Water Spring Check Valve

Parameters of Water Spring Check Valve

Check valves are designed to permit water to flow in one direction and are a requirement on all submersible pump installations.

Additional information


CW602N, CW617N, H58-3


Sand blasted


1/2"-2", 1/2"-4"



Thread connection


Working pressure



Stainless steel

Core stem

Brass insert, Plastic insert




12 months

Details about Water Spring Check Valve

Water Spring Check Valve


  • Brass Check Valve Non-Return Valves
  • Size 1/2″-4″
  • Materials; H58-3 brass,CW617N,DZR
  • Plastic core with female thread
  • Forged brass with natural color
  • Pressure rated to 12 bar
  • Operating temperature: -10°C to 100°C
  • Thread connection : (G, Rc, RP) BSP
  • Non-return check valve fully made of brass with a spring mechanism to let the water flow only one way. The check valve can last a maximum pressure of 12 bar. There is a range of sizes available. Specifications:
    – Material: Brass;
    – Insert material: Brass;
    – Thread type: Female x Female;
    – Max. Static Pressure: 1,2MPa (12 bar);
    – Max. Working Temperature: +100C;
    – Gasket type: NBR (flat).

The check valve relies on the flow of the media itself and automatically opens and closes the valve flap, used to prevent the media back to the valve, also known as the water check valve, counterflow valve, and back pressure valve. The check valve is automatic, and its main role is to prevent media backflow, prevent the pump and drive motor reversal, and release container media.

inline spring loaded check valveinline spring loaded check valve

Check Valves for Water Lines: What Every Homeowner Should Know

Water lines in your home might seem like simple conduits for the liquid of life, but there’s more to them than meets the eye. At the heart of these systems are vital components like check valves designed to ensure water flows efficiently and safely. If you’ve ever wondered about the role of check valves in water lines, you’re in for a treat. This guide will dive deep into their functionality, importance, and how to maintain them.

Brass Check Valve Introduction

Fluid can only flow in one way through a brass Brass check valve. This stops fluid from flowing backward, which could lead to contamination or destruction of other elements. Check valves are self-contained and do not require any manual intervention. Most available variants contain a little spring to seal the valve, which is opened by applying medium push in the forward motion. It’s worth noting that the valve must be opened with a certain pressure level (usually called cracking pressure).

A check valve, sometimes a one-way or non-return valve, is an ingenious component. It allows fluid (in this case, water) to flow in one direction and prevents it from flowing backward. In doing so, it ensures consistent water pressure and prevents contamination.

Why Every Water Line Needs One

Imagine, after a day of heavy rainfall, your city’s drainage system is overwhelmed, and water flows backward into the clean water supply. Without a check valve, this contaminated water could end up in your tap. That’s the catastrophe check valves prevent.

Types of Check Valves

  • Swing Check Valves: These use a swinging disc to allow or prevent flow. When water flows in the right direction, it pushes the disc open. If it tries to reverse, the disc swings shut.
  • Lift Check Valves: Operate on a similar principle, but instead of swinging, they lift a disc or ball off its seat.
  • Inline Check Valves: Common in household applications, these rely on a spring mechanism that opens when water flows in the correct direction.

Materials Matter

  • Brass: Offers durability and excellent corrosion resistance.
  • Stainless Steel: Known for its longevity and robustness against harsh conditions.
  • PVC: Lightweight and cost-effective, perfect for residential uses.

The sizes of check valves for water lines;

  1. Residential Plumbing: In typical home plumbing, check valves can range from about 1/2 inch to 2 inches in diameter. These are ideal for household applications like sinks, toilets, and garden hoses.
  2. Commercial Plumbing: In commercial setups like hotels, offices, or manufacturing plants, check valves may be much larger, even up to 4 inches or more in diameter, to accommodate greater water flow.
  3. Industrial Applications: In heavy-duty industrial scenarios, check valves can be custom-built to larger sizes, potentially several feet in diameter, to handle high flow rates.
  4. Specialty Applications: Miniaturized check valves might be used for unique applications such as medical devices or specialized machinery. These could have diameters as small as a few millimeters.

The size of the check valve must be compatible with the size of the pipe it’s connecting to, ensuring a secure and leak-free fit. Always consult a plumbing professional to determine the right size for your needs.

What are the applications of Brass Check Valves? 

Check valves are often utilized for one of four main reasons in a range of applications because of how they work:

· To safeguard downstream equipment from backflow damage

· To avoid pollution as a result of reverse flow

· To avoid siphoning

· To maintain a vacuum seal

They are employed in practically every industry because of their function. Kitchens, washers, dryers, and wastewater pipes are all examples of popular domestic equipment that utilize them. 

