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Nominal Diameter: DN15-DN50, can be customized
Nominal Pressure: 1.6Mpa
Working Medium: Water, Non-causticity liquid, Saturated steam
Working Temperature: -20°C≤T≤100°C
Thread: ISO228/1, BSP, NPT, etc
SOLID manufactures brass check valves for reliable backflow prevention in water supply, HVAC, pump, irrigation, oil, gas, air and general fluid-control systems. Our brass check valves are available in swing and spring-loaded designs, with multiple brass grades, thread standards, sealing materials and surface finishes for different piping systems and export markets.
Our standard brass valve manufacturing range covers 1/2" to 4" (DN15–DN100), working pressures of 1.6–2.0 MPa, and operating temperatures from -20°C to +120°C. BSP, BSPT, NPT and ISO 228 thread options are available.
| Parameter | Available Specification |
|---|---|
| Product | Brass Check Valve / Brass Non-Return Valve |
| Valve Type | Swing Check Valve / Spring Check Valve |
| Size Range | 1/2"–4" (DN15–DN100) |
| Working Pressure | 1.6–2.0 MPa |
| Working Temperature | -20°C to +120°C; actual limit depends on seal material and operating medium |
| Body Material | Brass |
| Brass Grades | CW617N / CW614N / HPb57-3 / HPb59-1 (H59) / DZR Brass / Lead-Free Brass |
| Disc Options | Brass / Engineered Polymer, depending on valve design |
| Spring Material | Stainless Steel for spring-loaded configurations |
| Seal Options | NBR / EPDM / PTFE |
| Thread Options | BSP / BSPT / NPT / ISO 228 |
| Connection | Female Threaded; customized connection requirements can be reviewed |
| Surface Finish | Natural Brass / Nickel-Plated / Chrome-Plated |
| Applicable Media | Water / Oil / Gas / Air / Compatible Non-Corrosive Fluids |
| MOQ | No fixed MOQ |
| Typical Lead Time | 15–35 days |
| Standard Packaging | Export Cartons + Pallets |
| Custom Packaging | OEM / Private-Label Packaging Available |
| Selection Factor | Brass Swing Check Valve | Brass Spring Check Valve |
|---|---|---|
| Closing Method | Hinged disc closes when flow reverses | Spring-loaded disc closes when forward pressure decreases |
| Closing Response | Relatively gradual | Faster closing response |
| Flow Resistance | Suitable where low flow restriction is preferred | Spring force creates additional resistance that should be considered during selection |
| Installation | Installation orientation should be confirmed according to valve structure | Suitable configurations are available for horizontal or vertical piping |
| Typical Applications | Water Supply / Plumbing / Irrigation / General Fluid Lines | Pump Discharge / HVAC / Compact Piping / Systems Requiring Faster Closing |
| Important Selection Data | Flow Rate / Installation Position / Backflow Condition | Cracking Pressure / Spring Material / Installation Direction / Pressure Loss |
SOLID offers different brass grades so the valve body can be matched to water quality, target market, regulatory requirements and project specifications.
| Brass Grade | Main Characteristics | Selection Direction |
|---|---|---|
| CW617N | Good forgeability, mechanical performance and machinability | General plumbing and forged brass valve applications |
| CW614N | Suitable for precision machining | Machined valve bodies and components |
| HPb57-3 | General-purpose brass option | Water, plumbing and general fluid-control applications |
| HPb59-1 / H59 | Good machinability and general mechanical properties | General brass valve applications |
| DZR Brass | Improved resistance to dezincification | Recommended where water conditions create a higher dezincification risk |
| Lead-Free Brass | Low-lead material option | Projects and markets with low-lead or potable-water material requirements |
Thread standard must be confirmed before ordering. Two valves with the same nominal size may not be interchangeable when different thread standards are used.
