Carbon Steel Stainless Steel Slip on Flange Applied for Pipeline Connecting System

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW, GOST Atk 24.200.02.90
• Type: Welding Flange
• Model NO.: SABS 1123 SO
• Material: Stainless Steel,Carbon Steel,Alloy Steel
• Structure: Flanges
• Connection: Welding
• Sealing Surface: BS
• Manufacturing Way: Forging
• Technics: Forged
• Product Name: Plate Flange
• Model Number: SABS 1123
• Certificate: ISO, CE, PED, BV, Ks
• Usage: Joining Pipe Lines
• Pressure: 600kba 1000kba 1600kba 2500kba 4000kba
• Transport Package: Wooden Box
• Specification: DN10-DN2000
• Trademark: Maitolead
• Origin: Hebei, China
• HS Code: 7307210000
• Production Capacity: 1000000piece/Year
• Package Size: 48.50cm * 32.00cm * 18.00cm
• Package Gross Weight: 100.000kg

Product Description

South African Standard SABS1123 Flange

The SABS 1123 Slip on Flange is a solid, flat plate-type flange designed for pipe end closure and system isolation in piping applications. Manufactured from high-quality steel plate and machined to precise dimensions, this blind flange conforms to the SABS 1123 standard, ensuring reliable performance and compatibility with a broad range of industrial piping systems.

This plate blind flange features a robust construction with no center bore, making it ideal for sealing off pipe ends, closing off valve outlets, or providing access points for future extensions or maintenance. Its simple design and durable build provide excellent sealing capability when installed with the appropriate gasket and bolting arrangement.

Key Features:

Manufactured according to SABS 1123 dimensional and material specifications
Solid plate design with no center bore, ensuring complete pipeline closure
Suitable for system shutdown, maintenance, or pipeline end termination
Compatible with standard bolt hole patterns for easy installation
Available in various materials including carbon steel, stainless steel, and alloy grades
Ideal for applications in water, oil, gas, petrochemical, and general industrial piping systems
Pressure ratings available up to applicable SABS standard classes

Installation Process

To ensure safe and leak-free operation, follow these installation steps:

Verify Specifications
Confirm flange size, pressure class, material, and bolt pattern match the mating flange.
Inspect Sealing Surfaces
Ensure flange faces are clean, smooth, and free from damage.
Install Suitable Gasket
Select gasket material based on pressure, temperature, and media (rubber, PTFE, spiral wound, etc.).
Align Bolt Holes
Position the plate flange accurately against the mating flange.
Tighten Bolts Evenly
Use a cross-tightening sequence and apply uniform torque.
Pressure Test
Conduct hydrostatic or pneumatic testing to confirm sealing integrity.
Tip: Always follow recommended torque values and gasket manufacturer guidelines.

Model Number:	SABA1123
Standard:	SABA1123 PLATE TYPE3 600KBA 1000KBA 1600KBA 2500KBA 4000KBA FLANGE
Product name:	Slip on Flange
Material:	Carbon steel: CT20 Stainless steel: 12X18H10T, 10X17H13M2T
Pressure:	600KBA 1000KBA 1600KBA 2500KBA 4000KBA
Technics:	Forged
Connection:	Welding
Packing:	Plywood cases\wooden Pallets
Certificate:	ISO, CE, PED, BV, KS
Surface Antirust:	Antirust light oil, Black paint coating,Yellow paint coating or Red paint coating,Galnavized (Hot galvanized or Cold galvanized or Electro Galvanized)
Usage:	Joining Pipe Lines

ABOUT US

The maitolead group's flange and pipe fittings factory was established in 2017, we are a professional manufacturer focusing on flanges, pipe fittings, and elbows.made of different materials (stainlesssteel, carbon steel, alloy steel, etc.. We are a physical manufacturer integrating customization, processing, production, sales and export trade. we have a stock of over 2000 tons and produce and sell over 20 tons of spot goods daily. The company's products are exported to more than 30 countries and regions including Europe, America, and Asia.

we are main production equipment of the company includes forging hammers, ring-rolling machine, lathes, drillers, pushing machine, presses, shot blasting machine etc. Materials available are carbon steel, stainless steel and alloy steel. Products are manufactured in accordance with international standards such as ANSI,DIN, EN1092, JIS, BS, GOST standards or with customers special requirement and design. we owns certificates of CE, PED, ISO, BV, KS. in addition, Maitolead Group gives test certificate, which are compliant to EN 10204 3, 1B and contains physical and chemical testing.

