RFS Hydraulics
  • About
    • Core Values
  • Brands
    • Stauff
    • RFS Hydraulics
    • MHA Zentgraf
    • Eaton
    • AF Hydro
    • Oleo Tecnica
    • Inteva
    • Both-well
    • KPL Industry
  • Products
    • Pipes and Tubes >
      • Stainless Steel Tubes
      • Stainless Steel Pipes
      • Hydraulic Steel Tubes
      • Copper Pipes
      • Copper Coils
      • Walform Tube
    • Pipe Clamps >
      • Stauff Clamps
      • Tubeclo Tube Clamps
      • Stauff Anti Corrosion Clamps
      • Tubeclo Rubber Insert Clamps
    • Flanges >
      • Hydraulic SAE Flanges
      • Square Flanges
    • High Pressure Valves >
      • High Pressure Ball Valves
      • SAE Flange Check Valves
      • Needle Valves
      • SAE Flange End Ball Valves
      • High Pressure Check Valves
      • ISO 6164 Ball Valves
    • High Pressure Fittings >
      • Compression Fittings
      • Ferrule Fittings
      • Forged Pipe Fittings
      • JIC Fittings
      • Quick Release Couplings
      • Pipe Adapter Fittings
    • Low Pressure Valves >
      • Ball Valves >
        • 1 Piece Ball Valve
        • 2 Piece Ball Valve
        • 3 Piece Ball Valve
        • L-Port Ball Valve
        • T-Port Ball Valve
        • Brass Ball Valve
        • Brass Mini Ball Valve
        • Stainless Steel Mini Ball Valve
      • Flange End Ball Valves >
        • PN10/16 SS316 Flange End Ball Valve
        • ANSI 150# SS316 Flange End Ball Valve
        • ANSI 300# SS316 Flange End Ball Valve
        • JIS 10K SS316 Flange End Ball Valve
        • ANSI 150# Cast Steel Flange End Ball Valve
        • ANSI 300# Cast Steel Flange End Ball Valve
      • Swing Check Valves >
        • ANSI 150# SS316 Swing Check Valves
        • JIS 10K SS316 Swing Check Valves
        • ANSI 150# Cast Steel Swing Check Valve
        • Threaded End SS316 Swing Check Valves
        • Threaded End Brass Swing Check Valves
      • Single Plate Check Valves
      • Dual Plate Check Valves
      • Spring Check Valves
      • Y-Strainers >
        • ANSI 150# SS316 Y-strainer
        • JIS 10K SS316 Y-strainer
        • Threaded End SS316 Y-strainer
        • ANSI 150# Cast Steel Y-strainer
        • JIS 10K Cast Steel Y-strainer
      • Gate Valves >
        • ANSI SS316 150# Gate Valve
        • JIS 10K SS316 Gate Valve
        • Threaded End SS316 Gate Valve (200 PSI)
        • Threaded End SS316 Gate Valve (800 PSI)
        • ANSI 150# Cast Iron Gate Valve
        • JIS 10K Cast Iron Gate Valve
        • ANSI 150# Cast Steel Gate Valve
        • ANSI 150# Forged Steel Gate Valve
        • Threaded End Forged Steel Gate Valve
        • Welded End Forged Steel Gate Valve
      • Globe Valves >
        • ANSI 150# SS316 Globe Valve
        • JIS 10K SS316 Globe Valve
        • Threaded End SS316 Globe Valve (200 PSI)
        • Threaded End SS316 Globe Valve (800 PSI)
        • ANSI 150# Cast Iron Globe Valve
        • JIS 10K Cast Iron Globe Valve
        • ANSI 150# Cast Steel Globe Valve
        • ANSI 150# Forged Steel Globe Valve
        • Threaded End Forged Steel Globe Valve
        • Welded End Forged Steel Globe Valve
      • Butterfly Valves >
        • ANSI 150# Cast Iron Butterfly Valve
    • Low Pressure Fittings >
      • Class 150 Fittings
      • Camlock Fittings
      • Copper Fittings
    • Accessories >
      • Pressure Gauges
      • Stauff Test Couplings
      • Walform Machine
      • GS Retain Ring
      • Anti-bloc Fett
      • Stauff Tube Clean Systems
      • Dowty Seals
      • Stauff Level Gauge
      • Stauff Filler Breathers
  • Catalogues
    • Pipes and Tubes
    • Pipe Clamps
    • Flanges
    • High Pressure Valves
    • High Pressure Fittings
    • Low Pressure Valves
    • Low Pressure Fittings
    • Accessories
  • Contact
  • MYREWARDS
    • MYFAQ

Hydraulic SAE Flanges

free quote now
SAE Flanges are designed to provide an alternative method of connecting a pipe, hose, tube or equipment.  The leak free connection is suitable for high pressures, larger sizes and assembly in tight quarters. It has achieved worldwide standard acceptance.  

