One-Stop Service
My company has buy, examine, saw to slice, forge from the material, hot processing, the machine process packing hair luck the integral whole turn of production system.
Product Application
Petrochemical industry, energy industry, water treatment industry, environmental protection engineering, construction engineering, shipbuilding industry, valves, water pumps, power plants, steel mills: valves, water pumps, power plants, steel mills.
Quality Control
Company strictly according to ISO9000 standard organize produce and manage, build up valid circulate stable dependable quality management and guarantee system, strict material production equipments and quality of the control, consummate processing technology experience and forerunner examination experiment.
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Industry |
Core pain points |
Our solution |
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Food and Beverages |
Frequent disassembly and washing + hygiene dead corners |
316L one-piece molding + seamless design |
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Biopharmaceuticals |
CIP/SIP sterilization tolerance |
Electropolishing Ra≤0.4μm+3-A certified |
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Water treatment plant |
Chloride ion corrosion + Quick repair |
2205 Duplex steel + modular design |
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Shipbuilding |
Quick repair at sea |
Super Austenitic 6Mo+ shockproof locking |
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Chemical piping |
Corrosive media + Budget control |
904L alloy + economical solution |
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Grade |
Extreme conditions |
Application cases |
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304 |
Nitric acid <30%/40 ° C |
Hvac condensate water |
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316L |
Seawater <40 ° C |
Marine ballast water system |
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2205 |
Chloride ion 5000ppm |
Desalination plant |
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6Mo |
Bleach + high temperature |
Pulp bleaching line |
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904L |
Concentrated sulfuric acid/phosphoric acid |
Fertilizer plant reaction unit |

Advantages of Slip-On Flange
Ease of Installation
Simple ways to slide them together along with minimal welding requirements makes Slip-On Flanges easily manageable for any facility.
Cost-Effective
The material expenditures as well as labor installation expenses for Slip-On Flanges tend to lower than other flange types.
Versatility
Russia markers are obtainable with different dimension choices alongside design preferences thus enabling use for industrial tubing systems along with water supply systems at low pressures.
Low Skill Requirement
The method of installing Slip-On Flanges works without advanced welding skills thus leading to faster installation times compared to butt weld flanges.
Durable Sealing Properties
The proper installation of welding and gaskets leads to dependable seals within many different systems.
Compatibility with Timely Maintenance
The ability to detach Slip-On Flanges quickly makes them appropriate for systems that must undergo cleaning operations or maintenance work.
Raised Face (RF) Slip-On Flange
Features a raised face to improve gasket sealing.Commonly used in process industries and chemical plants.
Flat Face (FF) Slip-On Flange
Has a flat face, ensuring even distribution of pressure.Typically used in low-pressure applications.
Ring-Type Joint (RTJ) Slip-On Flange
Designed for high-pressure applications.
Uses a metal ring gasket for a strong seal.
Reducing Slip-On Flange
Used to connect pipes of different diameters.
Helps in adapting different pipeline sizes without additional fittings.
Water treatment and distribution
Generally, water treatment plants work under low-pressure conditions. So, slip-on flanges can be used in piping systems from one place to another. Slip-on flanges are easy to assemble and maintain. So water treatment plants can easily clean and maintain them. They can save companies time and money.
Commercial and residential HVAC system
Slip-on flanges are easy to install and repair. It makes it the best option for use in HVAC systems. They are generally used in ductwork and low-pressure gas lines, where cost efficiency and regular maintenance are very important.
Fire protection systems
Slip-on flanges are used in sprinkler systems and other fire protection equipment. They are important because fire protection systems require quick assembly. They are also cost-effective, which is important as fire protection systems are important in fire conditions.
Light industrial manufacturing
Light industrial manufacturing companies use slip-on flanges in their compressed air and low-pressure stream systems. For example, the Textile industry uses them in compressed air systems to make sure that the machinery runs smoothly. These flanges are quick to install and low cost making it a best choice for light industrial manufacturing companies.

|
Ge Size (Nominal Pipe Size) |
Outside Diameter (OD) |
Thickness (T) |
Raised Face Diameter (R) |
Number of Bolt Holes |
Bolt Hole Diameter (BD) |
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1/2″ (15mm) |
3.50″ (89mm) |
0.44″ (11mm) |
1.38″ (35mm) |
4 |
0.62″ (16mm) |
|
3/4″ (20mm) |
3.88″ (98mm) |
0.50″ (13mm) |
1.69″ (43mm) |
4 |
0.62″ (16mm) |
|
1″ (25mm) |
4.25″ (108mm) |
0.56″ (14mm) |
2.00″ (51mm) |
4 |
0.62″ (16mm) |
|
1-1/4″ (32mm) |
4.63″ (117mm) |
0.62″ (16mm) |
2.38″ (60mm) |
4 |
0.62″ (16mm) |
|
1-1/2″ (40mm) |
5.00″ (127mm) |
0.69″ (17mm) |
2.75″ (70mm) |
4 |
0.75″ (19mm) |
|
2″ (50mm) |
6.00″ (152mm) |
0.75″ (19mm) |
3.50″ (89mm) |
4 |
0.75″ (19mm) |
|
2-1/2″ (65mm) |
7.00″ (178mm) |
0.88″ (22mm) |
4.00″ (102mm) |
4 |
0.75″ (19mm) |
|
3″ (80mm) |
7.50″ (191mm) |
0.94″ (24mm) |
4.50″ (114mm) |
4 |
0.75″ (19mm) |
|
4″ (100mm) |
9.00″ (229mm) |
1.00″ (25mm) |
5.50″ (140mm) |
8 |
0.75″ (19mm) |
|
5″ (125mm) |
10.00″ (254mm) |
1.06″ (27mm) |
6.50″ (165mm) |
8 |
0.88″ (22mm) |
|
6″ (150mm) |
11.00″ (279mm) |
1.12″ (29mm) |
7.50″ (191mm) |
8 |
0.88″ (22mm) |
|
8″ (200mm) |
13.50″ (343mm) |
1.25″ (32mm) |
9.50″ (241mm) |
8 |
0.88″ (22mm) |
|
10″ (250mm) |
16.00″ (406mm) |
1.38″ (35mm) |
11.75″ (298mm) |
12 |
1.00″ (25mm) |
|
12″ (300mm) |
19.00″ (483mm) |
1.50″ (38mm) |
14.25″ (362mm) |
12 |
1.00″ (25mm) |
Safety First & Preparation:
Isolate the pipeline and thoroughly clean all contact surfaces.
01
Alignment & Temporary Fixing:
Slide the flange on, align with the mating flange, and secure with tack welds.
02
Final Welding:
Complete the internal and external fillet welds, then clean the area after cooling.
03
Gasket & Bolt Installation:
Place the gasket correctly and tighten all bolts evenly in a crisscross pattern.
04
Integrity Check:
Always perform a final pressure test to ensure a leak-free seal.
05
Marking & Packing
Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.
We're professional slip-on flange manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to wholesale bulk slip-on flange for sale here from our factory.
Carbon Stee Raised Face Slip On Flange, Ansi Slip On Flange, Reducing Slip On Flange