Available Standards
ANSI / ASME B16.5 (Class 150 / 300 / 600 / 900)
EN 1092-1 (PN6 / PN10 / PN16 / PN25 / PN40)
DIN / BS / JIS / GOST (available upon request)

Flange Types
Weld Neck (WN) / Slip-On (SO) / Blind (BL) / Threaded (TH) / Socket Weld (SW) / Lap Joint (LJ) / Plate Flange (PL)

Surface Treatment
Anti-rust oil / Black paint / Zinc plated / Hot-dip galvanized (optional)

Our products are widely used in petroleum, chemical, machinery, electric power, metallurgy, and coal mine construction, and have earned high praise and trust from customers worldwide.

Customization Support

We provide material customization, size customization, drawing-based non-standard flange fabrication, and packaging customization (carton / pallet / wooden case with OEM labeling).

                   10+

                           years of

manufacturing experience

.                                  50000

           tons of exports per

                        year

              30+

            project partners

PRODUCT INFORMATION

Flange,also called flange disc or flange. The flange is a part connected between the shaft and the shaft, which is used for the connection between the pipe ends; It is also useful in the flange on the import and export of the equipment for the connection between two devices, such as the reducer flange. Flange connection or flange joint refers to a detachable connection which is connected by flanges, gaskets and bolts as a group of combined sealing structures. 

Because the flange has good comprehensive performance, it is widely used in chemical industry, construction, water supply,drainage, petroleum, light and heavy industry, refrigeration, health, water heating, fire, power, aerospace, shipbuilding and other basic projects.

Product Parameter
Standards	ANSI	ANSI B16.5 ASME B16.47 series A/B
	DIN	DIN2635
	EN	EN1092-1:2002
	JIS	JIS B2220-2004, KS D3576, KS B6216 KS B1511-2007 JIS B2261; JIS B8210
	BS	BS4504 BS10 Table D/E
Material	ANSI	SS ANSI 304(L); ANSI 316(L); Duplex Steel ASTM A182; S31803; S32205
	DIN	CS RST37.2;S235JR SS 304/304L,316/316L
	EN	CS RST37.2;S235JR;C22.8SS 304/304L,316/316L
	JIS	SS400,SF440 SS 304/304L, 316/316L
	BS	CSRST37.2;S235JR;C22.8;Q235SS 304/304L,316/316
Pressure	ANSI	Class 150, 300, 600, 900, 1500, 2500lbs
	DIN	PN6,PN10,PN16,PN25,PN40,PN64,PN100
	EN	PN6,PN10,PN16,PN25,PN40,PN64,PN100
	JIS	1K,2K,5K,10K,16K,20K,30K,40K
	BS	PN6,PN10,PN16,PN25,PN40,PN64,PN100
Size	ANSI	1/2″ – 48″
	DIN	DN15-DN1200
	EN	DN15-DN1200
	JIS	15A-1500A
	BS	DN15-DN1200
Packaging	Loose package; Packaged in bundles(2Ton Max); bundled pipes with two slings at the both end for easy loading and discharging; End with Plastic caps; wooden cases.
Test	Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, hydraulic testing , X-ray Test.
Application	Light and heavy industry, refrigeration, health, water heating, fire, power, aerospace, shipbuilding and other basic projects.

Main production process

PRODUCTION LINE

Product Inspection

PACKING&SHIPING

FAQ

Q1: What is SABS 1123 Type 8?
Type 8 refers to the blind flange design under SABS 1123, used to close pipeline ends or unused connections.

 
Q2: Can SABS 1123 blind flanges be used permanently?
Yes. They are suitable for both permanent sealing and temporary isolation, depending on system requirements.

 
Q3: Are SABS 1123 flanges interchangeable with EN or ANSI flanges?
No. SABS 1123 flanges differ in dimensions and bolt patterns and are not directly interchangeable with EN or ANSI standards.

 
Q4: Which gasket is recommended for SABS 1123 Type 8 blind flanges?
Gasket selection depends on PN rating and service conditions; graphite or metal-reinforced gaskets are recommended for higher pressures.

 
Q5: Are custom sizes, materials, or markings available?
Yes. Custom sizes, materials, coatings, and project-specific markings can be supplied upon request.