They are utilized in industrial heaters, kilns, gas machines, pumping operations, and vacuum systems. They’re also commonly used as aquariums to check valves on freshwater and Carbon dioxide lines.

brass in line spring vertical check valve
brass in line spring vertical check valve

What is the specification of the Brass Check Valve?

Valve shape, pressure range, medium heating, and valve flow rate are all performance specifications.

When choosing a check valve, it’s critical to consider the pressure losses in the flow processing system. The flow and, as a result, pressure and flow alterations control the check valve’s performance. The intensity of the shutdown is determined by the inverse pressure drop, which occurs when downhill pressure exceeds the upstream level. This indicates that the downstream flow pushes on the closure element as the reversal pressure loss, resulting in an improved shutdown.

What factors need to consider if purchasing a check valve?

Estimating the specific system’s cost before selecting a control valve is critical. The goal is often to save money while achieving the lowest pressure loss; however, more safety equals more pressure drop related to check valves. 

To ensure that the check valve effectively safeguards the system, each system must be evaluated separately, considering the risk of water hammer, tolerable pressure drops, and the economic effects of having a check valve with an excessive water hammer safety factor taken into account.

Installation Tips

  • Positioning is Key: Check valves should be installed in a location easily accessible for maintenance.
  • Flow Direction: Always install with the flow arrow pointing in the direction of the water flow.
  • Professional Installation: While DIY is tempting, professional installation ensures optimal performance.

Maintaining Your Check Valve

  • Regular Inspection: Over time, debris can accumulate and hinder the valve’s performance. Regular inspections will ensure it remains in top condition.
  • Seal Checks: Ensure the valve’s seals remain intact to prevent leaks or malfunctions.
  • Professional Servicing: Every few years, have a professional plumber inspect and service the valve, especially if you notice any issues.

Innovations in Check Valves

Modern check valves are not just about function but enhanced performance. Today, we’re seeing valves with advanced materials that last longer and are even equipped with sensors that can alert homeowners of malfunctions.

Why Choose Us? 

When you purchase anything, you expect it to last a long time. This idea is applied to our high-pressure, elevated valves, developed and engineered to last a lifetime. They are just the market’s most durable, inline fixable valves with the shortest lifespan expense. 

Our products meet industry requirements as a pioneer in heavy service and a specialist in harsh condition applications.

Check valves might seem like minor players in your home’s plumbing scheme, but their role is pivotal. By ensuring water flows in the right direction, they maintain the integrity and safety of your water supply. Investing in a good-quality check valve and maintaining it well will guarantee a steady and uncontaminated water flow in your home.

water pressure gauge

Metals Vavles Works on Plumbing System

Plumberstar valve fabricator in China. Our main parts for heating pipelines and intelligent water control can supply you with a one-stop basket solution to get your ideas and demands. From design to packaging and logistics are our duty—brass valves and fittings applied in-house, in industry, and commercial construction, in residential. There are related to water pipe control solution, and we have rich experience for outdoor frostproof hydrant and pex heating water manifold indoor.

The Top Standard Valves

Plumberstar, founded in 2006, offers high-quality, customizable residential valves and pipe fittings for plumbing and heating systems, including metal valves, brass products, bibcocks, and stainless steel accessories.
Woman's hand closes the valve. Saving Water Consumption Concept

Plumberstar offers brass and stainless steel 304 valves, as well as HPVC and cast iron plumbing parts. Available in sizes ranging from 1/4 inch to 4 inches with BSP(G) and NPT threads. Products include shut-off needle valves, heating floor manifolds with 1-inch gauges and flowmeters, brass nipples, elbows, extensions, compression fittings, and adapters. Custom manufacturing plumbing products is also available.

How to benefit You

Plumberstar delivers reliable, high-quality plumbing solutions with competitive pricing, extensive customization, and free pressure testing. Our ISO 9001 certified products ensure safety, efficiency, and durability, meeting international standards for residential and commercial needs.

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Temperature Mixing Valve

Mixing water valve automatic ensure temperature and water pressure stable. It is suitable for household hot water devices equipped and floor heating, so the 3-way valve meets requirements of temperature range and the water flow

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PEX Heating Manifold

Plumberstar radiant pex manifolds are usual for residential water distribution in a household, and it's top rated in the home building industry. Manifold plumbing systems control hot and cold water that feeds flexible PEX supply lines to individual fixtures.