​It is made from normalized forging and the basic raw material is steel with carbon content lower than 0.30%. Alternatively, stainless steel SS316 or galvanized flange material is available. ​The complete set flange combine of flat face, oring face, oring groove, 4 washers and cap screws. ​
​Size
  • 3/8” to 5”
Material
  • Carbon Steel  ST52.3/S355
  • Stainless Steel SS316L
Series
  • 3000
  • 6000
Connection Type ​
  • Threaded NPT 
  • Threaded BSPP 
  • Socket Weld (Weld in) 
  • Butt Weld (Weld on)
Configuration
  • SAE Flange 
  • Split Flange 
  • Flange Adaptor 
  • SAE Blind Flange
CATALOGUE :

Hydraulic SAE Flanges

SPLIT FLANGES ​

SAE Blind Flanges


What are Hydraulic SAE Flanges

1. What are hydraulic SAE flanges use for? 

The 4-bolt hydraulic sae flange connection conforms to SAE J518 and ISO 6162 standards. ​The flange has through holes for the mounting bolts and it has UNC or metric thread. The mounting holes of flat face are tapped while oring face doesn’t include.
Picture
There are various bolt grades that are paired to install in equipment:
  • Bolt grade 8.8: Yellow zinc as standard material supplied with carbon steel flange.
  • Bolt grade 10.9: FIZn 240h L suitable for high temperature application, available upon request.
  • Bolt grade SS304: Standard material supplied with stainless steel flange.
  • Bolt grade SS316: Higher corrosion resistance, available upon request.
​2. What type of O-rings are used for hydraulic flanges?
It is a static face seal which uses a high durometer O-ring for the flange sealing. Metal-to-metal contacts at the outer face of the flange will cause leakage. Therefore, the O-ring sealing is compressed between the flat face and O-ring face providing a reliable soft sealing.  Flanges use an O-ring to seal a joint and contain pressurized fluid. 
O-Ring Side SAE Flange
O-Ring Side SAE Flange
​The seals of flanges are available in the following materials:
Description
NBR 70/90
Viton 90
Equivalent
BUNA-N
FKM
Temperature Range (°C)
-34°C to 121°C
-26°C to 205°C
Recommended Application
  • Petroleum pols and fluids
  • Cold Water
  • Diesel fuel and fuel oils 
  • Mineral oil and grease 
  • Vegetable oil 
  • Silicone oil and grease
  • Petroleum pols and fluids
  • Cold Water
  • Silicone greases and oils
  • Aromatic hydrocarbons 
  • Aliphatic hydrocarbons 
  • Fuels with methanol content
Non Recommended Application
  • Aromatic hydrocarbons 
  • Phosphate ester fluids 
  • Strong acids
  • Automotive brake fluid
  • Ammonia gas, amines, alkalis
  • Low molecular organism acids 
  • Superheated steam  
  • Glycol based brake fluids
3. What is the difference between code 61 and 62 flanges?
​

SAE Flange is designed in two difference code design and it is code 61 and 62. The summary table as per below:
Description
Code 61
Code 62
Series
3000
6000
Size
3/8” to 5”
3/8” to 3”
Working Pressure (bar)
34 to 345
414
4. How are SAE flanges attached to pipe? ​
element_settings.Image_30621876.default
Hydraulic SAE flange provides a zero-clearance assembly that enables easy connection, disconnect and maintenance of tube to hose, tube to tube or manifold connection. Infinite positioning is a built-in feature to enable flange to put in different position angle. There are several types of connection: threaded end (NPT or BSPP) and welding end (socket weld or butt weld). 

​The connection of welding and threaded is able to maximize reliability. However, it is inevitable that connections must be removed to allow replacing or servicing on system components. To improve flanges productivity, flanges have advanced considerably before installation to improve performance, installation convenience but still remain overall function effectiveness and efficiency.
5. What is the purpose of a SAE flange? ​​

​A simple SAE flange installation design provides several advantages:
​
  • Ability to connect pipe size up to 5 inch.
  • Single seal point between pipe or system assembly.
  • Much lower tightening torque required from the four bolts compared to other types of flange with equivalent size
  • Ease of disassembly through use of split flange.
6. How do you install a SAE flange? ​

​There are 4 simple steps to install SAE flange?
​Step 1: Check components surface and ensure there are no damage or contamination. 

Step 2: Align the flange connection before inserting the O-ring seal on the female flange groove. Place the washer with cap screws and bolt through the bolt holes.

Step 3: Hand tighten cap screws to seat O-ring on flange groove.  
​
Step 4: Ensure the tighten process meets the torque value below:
Picture
Flange Size
Screw Thread
Screw Torque (NM)*
1/2"
M8
32
3/4"
M10
70
1"
​M10
​70
1  1/4"
​M10
70
1  1/2"
M12
130
2"
M12
​130
2  1/2"
M12
​130
3"
M16
295
3  1/2"
M16
295
4"
M16
295
5"
M16
295
Flange recommended Torque Value Table Series 3000 Code 61
​Flange Size
​Screw Thread
​Screw Torque (NM)*
1/2"
M8
32
3/4"
M10
70
1"
M12
130
1  1/4"
M12
130
1  1/2"
M16
295
2"
M20
550
2  1/2"
M24
550
3"
M30
650
Flange recommended Torque Value Table Series 6000 Code 62
To watch how to install sae flange video, please click this link. 

