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Ningbo Kaxite Sealing Materials Co., Ltd.

Ningbo Kaxite Sealing Materials Co., Ltd. is based in Ningbo, Zhejiang Province, China. Kaxite is one of the biggest sealing and heat preservation products manufacturer in China. Kaxite supply the overall solution of Metal Gaskets, Non-metallic Gaskets, Braided Packings, Compressed Gasket Sheets. To assure create more valve for customers from all over the world.

Kaxite has been found and conformed according to ISO 9001, As a professional manufacturer and supplier, Kaxite can offer a widely range of sealing raw materials and products,more competitive price, prompt feedback, fast delivery time & keep the order updated. We promise Kaxite Gasket & Seals is your good choice.

The products are mainly applied in the industries of aviation, shipbuilding, petroleum chemical industry, foodstuff and medicine, with the good merits of heat preservation, heat insulation, seal and insulation.

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Product Category
Flange Insulation Gasket Kits
Flange Insulation Gasket Kits Complete flange isolation kits for oil, gas, water, refinery and chemical piping — including the insulation gasket, G10/G11 sleeves, insulating washers and steel washers. Available in Type D, Type E, Type F, and high-pressure SS core versions up to ANSI 2500# / API 15,000 PSI. Factory-direct pricing, MOQ 10 sets, free samples available.
Featured Products
Type D Flange Insulation GasketType D Flange Insulation Gaskets are suitable for RTJ flanges and can be produced according to ASME and API flange standards. The KXT-150 sealing gasket is an excellent alternative to Type D because the sealing element may be positioned anywhere between the I.D. of the gasket and the I.D. of the ring groove. Retainer materials: plain phenolic, G-7, G-10 and G-11.>Type D Flange Insulation Gasket
Cathodic Protection Flange Insulating GasketsCathodic protection flange insulating gaskets are used for controlling losses due to corrosion. They control stray electric currents in piping at oil, gas, water, refinery, chemical and power plants, to increase the effectiveness of cathodic protection systems. Available in Type E full-face, Type F ring gasket and Type D RTJ gasket. Type D produced to ASME and API standards.>Cathodic Protection Flange Insulating Gaskets
Flange Insulating Gasket SetsFlange Insulating Gasket Sets are used to solve the sealing and insulating problems of flanges, and to control losses due to corrosion and leakage of pipelines. They seal flanges and control stray electric currents in piping at oil, gas, water, refinery and chemical plants, to increase the effectiveness of cathodic protection systems.>Flange Insulating Gasket Sets
SS316/SS316L Core Flange Insulation Gasket KitSS Core Flange Insulation Gasket Kit — KXT-150 — includes the KXT-150 insulation gasket with stainless steel core bonded to G10 or G11 insulating laminate, G10 or G11 insulating sleeves, G10 or G11 insulating washers, and zinc-plated steel washers. The spring-energized Teflon seal is seated in a groove cut into the stainless steel core. For high-pressure service up to ANSI 2500# and API 15,000 PSI.>SS316/SS316L Core Flange Insulation Gasket Kit
Flange Insulation Gasket for High PressureKXT-150 flange isolating gasket utilizes a stainless steel core bonded with high-strength insulating laminate G10 or G11. A spring-energized Teflon seal seated in the stainless steel core provides high-confidence sealing and eliminates costly leaks. Seals and insulates raised face, full face and RTJ flanges up to ANSI 2500# and API 15,000 PSI.>Flange Insulation Gasket for High Pressure
Neoprene-Faced Phenolic GasketsNeoprene-Faced Phenolic Gaskets are standard flat isolating gaskets for oil and gas service. Soft neoprene rubber is factory-applied to both sides of a laminated phenolic retainer, giving an effective sealing surface. Max working temperature approximately +80 °C. Available in Type E full-face and Type F ring gasket. Dielectric strength 500 V/mil, compressive strength 25,000 psi.>Neoprene-Faced Phenolic Gaskets
Flange Insulation Sealing GasketsKXT-110 flange insulating sealing gaskets solve the sealing and insulating problems of flanges and control corrosion and leakage losses in pipelines. A rectangular sealing element in a unique groove provides near zero m and y factors — sealing without excessive bolt loads. Type E full-face and Type F ring-type available. Sealing elements: Teflon, Viton, EPDM, neoprene.>Flange Insulation Sealing Gaskets