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Y-filter Strainer Drain Valve

Plumberstar Y filter strainer Keeps Working, and dirty Out Strainer screen catches debris and sediment to reduce maintenance. Protect your water plumbing. Y Type Strainer works in conjunction with your backflow preventer and regulators.

water tanker safety valve

Safety Water Solution

Plumberstar works in residential, irrigation, and commercial application. The relief safety valves are used in various applications, such as water heaters, air compressors, its automatic release of the excess pressure or vacuum from a heating system.

Advantages of Plumberstar

Plumberstar products design based on simple structure aim to time-saving installation for consumers and aim to save the cost of customers for building construction.

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We boast 18 years of expertise in water and gas projects and long-term partnerships with top global clients.

We offer competitive pricing, tailored solutions, and flexible solutions. Quality is our cornerstone. We conduct three random inspections and a final QC check for each project, with detailed reports for clients and a 48-hour emergency response system.

Customize-Design Brass Copper Fitting

Copper Pipe fitting 1/2 inch 90-degree Elbow, nipple, bush, and reducer connects PEX Pipe in water distribution and hydronic heating systems.
Low-cost solution to connect copper Pipe Tubing, stainless steel insert, and adapter. The connection system is perfect for your next commercial or homeowner plumbing project.

Advantages for distributer, wholesaler, Supermarket and Trading

Plumberstar is looking for long-time cooperation with partners, our advantage will benefit each other, and growing together, our extra service including design, new tooling, discount and quality tracing system.

★ Moderate Pricing – Plumberstar can provide various projects with different economic basket services. Water control project drawing design and artwork works are free. 

MOQ and Delivery – Lower MOQ even reaches 100 units and sampling time within 15 working days, and the leading time is 30 working days of mass production,

Non-Disclosure Agreement – Plumberstar will not provide your competitors with the same valves and manifolds. And help you to get more market shares.

Quality and Service–Our defect rate reached 0.459% in the last two years from customers feedback, and the Inspection report can provide you with each order

working of a gas shut off valves

Discount and Quantity– Heavy quantity can increase production capacity with effectiveness. And the accessories and spare parts purchased with competitive cost of valves.

Plumberstar Extra Service

Our aim is not only to provide valves but we help customers to design products,design artwork,valve proposal, book shipment,Installation tutorial

Design Valves For House

Valve Project Designing

We are free design your valves according to your inquiry of your plumbing system,no extra cost.

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Plumbing Control Proposal

We can help you choose valves and heating manifold, and advice in house application

Fix ball Valve

Fluid Control Installation

We can provide an installation guide and tutorial about valves and underfloor heating manifold

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Shippment Service Solution

We help customers to book a container, documents preparation, and clearance, even to warehouse

Frequently Asked Questions

Here are typical questions by customers asked with usual, please feel free contact us if any further confused.

Brass valves have many different types, such as ball valves, garden tap, check valve, strainer, angle valve, gate valve, foot valve, and drain valve. The radiator valve and thermostatic mixing valve are works for water temperature. All of these valves are work for water plumbing systems, plumbing repair, and installation. So have to let water shut-off and shut-on. Some heating systems are related to hot water and cold water mixing for temperature control and stability. Our intelligent valves are functional. There are applications in commercial, residential, and industrial areas.

Underfloor heating radiant pex manifolds are usual for residential water distribution in a household, and it's top-rated in the home building industry. Manifold plumbing systems control hot and cold water that feeds flexible PEX supply lines to individual fixtures. Then water temperature is warm and stable in each room. Meanwhile, the heating accessories-flow meter gauge will monitor water and temperature in each room.

The motorized ball valve works automatically open and closed; they work with 220v-230v AC and 24v DC; they are applications in the heating system, air conditioner,3D printer, and others. The solenoid valve is with similar features.

Would you please submit the form at the bottom of the page or send an email directly:info@plumberstar.com? My WhatsApp: +86 15968648802. Can you send us pressure demands, size package, and quantity if available?

It's able to provide free samples for your evaluation with 15 working days about.

Our MOQ is significantly lower from 100-5000 pcs are available. It depends on different items.
We can fabricate your specified requirements.

It's about 35 days if with regular proucts; New tooling and samples will take 15-20 days, Normal samples will take 7 days.

It means that you need to check the plumbing system at first, then realize your requirements, and get out different valves with different applications and functional with controlling; of course, may be no need to use brass valves due to the high cost. You can use plastic, iron, zinc alloy, and aluminum raw materials instead of brass, but brass and stainless steel are reliable with 3 years warranty. If you don't know how to choose, please call us or email us.

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Why Choose Plumberstar?

Choose Plumberstar for exceptional, customizable plumbing products with over 18+ years of experience. We guarantee competitive pricing, strict quality control, ISO 9001 certification, and dependable global delivery to ensure your projects meet top standards.

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