Brass Gate Valves

Reduced Bore Brass Gate Valve

Economical model, water saving design, leakage test for each valve
ART.N10131003
Reduced Bore Brass Gate Valve
Reduced Bore Brass Gate Valve

Description

Reviews

Reduced Bore Brass Gate Valve N10131003 is an economical model, light is weight and cost saving, suitable for water, oil, direct flow direction of brass gate valve reduces the water and provides bigger flow rate, long stem design make opening and closing easier. The standard bore size design allows better flow to reduce cavitation and pressure drop. 100% leakage test for each brass gate valve ensures reliable quality. Welcome to contact to get latest brass gate valve price list.

Parameters:
• Sizes: 1/2" to 2" (DN15 to DN50)
• Working pressure: PN16  / 200WOG
• Working temperature: -10 to 120℃
• Standard bore design
• Sandblasted and rough valve body
• Cast iron hand-wheel
• BSP or NPT threads available
• Customized production acceptable
• Materials: CW617N, HPb57-3, C37700, DZR


Features:
• 100% leakage test for each valve
• Anti-blow-out stem design
• Suitable for a full range of liquids
• Easy and swift to open and close
• Flow can go either direction
Parts Material
Body Brass
Cap Brass
Stem Brass
Seal NBR or Silicon
Disc Brass
Hand-wheel Cast Iron
Handle nutBrass

What is reduced bore brass gate valve

Reduced bore brass gate valves are designed with smaller bore size, and economical for costs and water saving. The utility model has the advantages of small fluid resistance, small opening and closing torque, and unlimited medium flow direction. 
Applications of reduced bore brass gate valves                                                                                
Reduced bore brass gate valves have a wide application range, normally work as house main flow control  linked with water meter, can be used different kinds of pipeline systems, for home and domestic water and gas supply, heating system, gardening and irrigation. We have diverse models and designs to meet these applications in a professional manner.

 How to select reduced bore brass gate valves

Thread types differ from markets and applications: BSP threads for Europe and NPT threads for North America, also other metric threads, which you must confirm before buying brass gate valves. We currently work with HPb57-3 brass gate valves for most customers in Europe and Asia, CW617N brass gate valves for Europe, C377700 and lead free brass for North America. Cast iron handle and steel handle are available, the cast iron handle is gravity casted with better quality and longer durability; The steel hand-wheel is economical design and saving costs.
How to install reduced bore brass gate valves                                                            
1. Before installing brass gate valve, clean and remove any objects from the pipes (in particular bits of sealing and metal), which could obstruct and block the valves.
2. Ensure that both connecting pipes either side of the valve (upstream and downstream) are aligned (if they are not the brass gate valves may not work correctly).
3. Make sure that the two sections of the pipe (upstream and downstream) match, the brass gate valve will not absorb any gaps. Any distortions in the pipes may affect the tightness of the connection, the working of the valve and can even cause a rupture.
Chemical compositions for reduced bore brass gate valves                                       
1. China/Global Market
HPb57-3, HPb58-3, HPb59-1, HPb59-3 are most common materials used for China brass gate valves, which are acceptable for most countries in the world, except for those customers have special requirements.

HPb57-3, also called China Normal brass, a variant of CW614N brass, is a local industry standard, with little Fe contents in composition, and lower costs than CW614N. It’s widely used as a standardized material in China and accepted by most global markets and customers.

HPb58-3, is a variant of CW617N brass and commonly used for brass gate valves in China local market.

HPb59-1, has less Fe, Pb and higher price costs, it’s more used for high-quality products or market, such as brass fittings for USA market.

2. European Market
CW614N and CW617N brass materials are widely used for European brass gate valves.

CW617N brass has better physical property to stand higher working pressure and temperature, more importantly the Pb percentage share is less than 2.5% and applicable for drinking water systems, good for environment and people’s health.

CW614N Brass is also popularly used because of similar compositions and lower costs, suitable for those applications without much environmental requirements.

3. USA Market
C46500 and C377700 are most widely used materials for USA brass gate valves.

As a requirement of AB1953 regulations, all the brass gate valve parts which contact the water shall have Pb content less than 0.25%, also called lead-free brass or no-lead brass, all the brass water valves for USA market, such as ball valves, brass gate valves, brass check valves, brass angle valves, have been compulsory to use lead free brass.

For those brass valves not for water use, such as brass radiator valves, heating valves, C377700, or China standard HPb59-1 brass materials are workable.
Surface treatments of reduced bore brass gate valves                                                
Surface treatments provide good protection to brass gate valves:
Rough color is brass gate valve body sandblasted and without plating.
Electroplating (nickel-plating and chrome-plating) can enhance the corrosion resistance of brass gate valves, increase hardness, prevent abrasion, improve conductivity, smoothness, heat resistance.
How we produce reduced bore brass gate valves                                                          
1. Brass raw materials are bought from local suppliers in forms of brass bars.
2. Brass bars are cut into smaller pieces with different sizes according to order requirements, heated with natural gas.
3. The heated brass bars are forged by forging machines, Out-comings are semi-finished rough brass gate valve bodies.
4. The rough brass gate valve bodies are trimmed and cut off unnecessary parts.
5. The rough brass gate valve bodies are washed with sanding machines, to clean the dirty and oils during production.
6. The rough brass bodies are machined by CNC machinery for threads and dimensions.
7. The machined  brass gate valve bodies are nickel- or chrome-plated.
8. The brass valves are ready for delivery after final finished goods quality inspection.
How we pack reduced bore brass gate valves                                                                
Brass gate valve packing is very important for safe transport and brand appearance.
We pack brass gate valves in small inner boxes, then put into outer cartons, finally load in wooden pallets.
It will protect the goods well and can avoid damages and wet.
We also pack as per customers' OEM designs.
How we test reduced bore brass gate valves                                                                  
Opening and closing speed
The opening and closing speed is the use of reduced bore brass gate valves. Some working conditions have special requirements for the opening and closing speed. If some require rapid opening or closing to prevent accidents, some require slow closing to prevent water hammer, etc., which is the choice of yellow The type of copper gate valve should be considered. This refers to the sensitivity of the reduced bore  brass gate valve in response to changes in media parameters.
Service life durability
It represents the durability of reduced bore brass gate valves, is an important performance index of copper valves, and has great economic significance. It is usually expressed in terms of the number of openings and closings that can guarantee the sealing requirements, and it can also be expressed in terms of use time.
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