| Thread Option | Thread Type / Use |
|---|---|
| BSP | Commonly used in British and international plumbing systems |
| BSPT | Tapered pipe thread for BSPT-based piping systems |
| NPT | Commonly specified for North American and NPT-based piping systems |
| ISO 228 | Parallel pipe thread specification commonly used for international plumbing components |
| Seal Material | Main Characteristic | Typical Selection Direction |
|---|---|---|
| EPDM | Good performance in many water applications | Water Supply / HVAC Water / General Plumbing |
| NBR | Good oil resistance | Oil and compatible industrial-fluid applications |
| PTFE | Broad chemical compatibility and useful temperature resistance | Applications requiring different chemical or temperature performance |
| Application | Main Function | Recommended Selection Direction |
|---|---|---|
| Water Supply & Plumbing | Prevent reverse water flow and protect upstream equipment | Swing or spring type according to installation and closing requirements |
| Pump Discharge | Prevent reverse flow after pump shutdown | Spring-loaded designs can be considered where faster closing is required |
| HVAC | Maintain one-way circulation in heating and cooling loops | Select according to water temperature, pressure and installation direction |
| Irrigation | Prevent reverse flow in irrigation and water-distribution lines | Choose according to water quality and system pressure |
| Oil Lines | Maintain one-way flow | NBR or another compatible sealing material should be selected according to oil type |
| Gas & Air Systems | Prevent reverse gas or compressed-air flow | Select valve and seal according to gas type and leakage requirements |
| Information Required | Available |
|---|---|
| Valve Type | Swing / Spring |
| Size | 1/2"–4" / DN15–DN100 |
| Working Pressure | 1.6–2.0 MPa standard range |
| Temperature | -20°C to +120°C standard range |
| Medium | Water / Oil / Gas / Air / Other |
| Brass Grade | CW617N / CW614N / HPb57-3 / HPb59-1 / DZR / Lead-Free |
| Thread | BSP / BSPT / NPT / ISO 228 |
| Seal | EPDM / NBR / PTFE |
| Installation Direction | Horizontal / Vertical |
| OEM Requirement | Logo / Marking / Packaging / Drawing |
| Selection Factor | Brass Check Valve | Stainless Steel Check Valve |
|---|---|---|
| General Water Service | Suitable for many plumbing, HVAC and water applications | Also suitable, particularly where higher corrosion resistance is required |
| Material Cost | Generally more economical | Generally higher material cost |
| Corrosion Resistance | Depends on brass grade and water/fluid conditions | Often preferred for more demanding corrosive environments, depending on stainless grade |
| Potable Water | DZR or lead-free brass can be selected where required | Depends on stainless grade and applicable project standard |
| Oil / Industrial Fluid | Suitable where brass and seal materials are compatible with the medium | Often selected for more demanding industrial-fluid conditions |
| Pressure / Temperature | Suitable within the specified brass valve operating range | Consider where system conditions exceed the practical range of the brass configuration |
| Typical Selection | Plumbing / HVAC / Water / Irrigation / General Fluid Control | Industrial / Corrosive / Higher-Demand Applications |
| Custom Item | Available Options |
|---|---|
| Valve Structure | Swing / Spring-Loaded |
| Brass Grade | CW617N / CW614N / HPb57-3 / HPb59-1 / DZR / Lead-Free |
| Thread | BSP / BSPT / NPT / ISO 228 |
| Seal | EPDM / NBR / PTFE |
| Surface Finish | Natural Brass / Nickel-Plated / Chrome-Plated |
| Body Marking | Customized marking available |
| Logo | OEM logo available |
| Packaging | Standard Export / OEM / Private-Label Packaging |
| Drawing-Based Production | Available according to product requirements |
| Sample-Based Production | Available according to product requirements |
For broader customized brass valve requirements, seeCustom-Made Brass Valve for Plumbing Systems.
| Purchasing Item | SOLID Supply Information |
|---|---|
| MOQ | No fixed MOQ. 1 pics |
| Sample | Available for evaluation and testing; availability and freight arrangement depend on the requested configuration |
| Typical Lead Time | Approximately 15–35 days |
| Standard Packaging | Export Cartons + Pallets |
| Additional Export Protection | Wooden cases can be used where required |
| OEM Packaging | Available |
Our standard brass valve manufacturing range covers 1/2" to 4" (DN15–DN100). Specify the required structure, thread and operating conditions when requesting a quotation.
The standard brass valve range covers 1.6–2.0 MPa. The applicable rating for a specific valve depends on its structure, size, material and sealing configuration.
Yes. BSP, BSPT, NPT and ISO 228 thread configurations are available. Specify the thread standard together with nominal size when ordering.
A swing check valve uses a hinged disc and is commonly selected for general water and plumbing systems. A spring check valve uses spring force for faster closing and can be suitable for pump discharge, HVAC and compact piping. Final selection should consider pressure loss, installation orientation and closing response.
Yes. Lead-free brass and DZR brass are available in addition to conventional brass grades. Specify the target market and required compliance standard with the RFQ.
EPDM is commonly selected for water applications, NBR for compatible oil applications, and PTFE where broader chemical or temperature compatibility is required. Final selection depends on the actual medium and operating conditions.
It depends on valve structure. Suitable spring-loaded configurations can be selected for vertical installation. Always provide the intended installation direction before ordering.
Solid Valve is a trusted Brass Check Valve Manufacturer providing reliable Industrial Brass Check Valve and Brass Non Return Valve solutions. Contact us today to get pricing and technical support from a professional threaded brass check valve supplier and experienced brass check valve manufacturer china.
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Product Dimensions:
| Technical Standard | |
| Body | CW614N, CuZn39Pb3, CW617N, CuZn40Pb2, DZR,as per request |
| Nominal Diameter | DN15-DN50, can be customized |
| Nominal Pressure | 1.6Mpa |
| Working Medium | Water, Non-causticity liquid, Saturated steam |
| Working Temperature | -20°C≤T≤100°C |
| Thread | ISO228/1, BSP, NPT, etc |
FAQ
1. Can I get free samples?
A: Yes, we can provide you the free samples, but you need to bear their own delivery costs.
2. Can I request to change the form of packaging and transportation?
A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.
3. Can I request to advance the shipment?
A: It should be depends on whether there is sufficient inventory in our warehouse.
4. Can I have my own Logo on the product?
A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.
5. Can you produce the products according to my own drawings?
A: Yes, we can produce the products according to your drawings that will be most satisfy you.
6. What's your terms of payment?
A: T/T, L/C , Alibaba Trade Assurance available, full protection for your orders.
7.Do you accept custom design on size?
A: Yes, if the size is reasonable
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