CATALOGUE :

Hydraulic SAE Flanges

SPLIT FLANGES ​

SAE Blind Flanges


Ask a Question

​QUICK LINKS

​Home     About Us     Products     Catalogues     Contact     FAQ     Terms & Conditions

GET IN TOUCH WITH US

Vertical Divider
RFS HYDRAULICS

STAY CONNECTED WITH US

© 2022 RFS Hydraulics Sdn Bhd. All rights reserved.
  • About
    • Core Values
  • Brands
    • Stauff
    • RFS Hydraulics
    • MHA Zentgraf
    • Eaton
    • AF Hydro
    • Oleo Tecnica
    • Inteva
    • Both-well
    • KPL Industry
  • Products
    • Pipes and Tubes >
      • Stainless Steel Tubes
      • Stainless Steel Pipes
      • Hydraulic Steel Tubes
      • Copper Pipes
      • Copper Coils
      • Walform Tube
    • Pipe Clamps >
      • Stauff Clamps
      • Tubeclo Tube Clamps
      • Stauff Anti Corrosion Clamps
      • Tubeclo Rubber Insert Clamps
    • Flanges >
      • Hydraulic SAE Flanges
      • Square Flanges
    • High Pressure Valves >
      • High Pressure Ball Valves
      • SAE Flange Check Valves
      • Needle Valves
      • SAE Flange End Ball Valves
      • High Pressure Check Valves
      • ISO 6164 Ball Valves
    • High Pressure Fittings >
      • Compression Fittings
      • Ferrule Fittings
      • Forged Pipe Fittings
      • JIC Fittings
      • Quick Release Couplings
      • Pipe Adapter Fittings
    • Low Pressure Valves >
      • Ball Valves >
        • 1 Piece Ball Valve
        • 2 Piece Ball Valve
        • 3 Piece Ball Valve
        • L-Port Ball Valve
        • T-Port Ball Valve
        • Brass Ball Valve
        • Brass Mini Ball Valve
        • Stainless Steel Mini Ball Valve
      • Flange End Ball Valves >
        • PN10/16 SS316 Flange End Ball Valve
        • ANSI 150# SS316 Flange End Ball Valve
        • ANSI 300# SS316 Flange End Ball Valve
        • JIS 10K SS316 Flange End Ball Valve
        • ANSI 150# Cast Steel Flange End Ball Valve
        • ANSI 300# Cast Steel Flange End Ball Valve
      • Swing Check Valves >
        • ANSI 150# SS316 Swing Check Valves
        • JIS 10K SS316 Swing Check Valves
        • ANSI 150# Cast Steel Swing Check Valve
        • Threaded End SS316 Swing Check Valves
        • Threaded End Brass Swing Check Valves
      • Single Plate Check Valves
      • Dual Plate Check Valves
      • Spring Check Valves
      • Y-Strainers >
        • ANSI 150# SS316 Y-strainer
        • JIS 10K SS316 Y-strainer
        • Threaded End SS316 Y-strainer
        • ANSI 150# Cast Steel Y-strainer
        • JIS 10K Cast Steel Y-strainer
      • Gate Valves >
        • ANSI SS316 150# Gate Valve
        • JIS 10K SS316 Gate Valve
        • Threaded End SS316 Gate Valve (200 PSI)
        • Threaded End SS316 Gate Valve (800 PSI)
        • ANSI 150# Cast Iron Gate Valve
        • JIS 10K Cast Iron Gate Valve
        • ANSI 150# Cast Steel Gate Valve
        • ANSI 150# Forged Steel Gate Valve
        • Threaded End Forged Steel Gate Valve
        • Welded End Forged Steel Gate Valve
      • Globe Valves >
        • ANSI 150# SS316 Globe Valve
        • JIS 10K SS316 Globe Valve
        • Threaded End SS316 Globe Valve (200 PSI)
        • Threaded End SS316 Globe Valve (800 PSI)
        • ANSI 150# Cast Iron Globe Valve
        • JIS 10K Cast Iron Globe Valve
        • ANSI 150# Cast Steel Globe Valve
        • ANSI 150# Forged Steel Globe Valve
        • Threaded End Forged Steel Globe Valve
        • Welded End Forged Steel Globe Valve
      • Butterfly Valves >
        • ANSI 150# Cast Iron Butterfly Valve
    • Low Pressure Fittings >
      • Class 150 Fittings
      • Camlock Fittings
      • Copper Fittings
    • Accessories >
      • Pressure Gauges
      • Stauff Test Couplings
      • Walform Machine
      • GS Retain Ring
      • Anti-bloc Fett
      • Stauff Tube Clean Systems
      • Dowty Seals
      • Stauff Level Gauge
      • Stauff Filler Breathers
  • Catalogues
    • Pipes and Tubes
    • Pipe Clamps
    • Flanges
    • High Pressure Valves
    • High Pressure Fittings
    • Low Pressure Valves
    • Low Pressure Fittings
    • Accessories
  • Contact
  • MYREWARDS
    • MYFAQ