Welcome to MAXY Flange Spray Shields China

Flange spray shields are also known as flange protectors, flange spray guards,flange guards, flange covers, flange safety shields, flange safety covers, pipe spray guards. They are designed as an important protection facility to workers, property and equipment by preventing dangerous spray-outs, hazardous leaks of corrosive fluids such as oil, acid or high-temperature steam.
Flange spray shields are effective in reducing inspection costs, maintenance costs and downtime in factories by early leak detection and the ability to temporarily contain and limit hazardous leaks and sprays.
Flange spray shields are widely used on pipe joints including flanges, valves, bends, unions, expansion joints, fittings, elbows and strainers for most possible pipeline safety.
MAXY Flange Spray Shields manufactures flange guards made of PP, PVC, Polypropylene fiber, stainless steel and PTFE teflon material that are chemical, UV, weather and high-temperature resistant for every application, like oil and gas industries, chemical industries, food and dairy industries, pharma industries, power plants, chip manufacturers, shipping industries, aviation industries, defence industries, textile industries etc.
We provide OEM/ODM service for flange spray shields for all PN, ANSI, DIN, JIS, BS, AS, and KS standards. Please let us know what you need in details.

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PVC flange guard

Flange Spray Shields Main Types

flange spray guards

PP Polypropylene Plastic Flange Spray Shields

flange spray shields

 PVC Polyvinyl Chloride Flange Spray Shields

flange safety shields

PTFE Teflon Flange Spray Shields

flange safety guards

SUS304 Stainless Steel Flange Safety Guards

flange spray shields

What is flange spray shield

Flange spray shield is a protective facility to be installed onto flanges and valves to prevent injury to your workers, damage to surround equipment or environment in unexpected accidents of spray-outs or leaks of hazardous chemicals of acid and alkaline, oil and gas, hot steam,etc.

Why you should always use flange guards

why you should use flange spray shields

Use flange spray shields in pipe connections

In industry production, dangers of unexpected spray-outs and leaks are everywhere, your workers may get hurt, your equipment may be damaged, leakage of chemicals might be a serious contamination to the environment.
But all these things could be avoided by installing safety spray shields!
There are at least 6 benefits using safety guards in pipe connections:

  1. Protect your workers from injury
  2. Protect your equipment from contamination and corrosion
  3. Protect the environment
  4. Prevent losing of chemical material, oil&gas, hot steam
  5. Reduce factory downtime by early leak detection and early maintenance of broken pipe connections.
  6. Reduce factory production cost. You may not realized it, but all the above benefits of using flange/ valve safe guards is saving your money.

How does flange & valve safety guards work

Flange safety guards are installed to the pipe connections to cover the flanges and valves, so that in case of leakage, efficiently limit the acid/alkaline, oil mist, or hot steam by spraying out fiercely.
Flange spray shields work in 2 ways:

  1. Easy and early detection of leak & spray-out risks. Some type of flange spray shield is made of transparent PVC, PP, PTFE  material so that factory maintainers can visually find the leakage through the shields. In most flange spray shields, leak indicator patches – pH indicating patches are attached. In case of acid or alkali leak, pH indicating patches will immediately change color to warn the opearators as soon as possible. The pH indicating patch is replaceable, so you can reuse the safety guards by replacing new pH patches.
  2. Flange spray shields can temporarily hold and limit the hazardous leaks & spray-outs of chemicals, acid & alkali, oil/ gas, and hot steam. So that the leak consequences and difficulty of maintenance is reduced to minimum.

What material are flange spray shields made of and the features

MAXY flange spray shields are available in PP – polypropylene, PVC – polyvinyl chloride, PTFE teflon, and stainless steel SUS304/ SUS316.
Flange spray shields made of non-metallic materials (PP/PVC/PTFE) are suitable for lower temperature environment (maximum 100°C/212℉), they have wide range of chemical resistance and excellent UV stabilization. To check the chemical resistance chart of each product, visit details of these flange spray shields, click each link: PP flange spray shields, PVC flange spray shields, PTFE flange spray shields.
In high-temperature or high-pressure environment, metallic spray guards should be used for 100% safety. Stainless steel SUS304/ SUS316 flange safety guards are commonly used for high-pressure and temperature up to 400°C (750℉). Metallic spray safety guards have different chemical resistance features compared to fabric material spray safety guards. Visit product page for details.

In which part of the pipes/equipment should flange spray shields be used

Install flange/ valve safety guards at the right place can save cost and prevent accidents. Below are the key locations you should use flange safety shields, but remember, locations need to install pipe safety guards are not limited to these points:

  • Piping near head and eye level.
  • Piping near walkways and traffic areas, including areas with overhead piping.
  • Unloading/loading areas, including docks and terminals.
  • Piping on discharge side of pumps.
  • Piping in tight, confined spaces.
  • Piping conveying flammables near hot surfaces and instrument panels.

What applications can flange spray shields be used to

Flange spray shields can be used in 5 main applications.

flange spray shield use as gas jet protection

Gas Jet

flange spray shield use in acid alkali environment


pipe safety guard for oil mist

Oil Mist

flange spray shield


flange spray shield

Thermal Oil

What industries can flange spray shields be used to

Flange spray shields are commonly used in 6 main industries.

flange spray shield in chemical industry


flange spray shield in food industry


flange spray shield in oil & gas industry

Oil Gas

flange spray shield in power industry


flange spray guards


flange spray shield

Other Industry

Chemical industry

A wide range of hazardous chemical products are used within chemical and pharmaceutical plants (petrochem, bulk, speciality etc). Never has health & safety been of such a high importance as now, with ‘zero incidents’ being the target for many chemical manufacturers. We have over 10 years experience supplying flange spray shields to these industries for a wide range of applications.
For general environment (such as sewage, cutting fluid, etc.), PVC material flange safety cover or PP material flange spray shields are generally used for pipe spray safety;  If the environment contains weak acid or weak alkali, you can choose PVC flange guard or PTFE flange  guards; If the the environment contains strong acid, strong alkali, organic solvent, you can choose PTFE flange spray shields.

