SUS F304 50A Lapped Joint (LJ)Flange Stainless Steel JIS B2220

Product Overview

SUS F304 50A Lapped Joint (LJ)Flange Stainless Steel JIS B2220

The SUS F304 50A Lapped Joint (LJ)Flange Stainless Steel JIS B2220 is a high-quality industrial piping component manufactured to meet stringent international standards. Designed for critical applications across various industries, this flange offers exceptional performance, reliability, and longevity.

Our stainless steel flanges are precision-engineered using advanced manufacturing techniques and premium-grade materials. Each flange undergoes rigorous quality control and testing to ensure compliance with dimensional tolerances and pressure ratings specified by international standards.

This innovative loose ring flange provides exceptional flexibility for industrial piping systems requiring frequent maintenance. The practical loose flange with stub end design enables easy assembly and perfect alignment adjustment during installation. Manufactured from SUS F304 stainless steel according to JIS B2220 standards, this durable loose ring flange delivers reliable performance in corrosive environments. The unique construction of this loose flange with stub end allows for cost-effective system modifications and component replacement. Ideal for chemical processing, food industry, and piping applications, this versatile loose ring flange offers significant advantages where rotational alignment and economical solutions are essential requirements. The precision-engineered loose flange with stub end ensures secure connections while simplifying maintenance procedures.

Key Features

• Premium Quality Materials: Manufactured from certified stainless steel grades ensuring excellent corrosion resistance and durability
• Precision Engineering: CNC machined to exact specifications with tight tolerances meeting international standards
• Comprehensive Size Range: Available in multiple sizes and pressure ratings to suit various piping applications
• Industry Compliance: Fully compliant with ASME, EN, DIN, JIS, and other international standards
• Versatile Applications: Suitable for oil & gas, chemical processing, power generation, water treatment, and other industrial applications
• Quality Assurance: 100% inspection and testing with comprehensive documentation and traceability
• Customization Available: Custom manufacturing services available for special requirements and non-standard dimensions
• Global Supply: Worldwide shipping with experienced logistics support ensuring safe and timely delivery

Dimensions & Sizes

Dimensions & Sizes(5K)

Nominal Dia. of Flange	Outside Dia. of Flange D	Sectional Dimensions of flange												Nominal Bolt Size	Welding
		Dia. of Bolt Circle C	Dia. Of raised Face g	Inside Dia.  Of Flange do	Outside Dia. Of Applicable pipe	t	T	Dia. of Hub		Radius r	Raised Face f	Hole Dia. H	Number of Bolt Holes
								a	b						W1	W2
10	75	55	39	17.8	17.3	9	–	–	–	–	1	12	4	M10	5	2.5
15	80	60	44	22.2	21.7	9	–	–	–	–	1	12	4	M10	5	3
20	85	65	49	27.7	27.2	10	–	–	–	–	1	12	4	M10	5	3
25	95	75	59	34.5	34	10	–	–	–	–	1	12	4	M10	5	3
32	115	90	70	43.2	42.7	12	–	–	–	–	2	15	4	M12	6	3
40	120	95	75	49.1	48.6	12	–	–	–	–	2	15	4	M12	6	3
50	130	105	85	61.1	60.5	14	–	–	–	–	2	15	4	M12	6	3
65	155	130	110	77.1	76.3	14	–	–	–	–	2	15	4	M12	6	4
80	180	145	121	90	89.1	14	–	–	–	–	2	19	4	M16	6	4
90	190	155	131	102.6	101.6	14	–	–	–	–	2	19	4	M16	6	4
100	200	165	141	115.4	114.3	16	–	–	–	–	2	19	8	M16	7	4
125	235	200	176	141.2	139.8	16	–	–	–	–	2	19	8	M16	7	4
150	265	230	206	166.6	165.2	18	–	–	–	–	2	19	8	M16	7	5
175	300	260	232	192.1	190.7	18	–	–	–	–	2	23	8	M20	7.5	5
200	320	280	252	218	216.3	20	–	–	–	–	2	23	8	M20	8.5	6
225	345	305	277	243.7	241.8	20	–	–	–	–	2	23	12	M20	9	6
250	385	345	317	269.5	267.4	22	–	–	–	–	2	23	12	M20	10	6
300	430	390	360	321	318.5	22	–	–	–	–	3	23	12	M20	10	6
350	480	435	403	358.1	355.6	24	–	–	–	–	3	25	12	M22	12	7
400	540	495	463	409	406.4	24	–	–	–	–	3	25	16	M22	12	7
450	605	555	523	460	457.2	24	40	495	500	5	3	25	16	M22	12	7
500	655	605	573	511	508	24	40	546	552	5	3	25	20	M22	12	7
550	720	665	630	562	558.8	26	42	597	603	5	3	27	20	M24	12	7
600	770	715	680	613	609.6	26	44	648	654	5	3	27	20	M24	12	7
650	825	770	735	664	660.4	26	48	702	708	5	3	27	24	M24	12	7
700	875	820	785	715	711.2	26	48	751	758	5	3	27	24	M24	12	7
750	945	880	840	766	762	28	52	802	810	5	3	33	24	M30	12	7
800	995	930	890	817	812.8	28	52	854	862	5	3	33	24	M30	13	8
850	1045	980	940	868	863.6	28	54	904	912	5	3	33	24	M30	13	8
900	1095	1030	990	919	914.4	30	56	956	964	5	3	33	24	M30	13	8
1000	1195	1130	1090	1021	1016	32	60	1058	1066	5	3	33	28	M30	14	9
*(1100)	1305	1240	1200	1123	1117.6	32	–	–	–	–	3	33	28	M30
*1200	1420	1350	1305	1225	1219.2	34	–	–	–	–	3	33	32	M30
*1350	1575	1505	1460	–	1371.6	34	–	–	–	–	3	33	32	M30
*1500	1730	1660	1615	–	1524	36	–	–	–	–	3	33	36	M30

