Spiral Wound Gasket EN 1514-2 PN16 Graphite Filled

Description

1. Product Overview

Spiral Wound Gasket EN 1514-2 PN16 Graphite Filled is a high-performance metal-reinforced sealing ring engineered for flanged joints in pressure piping and process equipment. Primarily used to seal static connections in oil & gas, petrochemical, power generation, water treatment and chemical processing plants, it combines a corrugated metal winding with expanded graphite filler to deliver reliable, repeatable sealing across wide temperature and pressure ranges. The key value proposition is exceptional conformability and recovery—maintaining leak-tight performance under thermal cycling, vibration and flange imperfections—reducing downtime and gasket replacement frequency. As a standardized EN 1514-2 PN16 product, it is strategically important for procurement and engineering teams seeking compliant, low-risk sealing solutions for PN16-rated systems in global projects.

2. Key Specifications & Technical Characteristics

• Standard: EN 1514-2 (flange gaskets for PN-type flanges).

• Type: Spiral wound gasket, graphite-filled with metal winding.

• Metal winding material: Stainless steel 316L (standard); alternatives: 304, 321, Inconel on request.

• Filler material: Flexible expanded graphite, high-purity (>99% carbon) grade.

• Reinforcing inner/outer ring: Carbon steel (standard) or stainless steel option available.

• Nominal pressure rating: PN16 (suitable for ANSI/DIN equivalent service within specified limits).

• Temperature range: typical service -200°C to +550°C (application dependent, verify for oxidizing atmospheres).

• Chemical compatibility: Excellent for hydrocarbons, steam, oils, many acids and alkaline services (consult compatibility matrix for aggressive oxidizers).

• Thickness range: standard 3 mm to 6 mm (custom thicknesses available).

• Facing/finish: Metal winding corrugation optimized for sealing; graphite density and wrapping ensure conformability.

• Dimensional tolerances: manufactured to EN flange dimensions; API/DIN/ANSI sizes produced to order.

• Surface pressure capability: effective at low to moderate gasket stress due to graphite fill recovery.

• Packaging: bulk palletized; wooden crates for overseas shipments; protective inner wrap to prevent moisture/contamination.

• Shelf life: graphite-filled gaskets are stable with indefinite shelf life if stored dry and protected from mechanical damage; recommended storage indoors, away from direct sunlight and oils.

• Documentation: supplied with material certificates (EN 10204 3.1 on request), dimensional drawings, and handling/installation guidelines.

3. Core Industrial Applications

• Industries: Oil & gas (upstream, midstream, downstream), petrochemical, chemical processing, power generation (steam and condensate systems), water & wastewater, HVAC and marine.

• Use cases: flange joints on piping, heat exchangers, pressure vessels, compressors, pumps and valves operating at PN16 rating; replacement for older non-compliant gaskets during maintenance turnarounds; critical sealing in thermally cycled or vibration-prone assemblies.

• Performance advantages: graphite filler offers superior conformability to flange face irregularities and maintains sealing after bolt relaxation, while the metal winding provides structural stability and pressure retention. This combination reduces leak incidents versus pure soft gaskets and outperforms low-grade PTFE or rubber options in high-temperature and chemically aggressive services.

• Operational benefits: extends mean time between maintenance, lowers total cost of ownership by reducing unplanned shutdowns, and simplifies inventory by providing a standardized, EN-compliant sealing option.

4. Competitive Advantages

• Quality consistency: manufactured under controlled processes with traceable material certifications and dimensional inspection to ensure batch-to-batch uniformity.

• Supply reliability: sustained production capacity with forward planning for project-level deliveries and safety stock to support MRO and EPC timelines.

• Logistics capability: palletized bulk shipments, export-ready packaging, and proven container loading plans for 20’/40’ sea freight; door-to-door options available through partner carriers.

• Price competitiveness: designed for cost-effective lifecycle performance—lower replacement frequency offsets modest unit cost premium versus commodity gaskets. Volume pricing and long-term supply contracts available for large projects.

• Sustainability: graphite filler and stainless steel winding enable long service life, reducing material turnover. Options for recycled packaging and supplier environmental data on request.

• Technical support: installation instructions, torque/bolt stress recommendations, chemical compatibility charts, and failure-analysis support; engineering consultation available for critical applications.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): BULK 20 MT.

• Loading capacity: standard container loading per container (MT) depends on gasket size/bulk packing; typical approximations:

  • 20’ GP container: up to 20–22 MT (packed, palletized bulk subject to volume constraints).

  • 40’ HC container: up to 24–26 MT (subject to packing density and gasket geometry).
    Exact loading plan provided per order based on gasket dimensions and packing method.

• Lead times: project-dependent; standard lead time 4–8 weeks for production after order confirmation and material approval, expedited options available.

• Payment & terms: negotiable—standard industrial terms include letter of credit, T/T, or commercial invoice with agreed milestones.

• Warranty: manufacturing defect warranty; installation and service conditions apply.

• Documentation included: commercial invoice, packing list, certificate of conformity/material certificate on request, dimensional drawings, and installation guidelines.