Food industry

The food industry includes a variety of different sub-industries including: meat processing, dairy, soft & alcoholic drinks, confectionery, snack-food & ready meals, food-grade packaging. More common applications that need flange safety guards include thermal oil for a number of processes, acid for cleaning & water treatment & alcohol spray prevention.

Oil & Gas industry

Safety is more than important in the Oil & Gas industry from extraction, through pipeline & terminals, to refining & petrochemicals. Several common flange & valve safety shield applications exist within the wider oil & gas industry, including prevention of oil mist, acid spray-outs and jet fire.

Power generation industry

Both large-scale generation stations to small engine-sets will require flange spray shields.
Typically lubrication oil and seal oil require some form of shielding to avoid spray-outs contacting hot surfaces with the subsequent risk of ignition. This application has been responsible for many fires, causing considerable damage and significant insurance claims.
In addition, high pressure steam leaks represent a major hazard to maintenance personnel in Turbine and Boiler rooms.  Lastly, many large power stations particularly located on the coast, use large quantities of Acid to treat cooling water in effluent treatment plant, all will require flange spray guards.

Like any other piece of major equipment in the power industry, wind turbines represent a large investment for the companies that rely on them to generate both electricity and revenue.
Two key components of the wind turbine are the lubrication oil used in the gearbox as well as the hydraulic oils used to control the blade pitch & breaking system. Oil leaks that occur under pressure, can form a hydrocarbon vapour or “oil mist” which can easily ignite on hot surfaces resulting in fire. Due to their inaccessibility, wind turbine fires can result in considerable damage & expensive “downtime”. But you can avoid this by installing flange spray shields.

Marine industry

Ship engine room safety is largely governed by SOLAS. In 2003 an amendment was raised to avoid fires (the result of oil on hot surfaces) stating “oil lines shall be screened or otherwise protected against spray”. Further, oil mist formation is considered particularly dangerous and many injuries have occurred through high pressure steam leaks.
A number of high profile cruise lines have been directly affected by oil spray from leaking pipe joints. Resulting fires and power loss creates widespread detestation.
We regularly supply spray guards for flanges, filter hoods, fuel hoses and pumps.

Other industry

Many other process industries require safety spray shields for a variety of applications. These include cement, paper & pulp, waste water treatment, mining and many others.

Why PTFE teflon flange spray shields is recommended to any industry and application

Teflon material owns unique features, which make it the perfect material for flange safety guards in almost any environment.
1. Non-stickiness: Because it is insoluble in any substance, almost all substances will not adhere to the PTFE flange spray shields.
2. Wear resistance: It has excellent wear resistance under high load. Under a certain load, it has the dual advantages of wear resistance and non-sticking.
3. Low friction coefficient: PTFE coating film has a low friction coefficient value between 0.05-0.15.
4. Moisture resistance: The surface of the PTFE coating film does not stick to water and oil, and it is not easy to stick to the solution during production operations. If there is a small amount of dirt, simply wipe it off. Short downtime, saving working hours and improving work efficiency.
5. Heat resistance: PTFE teflon flange spray shields can withstand high temperature to 300℃ in a short time, and generally can be used continuously between 240℃~260℃. It has remarkable thermal stability. It can work at freezing temperature without embrittlement, and at high temperature Does not melt.
6. Corrosion resistance: PTFE is hardly corroded by chemicals, and can withstand strong acid and alkali to protect parts from any kind of chemical corrosion.

How to install flange safety guards

Installation of flange safety guards is actually a piece of cake for any experienced operators. You can complete 1 installation in around 20 seconds.

  1. Installation of PP material flange safety shields. There is no string in PP flange guards. Just buckle up the clips. To see a video of easy installation of PP flange spray shields, please visit PP Flange Spray Shield page, check the ‘Installation’ tab.
  2. Installation of PVC and PTFE teflon material flange spray shields both involves hook and loop fasteners and strings, which ensure 100% reliable of the flange protectors. Visit each product page for installation videos: PVC flange spray shields; PTFE flange guards.
  3. Stainless steel SUS304 SUS316 flange covers are well designed for taking least effort in installation. Check Stainless steel fange guards product page for installation video.
    stainless steel flange spray shields

    Install stainless steel flange covers easily with the buckle

How to purchase flange spray shields

You can buy flange safety covers from MAXY in 2 ways.

Firstly, for wholesale orders, or OEM ODM services of flange spray shields, please let us know

  1. Your flange& valve standard
  2. Size information
  3. Quantity of each size
  4. Your seaport/airport
  5. Your contact information

Shipping method of bulk orders will be determined by the total volume and weight of the ordered flange guards, by seafreight or airfreight.
Secondly, for small quantity orders, you can buy in-stock flange guards online by paying Credit card, Go Shopping. Only PVC flange guards and PTFE teflon flange spray shields are available in our online shop.  Flange safety covers ordered online will be delivered by airfreight express shipping.

Do you have flange spray shields in stock

Yes, we have common sizes of flange spray shields in stock, from DN15-DN700 (1/2 – 28 inches).
For standard size flange safety guards, we can ship them by air freight or internation Express shipping very fast.