 

This flange is available in a comprehensive range of sizes and pressure ratings to accommodate diverse piping system requirements. Our manufacturing capabilities allow us to produce both standard and custom dimensions.

Available Sizes: Wide range from small bore to large diameter

Pressure Ratings: Multiple pressure classes available (Class 150, 300, 600, 900, 1500, 2500, and PN ratings)

Connection Types: Suitable for welding, threading, or slip-on connections depending on flange type

For detailed dimension tables and technical drawings, please contact our technical support team. We can provide comprehensive dimensional specifications according to your required standard (ASME, EN, DIN, JIS, etc.).

Applications

This flange is ideal for use in:

• Oil & Gas Industry: Upstream, midstream, and downstream applications
• Chemical & Petrochemical: Process piping, reactors, and storage systems
• Power Generation: Conventional and renewable energy facilities
• Water Treatment: Municipal and industrial water systems
• Pharmaceutical: Sanitary process applications
• Food & Beverage: Hygienic piping systems
• Marine & Offshore: Shipbuilding and offshore platforms
• General Industry: Manufacturing, HVAC, and building services

Quality Assurance

We maintain the highest standards of quality control throughout the manufacturing process:

• ISO 9001:2015 certified manufacturing facility
• 100% material traceability with heat number tracking
• Comprehensive testing including chemical analysis, mechanical testing, and non-destructive examination
• Third-party inspection available (TPI, LPI, SGS, BV, etc.)
• Complete documentation package including MTC 3.1, test certificates, and dimension reports

FAQ

1. What materials are used for SUS F304 50A Lapped Joint?

Our SUS F304 50A Lapped Joint is manufactured from high-quality stainless steel grades including F304, F304L, F316, F316L, and other equivalent materials according to international standards. Material certificates are provided with each order.

2. What standards does this flange comply with?

This flange is manufactured in compliance with major international standards including ASME B16.5, ASME B16.47, EN 1092-1, DIN standards, JIS B2220, and HG/T standards. We can provide third-party inspection certificates upon request.

3. What is the delivery time?

Standard sizes are typically available from stock with 3-7 days delivery. Custom orders require 15-30 days depending on specifications and quantity. Rush orders can be accommodated with additional coordination.

4. Can you provide custom dimensions?

Yes, we offer custom manufacturing services. We can produce flanges according to your specific drawings and requirements. Our engineering team can also assist with design optimization.

5. What quality certifications do you provide?

We provide comprehensive documentation including Material Test Certificates (MTC), Third-Party Inspection Reports (TPI), Dimension Reports, and Pressure Test Certificates. All products comply with international quality standards.

Why Choose Our Flanges?

With decades of experience in manufacturing industrial piping components, we have established ourselves as a trusted supplier of high-quality flanges worldwide. Our commitment to excellence is reflected in:

• Technical Expertise: Experienced engineering team providing technical support and custom solutions
• Manufacturing Excellence: State-of-the-art facilities with advanced CNC machining and testing equipment
• Quality Focus: Rigorous quality control at every stage from raw material to finished product
• Customer Service: Responsive support team ensuring smooth order processing and after-sales service
• Competitive Pricing: Direct manufacturer pricing with no intermediary markups
• On-Time Delivery: Efficient production planning and reliable logistics partnerships