Home›Products›Seals, Mechanical Seals & Packing · 密封与填料›Spiral Wound & Graphite Composite Gasket (金属缠绕垫片)
TECHNICAL SCHEMATIC / 结构示意图 — 本条为目录条目，尚无经核验的实拍图。该图按类别原创绘制，仅示意结构，非产品照片、不作为验收依据；实拍图与尺寸图随报价单提供 [待补实拍]。
Seals, Mechanical Seals & Packing · 密封与填料HS 8484.10SKU YB-IND-008RFQ · 询价条目
Spiral Wound & Graphite Composite Gasket (金属缠绕垫片)
A flange gasket made of alternating metal and filler strip, used on steam, oil and process piping where a plain rubber gasket would creep.
价格、起订量、交期与关税 / Commercial terms
Price on request（按询价确认）· MOQ by RFQ · Lead time confirmed per order · Pakistan duty per current 8-digit PCT [待核验]。
本页不发布未经确认的 FOB 价格、MOQ 数字、库存状态或税率；一切以正式报价单 / PI 为准。
Price on request（按询价确认）· MOQ by RFQ · Lead time confirmed per order · Pakistan duty per current 8-digit PCT [待核验]。
本页不发布未经确认的 FOB 价格、MOQ 数字、库存状态或税率；一切以正式报价单 / PI 为准。
资料口径：本条规格为公开标准型号的工程参数；产地为公开产业集群信息（典型供货产业带），实际厂家、原产地证与材质证明以报价单为准 [待确认]。本页不声称任何进口排名、需求热度、市场份额或库存。
At a glance · 快速对照
简要用途 / Brief useA flange gasket made of alternating metal and filler strip, used on steam, oil and process piping where a plain rubber gasket would creep.
典型应用场景 / Typical applicationsSteam & condensate lines · Refinery & process piping · Boiler and heat-exchanger flanges · Pump discharge flanges
供应与产地 / Typical sourcing base典型供货产业带：浙江宁波、江苏常州、河北景县（橡塑密封产业带）。该产业带为公开产业集群信息；实际供货厂、产地与原产地证以报价单为准 [待确认]。
HS 归类 / Classification8484.10（国际 HS 6 位品目）；巴基斯坦 8 位 PCT 子目与当期税率由清关代理确认 [待核验]。
可筛选标签 / Filter tags
Key specifications · 关键规格参数
| Parameter | Specification |
|---|---|
| Type | Spiral wound with inner & outer ring (CGI / CGI type) |
| Nominal size | DN15-DN600, ASME / DIN / JIS flange tables |
| Pressure class | Class 150 / 300 / 600, PN10 / PN16 / PN40 |
| Winding | SS304 / SS316L strip |
| Filler | Flexible graphite / PTFE / mica |
| Thickness | 3.2 / 4.5 mm typical |
| Standard | ASME B16.20 / DIN EN 1514-2 dimensional interchange |
上表为标准型号 / 通用工程参数，用于选型比对；实际供货型号、公差、材质与等级以厂家数据表（datasheet）及正式 PI 为准 [待确认]。
Product detail · 详情说明
The winding metal resists blow-out, the filler does the sealing, and the outer ring centres the gasket in the bolt circle. Ordering requires the flange standard, nominal size, pressure class and filler — a DN50 PN16 gasket is not the same part as a 2-inch Class 150 gasket.
For steam and thermal cycling, flexible graphite filler is the usual choice; PTFE is specified for aggressive chemicals where graphite is unsuitable. Give the flange marking and media, and we map it to the correct standard and thickness.
选型与验收要点 / Selection & acceptance points
- Flange standard, size and pressure class mapped on the RFQ
- Graphite / PTFE / mica filler options for media compatibility
- Inner and outer ring construction for blow-out resistance
- Supplied against ASME B16.20 / EN 1514-2 envelope dimensions
Applications · 典型应用场景
Steam & condensate linesRefinery & process pipingBoiler and heat-exchanger flangesPump discharge flanges
Supply, origin & documents · 供应产地与单据
典型供货产业带 / Typical sourcing base典型供货产业带：浙江宁波、江苏常州、河北景县（橡塑密封产业带）。该产业带为公开产业集群信息；实际供货厂、产地与原产地证以报价单为准 [待确认]。
包装与装箱 / Packing
- 按型号与订单量确定，装箱单于出运前确认 / Confirmed on the packing list before shipment
可提供的文件 / Documents available on request
- 厂家数据表 (factory datasheet) on request
- 材质 / 检测证明 (material & test certificate) on request
- 商业发票、装箱单、提单 / 空运单、原产地证、HS 编码技术数据表（每单随附）。
Data basis & open items · 资料口径与待确认项
为什么纳入这个品类 / Why this category is listed
Sealing parts follow the HS 84 pump / rotating-equipment base. These are long-tail, specification-driven lines with no published SKU-level import ranking. 选入依据为品类覆盖，非进口量排名 [待核验]。
Sealing parts follow the HS 84 pump / rotating-equipment base. These are long-tail, specification-driven lines with no published SKU-level import ranking. 选入依据为品类覆盖，非进口量排名 [待核验]。
口径说明 / Scope: The figures above are HS 2-digit chapter totals or a national commodity group from official / intergovernmental trade statistics. They identify which industrial chapters are large in Pakistan's import basket; they do NOT give an import ranking, demand volume, market share or growth rate for any individual part listed on this page. UN Comtrade (calendar-year goods basis, US$56.5B) and PBS (fiscal-year basis, US$54.779B) use different scopes and must not be compared directly. 任何单品的进口排名、需求热度与精确数值均 [待核验]，需以 HS 8 位清关数据 / 采购记录为准。
本条明确待确认 / Explicitly open items
- 价格、数量阶梯、MOQ、交期与付款条件 → 以正式报价单 / PI 为准 [待业务确认]。
- 巴基斯坦 8 位 PCT 子目、当期关税与销售税 → 由清关代理按进口当日税则核验 [待核验]。
- 实际生产厂、品牌、原产地与材质 / 检测证明 → 以报价单和原产地证为准 [待确认]。
- 产品实拍图、尺寸图与批次检测报告 → 随询价提供 [待补实拍]。
- 单品进口排名、需求热度、市场份额与任何精确数值 → 本页不作声称 [待核验]。
Frequently Asked Questions
Send the part number, a photo of the nameplate / old part, or the machine model and required dimension. We reply with the applicable standard designation and a factory datasheet; the final specification is fixed on the proforma invoice.
Commercial invoice, packing list, certificate of origin, bill of lading or AWB, and an HS-coded technical datasheet. The HS 6-digit heading shown on this page is the international classification; your clearing agent confirms the Pakistan 8-digit PCT subheading and the duty rate applicable on the date of import.
No. The location named under 'Typical sourcing base' is a publicly known industrial cluster, given to help you understand the supply chain. The actual factory, country of origin and any mill / test certificate are confirmed in writing on the quotation and the certificate of origin. Treat it as [待确认] until then.
Not answered here?Ask the sales engineer for a datasheet, dimensional drawing, cross-reference or a mixed RFQ covering several lines.
💬 Ask on WhatsApp
