity. When water begins to flow, it pushes against the flapper and opens it with minimal resistance. In case of a backflow, the spring quickly pushes the flapper back in place, which immediately stops the flow. Unlike swing type, spring check valves can be installed in any position - horizontal, vertical or anywhere in between.

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Packing & Delivery

Packing

1.Inner packaging

For Brass Fitting ,we used nylon bags do inner packaging , Nylon bag can reduce oxidation occurred , To prevent rust And keep the brass luster.

2.Retail packaging

We put 50 or 100 pcs of brass ball valve in one carton box . Ensure that a sufficient quantity ,and protect goods in transfer.

3.Transfer packaging

For export we put goods in Moisture-proof packaging ,and put wooden box out side . Ensure that the product in transit in good condition.

4.custom packaging

We can According to your requirements for product packaging ,we can print your logo on carton or goods. to help your Smooth business. 

Shipping

1.Sample shipping

For sample order we usually transfer by express,like FedEX UPS TNT and China EMS . usually you can get samples in one week . and if you need ,we can provide 1-3 pcs sampes by free.

2.Final order shipping

For final order . we can do air transfer and sea shipping . our factory in Yuhuan are close to airport and seaport(Ningbo and Shanghai) . usually transfer 1-5 ton goods to port cost 200 $ . 

Our Company
Certifications
FAQ

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: What is your MOQ ?

A: Usually our MOQ is 3,000pcs. But we accept lower quantity for your trial order. Please feel free to tell us how many pieces you need, we will calculate the cost correspondingly, hoping you can place large orders after checking quality of our products and know our service.

Q: How long is the production lead time?

It always takes about 30 days for MOQ. We have large production capacity, which can ensure fast delivery time even for bulk.

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<=10000USD, 100% in advance. Payment>=10000USD, 30% T/T in advance ,balance before shippment.
paypal,western & union,money gram are accepted.

Contact us if you need more details on Swing Stop Check Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Brass Check Valve、Forged Brass Check Check. If these products fail to match your need, please contact us and we would like to provide relevant information.
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