Drip Ring Flange, Vent Ring Flange Exporter
Bleed rings, also known as drip rings or vent rings, are circular plates with radial tapped holes, typically installed between flanges to allow for venting, draining, or bleeding of pipeline fluids. These rings are commonly used in conjunction with valves, pressure gauges, or other instrumentation to enhance system safety and facilitate maintenance. Made from various materials like carbon steel, stainless steel, and alloys, bleed rings are suitable for high-pressure and high-temperature applications. They are essential in industries such as oil and gas, petrochemicals, power generation, and more.
Ample Alloys is a trusted name in the manufacturing and supply of high-quality bleed rings, drip rings, and vent rings. With decades of experience, we pride ourselves on delivering precision-engineered products that meet the most demanding industry standards, including ASME, API, ANSI, and EN specifications. We are committed to providing tailored solutions with customizable sizes, tapping configurations, and material grades to suit your unique project needs. Our global clientele trusts us for our commitment to quality, timely delivery, and competitive pricing. We are your reliable partner for superior bleed, drip, and vent rings.
Flange bleed ring, Drip ring fitting, Stainless steel, Carbon steel, Alloy Steel bleed ring, Pipeline bleed ring, High-pressure bleed ring, Bleed ring with tapping holes, Flanged bleed ring, Vent and drain flange ring, Bleed ring for oil and gas, petrochemicals
ASME/ANSI B16.5 Vent Ring Flange
Size Range
15mm ( 1/2" NPS ) up to 600mm ( 24" NPS ), For 2500# in sizes from NPS 1/2 to NPS 12
Flange Face Type
FF—Flat Face, RF—Raised Face, FM—Female Face, M—Male Face, T—Tongue Face, G—Groove Face, RJ—Ring Joint.
Stainless Steel
ASTM A182 F 304, 304L, 304H, 316, 316L, 316H, 317, 317L, 321, 321H, 310, 310S, 347, 904L, etc.
Standards / Dimension
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN
Carbon Steel
ASTM A105/A105N (SA105N), LTCS A350 LF2, A694
Alloy Steel
ASTM A182 / SA182 - F1 / F5 / F9 / F11 / F12 / F22 / F91
Pressure Class
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64.
Duplex & Super Duplex
ASTM A182 / ASME SA182 - S31803, S32205, 2205, S32750, S32760, S32950, 2507.
MTC
EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103
| NPS | ID | OD by Pressure Class | ||||
|---|---|---|---|---|---|---|
| 150 | 300 | 600 | 900 | 1500 | ||
| 1 | 28.6 | 63.5 | 69.9 | 69.9 | 76.2 | 76.2 |
| 1½ | 41.3 | 82.6 | 92.1 | 92.1 | 95.3 | 95.3 |
| 2 | 54 | 101.6 | 108 | 108 | 139.7 | 139.7 |
| 2½ | 63.5 | 120.7 | 127 | 127 | 161.9 | 161.9 |
| 3 | 79.4 | 133.4 | 146.1 | 146.1 | 165.1 | 171.5 |
| 4 | 104.8 | 171.5 | 177.8 | 190.5 | 203.2 | 206.4 |
| 6 | 155.6 | 219.1 | 247.7 | 263.5 | 285.8 | 279.4 |
| 8 | 203.2 | 276.2 | 304.8 | 317.5 | 355.6 | 349.3 |
| 10 | 257.2 | 336.6 | 358.8 | 396.9 | 431.8 | 431.8 |
| 12 | 304.8 | 406.4 | 419.1 | 450.9 | 492.1 | 514.4 |
Drip Ring Flange Standards
Drip ring flanges are designed and manufactured to comply with various international standards to ensure high-quality performance and compatibility with piping systems. Common standards for drip ring flanges include:
- ASME/ANSI Standards (American):
- ASME B16.5 – Pipe Flanges and Flanged Fittings (NPS 1/2" to 24").
