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Industrial · SKU: AF6338110
316L Stainless Steel D-Ring Spiral Wound Gasket, 4 Inch, PN16, Pkg Qty 8
This 4-inch D-ring spiral wound gasket is engineered for PN16 flange connections in demanding industrial applications.
Volume Pricing - Buy More, Save More
| Quantity | Discount | Unit Price |
|---|---|---|
| 1 - 10 | - | $99.99 |
| 11 - 50 | -5% | $94.99 |
| 51+ | -10% | $89.99 |
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Quick Answer
How Buyers Should Evaluate 316L Stainless Steel D-Ring Spiral Wound Gasket, 4 Inch, PN16, Pkg Qty 8
This 4-inch D-ring spiral wound gasket is engineered for PN16 flange connections in demanding industrial applications. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.
Quick Spec Check
- Material: 316L Stainless Steel
- Size: 0.18 in
- Standards: Meets Industry Standards
Purchase Details
- Online price starts at $99.99.
- Minimum order quantity: 1 unit.
- Pack quantity: 8 / Each.
- Lead time: 2-3 weeks.
Use RFQ When
- Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
- Request support when fit, material, or substitute selection needs confirmation before order.
- Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.
Technical Specifications
| Material | 316L Stainless Steel |
| Size | 0.18 in |
| Standards | Meets Industry Standards |
| Connection Type | Flange |
| Reel Type | Not Applicable |
| Hose Capacity | Not Applicable |
| Mount Type | Not Applicable |
Full Description
Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.
Overview
This 4-inch D-ring spiral wound gasket is engineered for reliable sealing in high-pressure, high-temperature industrial piping systems. It is specifically designed for PN16 flange connections, indicating a pressure rating of approximately 232 PSI. The gasket's robust construction utilizes corrosion-resistant 316L stainless steel for both the winding metal and the inner and outer containment rings, with a flexible graphite filler. This combination delivers a superior seal that accommodates flange rotation and surface irregularities, making it a critical component for preventing leaks in demanding process environments.
Key Features
Engineered for PN16 pressure class service, approximately 232 PSI Constructed entirely from 316L stainless steel for excellent corrosion resistance Features both inner and outer D-shaped containment rings for added stability The inner ring prevents filler extrusion into the pipeline The outer ring centers the gasket and improves bolt load distribution Flexible graphite filler provides a tight seal and accommodates thermal cycling Manufactured to meet recognized industry standards for dimensional consistency and material quality Suitable for a wide range of temperatures and aggressive media
Specifications
Material: 316L Stainless Steel (winding and rings), Graphite (filler) Nominal Pipe Size: 4 Inch Pressure Class: PN16 Gasket Thickness: 0.18 inches Design: Spiral Wound with Inner and Outer Containment Rings (D-Ring Style) Standards: Manufactured to Comply with HG/T20610-2009 and D5525 Specifications Connection Type: Flange Package Quantity: 8 Pieces
Applications
This gasket is ideal for creating leak-tight seals in flange connections across numerous industries. Primary applications include chemical and petrochemical processing, oil and gas pipelines and refineries, power generation facilities, and industrial heating systems. It is commonly used on pumps, valves, heat exchangers, and vessel manways where sustained pressure and temperature resistance are required.