China Custom Stainless Steel Check Valve Manufacturers Suppliers - Wholesale Service

Your Professional Stainless Steel Check Valve Supplier！

Zhuji Roundphi Fitting Company(Using export and import company name Zhuji Roundphi Network Technology Co., Ltd.). is a professional supplier and manufacturer of misting nozzles, stainless steel fittings, brass fittings, misting tubes for humidification/cooling/dust control system, etc. Our company also could do OEM of machined products for customers.

Double Female One Way Check Valve
#304 Stainless Steel One Way Check Valve
Double Male Straight Check Valve
#304 Stainless Steel Check Valve
3 8 Stainless Steel Check Valve
The Stainless steel no return valve with screw compression tube connector is designed to stand pressure 100 psi to 1500 psi in the misting system, usually made of #304 stainless steel material.
Stainless Steel One Way Check Valve
Chinese supply high quality three-ways ball valve with screw compression tube connector is designed to stand pressure 100 psi to 1500 psi in the misting system, working temperature is -10℃-70℃
Stainless Steel Non Return Valves
Customized high quality cut-off/stop valve with is designed to stand pressure 500 psi to 2000 psi in industrial area,like oil/chemical area, working temperature is -10℃-70℃.
Stainless Steel Shut Off Valves
Chinese supply high quality three-ways ball valve with screw compression tube connector is designed to stand pressure 100 psi to 1500 psi in the misting system, working temperature is -10℃-70℃

Why Choose Us

Advanced Equipment

Our company own 7 sets of CNC PRECISION AUTOMATIC LATHES as our main machines to produce various precise high-precision products, 10 sets of AUTO CNC LATHES to produce fittings, including stainless steel screw fittings, welding fittings and brass slip lock fittings. 5 sets of SEMI-AUTOMATIC LATHE to do the material cutting job.

Quality Assurance

Our nozzle series are 100% testing with spray effect before shipping to customers, we believe that good products will finally win customers!

OEM/ODM Service

Our company can provide OEM services for machined products to customers. multifunctional product is enough to leave a deep impression.

Stainless Steel Check Valve - Overview

A stainless steel check valve is a type of valve that allows fluid to flow in only one direction and prevents backflow. They are commonly used in piping systems to protect equipment, ensure unidirectional flow, and maintain system integrity. These valves are typically made from 304 or 316 stainless steel, offering excellent corrosion resistance and durability.

Product Specification

We provide the following product specifications：

Weight	0.4 lb
Break Quantity	1
Optional Package/Box Quantity	1
Saturated Steam Pressure	125 PSI
Size	1/2"
Material	316 Stainless Steel
Female Thread	NPT
Temperature Range	10°F to 450°F (-12°C to 232°C)
Pressure Rating	800 PSI WOG .5 PSI cracking

Product features

01/

More corrosion-resistant: Stainless steel is more corrosion-resistant than brass or plastic check valves. Stainless steel 316 has molybdenum, making it more corrosion-resistant than stainless steel 304.

02/

Durable: Stainless steel check valves are highly durable, reducing the need for constant maintenance and replacements.

03/

Suitable for very high pressures (up to 400 bar or 500 psi) and temperatures: For example, a 1/4 inch brass check valve might have a pressure rating of 16 bar (232 psi), while a stainless steel check valve of the same size might have a pressure rating of 400 bar (5800 psi).

04/

A broader range of applications: Stainless steel check valves suit traditional plumbing systems and industrial or commercial settings. The increasing cost of no-lead brass, driven by regulatory changes, has made stainless steel an attractive alternative for various fluid control needs.

Applications of Stainless Steel Check Valve

Nuclear Power Plants:

Maintaining the safety and integrity of cooling systems and preventing contamination.

Pharmaceutical Manufacturing:

Upholding the strictest hygiene standards in drug production.

Aerospace Industry:

Ensuring precise and controlled fuel and hydraulic fluid flow in aircraft systems.

Chemical Processing:

Safeguarding against the backflow of toxic chemicals and protecting sensitive equipment.

Customization Process

Requirement Discussion:

Design Proposal:

Our professional team will develop a design proposal and provide a quotation based on your requirements.

Sample Production:

We produce samples according to the design proposal and conduct rigorous testing.

Mass Production:

Upon your approval, we commence mass production to ensure timely delivery and consistent quality.

After-Sales Service:

We offer ongoing technical support and service to ensure the long-term stable operation of our products.

Package & Delivery

1. Package: Standard export package
2. Delivery: By air express, by sea

productcate-1-1

FAQ

Q: What are the three different types of check valves?

A: Check valves are unidirectional valves that provide unobstructed flow in one direction as long as flow pressure remains constant and protect the piping system against reverse flow. The three main types of check valves we offer are ball, piston, and stop check valves.

Q: Should I use a single or double check valve?

A: Single check valves provide a good level of protection but they can be doubled in settings where it is essential to prevent contamination through backflow - for example, in drinking water pipes. The additional valve creates a stronger seal and can also act as an emergency backup if the first seal fails.

Q: What are the rules for check valves?

A: As a general rule of thumb, valves of any sort should be located in a straight run of ten to fifteen pipe diameters in total length. There should be five diameters of straight pipe upstream, and five to ten diameters downstream of where a valve is to be installed.

Q: Should a check valve be on suction or discharge?

A: Discharge side Check valves are normally on the discharge side of pumps, and foot valves are on the intake of pumps. If a single check or foot valve is a good thing, one would think multiple check valves would be better. This is not necessarily the case. Several problems can arise from having multiple check valves in the system.

Q: What is the primary concern when installing a check valve?

A: Positioning: Pay close attention to where in the piping you install the valve. Not all check valves will work in a vertical piping run. It also includes ensuring that the valve is at least five pipe diameters away from elbows, tees, fittings or other valves which can cause turbulence.

Q: Are you manufacturer or trading company?

A: We are manufacturer.

Q: What's your best delivery time?

A: Within 15-30 days.

Q: What is the quality control of your product?

A: Follow strictly quality control measures for implementation,

Q: Will your company provide free sample?

A: It depends on which sort of item you want to get. Some can be provided free of charge, however, the client shall assume the shipping fees himself.

Q: Is OEM open to clients?

A: Yes, we can provide both OEM and ODM service.

Q: How can our company be your distribution partner?

A: We welcome you to be our distributor. For further details, please contact us.

Q: What is the payment of sample?

A: T/T and Alipay both acceptable.

Q: What is your packing?

A: Yes, our packaging is genuine original packaging. Of course, we can also provide neutral packaging or according to your requirements

Q: What is your sample policy?

A: If we have stock, we can provide samples, but the customer must pay the sample fee and express fee Question

Q: Have you tested all your goods before shipment?

A: Yes, we will conduct 100% test before delivery, and we will send detailed photos of parts for your approval Question .

As one of the leading stainless steel check valve manufacturers and suppliers in China, we warmly welcome you to wholesale custom made stainless steel check valve from our factory. Good service and quality products are available.

1 4 Stainless Steel Inline Check Valve, Stainless Steel Wafer Check Valve, tube fitting