- ASME B16.47 – Large Diameter Steel Flanges (Series A & B, NPS 26" to 60").
- ASME B16.36 – Orifice Flanges.
- ASME B16.48 – Line Blanks (Spectacle, Spade, and Spacer Flanges).
- ANSI B16.1 – Cast Iron Flanges and Flanged Fittings.
- ANSI B16.42 – Ductile Iron Pipe Flanges and Flanged Fittings.
- ISO Standards (International)
- ISO 7005-1 – Steel Flanges for General Applications.
- ISO 7005-2 – Cast Iron Flanges.
- ISO 7005-3 – Copper Alloy Flanges.
- EN Standards (European)
- EN 1092-1 – Steel Flanges.
- EN 1092-2 – Cast Iron Flanges.
- EN 1092-3 – Copper Alloy Flanges.
- EN 1092-4 – Aluminium Alloy Flanges.
- DIN Standards (German)
- DIN 2527 – Blind Flanges.
- DIN 2576 – Slip-On Flanges (PN 10).
- DIN 2633 – Weld Neck Flanges (PN 16).
- DIN 2634 – Weld Neck Flanges (PN 25).
- DIN 2635 – Weld Neck Flanges (PN 40).
- JIS Standards (Japanese)
- JIS B2220 – Steel Pipe Flanges.
- GOST Standards (Russian)
- GOST 12820 – Flat Flanges for Steel Pipe Joints.
- GOST 12821 – Steel Welded Flanges for High-Pressure Applications.
- GOST 33259 – Flange Connections for Industrial Equipment and Pipelines.
- BS Standards (British)
- BS 4504 – Circular Flanges for Pipes, Valves, and Fittings.
- BS 10 – Specification for Flanges and Bolting.
- API Standards (Oil & Gas)
- API 6A – Wellhead and Christmas Tree Equipment Flanges.
- API 605 – Large-Diameter Carbon Steel Flanges (merged into ASME B16.47 Series B).
- AWWA Standards (Waterworks)
- AWWA C207 – Steel Ring Flanges for Waterworks Service.
- MSS Standards (Manufacturer's Standardization Society)
- MSS SP-44 – Steel Pipe Flanges (merged into ASME B16.47 Series A).
- MSS SP-51 – Flanges for Glass-Lined Equipment.
- Material-Specific Standards (ASTM)
- ASTM A105 – Carbon Steel Forged Flanges.
- ASTM A182 – Alloy and Stainless Steel Forged Flanges.
- ASTM A350 – Carbon and Low-Alloy Steel Flanges for Low-Temperature Service.
- ASTM A694 – High-Strength Carbon and Alloy Steel Flanges for High-Pressure Applications.
- Other Regional and Specialized Standards
- KS B1511 – Korean Standard Flanges.
- NF E29-206 – French Standard Flanges.
- SANS 1123 – South African Standard for Steel Flanges.
Why Ample Alloys For Bleed Ring Flange!
Partner with Ample Alloys for your bleed ring flange needs and experience unmatched reliability and expertise.
Material Versatility
We provide bleed rings in a wide range of materials, including carbon steel, stainless steel, and exotic alloys, to cater to diverse industrial requirements.
Customization Options
Tailored solutions are available, including custom sizes, tapping hole configurations, and material grades, to meet specific project needs.
Global Reputation
Trusted by industries worldwide, we have built a reputation for precision-engineered products and exceptional customer service.
Competitive Pricing
Ample Alloys provides high-quality bleed ring flanges at market-competitive prices, offering value without compromising quality.
A drip ring flange is used to prevent fluid leakage by collecting and directing drips away from the pipeline. It is often used in applications where controlled drainage is essential.
A vent ring flange is used to release trapped gases or pressure from the pipeline system safely, ensuring operational safety and preventing overpressure situations.
These flanges are widely used in industries like oil and gas, petrochemicals, power generation, water treatment, and chemical processing.