Flange Insulation Gasket KitsKXT-120 flange insulation gasket kit uses G10 or G11 epoxy glass as the retainer and two seal elements overlapping and offsetting into two unique seal grooves. The seals seal without outside pressure, eliminating potential leak paths in the laminate. Sealing elements: Viton, EPDM, neoprene or spring-energized Teflon. Kit includes gasket, G10 sleeves, G10 washers and zinc-plated steel washers.>Flange Insulation Gasket Kits
Neoprene-Faced Phenolic Flange Insulation Gasket KitNFIK 603 Neoprene-Faced Phenolic Flange Insulation Gasket Kit seals and isolates water, gas and oil piping flanges up to +79 °C. Complete kit includes neoprene-faced phenolic gasket, Mylar® insulation sleeves and ZPS (zinc-plated steel) backing washers. Made to ANSI B16.5, AWWA C207, ASME B16.47, API 6A. Factory-direct from Kaxite.>Neoprene-Faced Phenolic Flange Insulation Gasket Kit
Type F Nitrile-Faced Phenolic Flange Insulation Gasket KitType F Nitrile Faced Phenolic Flange Insulation Gasket Kit (Style NFIK 605) is a raised-face flange insulation gasket built with a high-strength reinforced phenolic core compressed between two conformable nitrile (NBR) facing layers. The Type F design centers the gasket between the bolts, making it suitable for raised-face RF flanges up to ANSI Class 600. The kit is excellent for isolating flanges made of dissimilar metals and for preventing flange-face corrosion. The complete kit includes phenolic washers, steel washers and Mylar sleeves. Kaxite also supplies the related Type E and Type D flange insulation gasket kits for other flange configurations.>Type F Nitrile-Faced Phenolic Flange Insulation Gasket Kit
G10 with SS316L Core VCS Flange Insulation Gasket KitG10 with SS 316L Core VCS Flange Insulation Gasket Kit (Style FIK 600-VCS) is a "Very Critical Service" insulating gasket designed for electrical flange isolation and general sealing duty. The kit combines a G-10 or G-11 glass-reinforced epoxy body with an SS 316/316L metal core, making it suitable for raised-face, flat-face and RTJ flanges across all pressure classes, including API 15,000 psi. Beyond superior sealing and dielectric performance, the FIK 600-VCS isolates flanges made from dissimilar metals (mitigating galvanic corrosion) and reduces localized flange-face corrosion. Originally developed as a replacement for phenolic ring gaskets failing in RTJ flanges, the VCS was field-tested and approved by a major oil and gas company in 1981 and has since been installed in thousands of services worldwide.>G10 with SS316L Core VCS Flange Insulation Gasket Kit
Type D Phenolic Flange Insulation Gasket KitType D phenolic flange insulation gasket kit (Style FIK 600-D) is an insulating ring joint gasket machined to physically fit the specific ring groove of RTJ (Ring Type Joint) flanges. The central gasket is made from medium-weave fabric-strengthened phenolic or NEMA G-10 / G-11 glass-reinforced epoxy, dimensioned to ASME B16.20. Standard configurations are octagonal; oval RTJ profiles are available on special request. A made-to-order BX-type geometry with pressure ratings up to 15,000 PSI is also available. Kaxite supplies three material grades — plain phenolic (105 °C), NEMA G-10 (150 °C, standard) and NEMA G-11 (202 °C) — for electrical isolation of RTJ flanges in oil and gas, petrochemical and water transmission pipelines.>Type D Phenolic Flange Insulation Gasket Kit
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NACE · API · ISO 9001

China Flange Insulation Gasket Kit Manufacturer – Type D, Type E & VCS Grade for Cathodic Protection

Kaxite Sealing is a trusted flange insulation gasket kit manufacturer and flange isolation kit supplier in China. We offer Type D, Type E, VCS Very Critical Service kits, SS core gaskets, and neoprene faced phenolic gaskets for cathodic protection, corrosion prevention, and stray current isolation in oil & gas, chemical, marine, and water treatment industries. 10+ years of expertise, exporting to 60+ countries.

⬤ MOQ: 10 kits ⬤ Lead Time: 7‑15 days ⬤ FOB Ningbo / EXW / CIF ⬤ Custom Sizes & Materials ⬤ Free Sample
10+
Years Expertise
60+
Countries Served
VCS
Grade Available
ISO 9001
Certified Quality
NACE
SP0206 Compliant
API 6A
Flange Insulation
100%
Traceability (MTC)

Flange Insulation Solutions by Industry

Electrically isolate flanges for cathodic protection and corrosion control – choose the right kit for your application.

🛢️

Oil & Gas

Flange insulation gasket kits for pipelines, refineries, and offshore platforms – prevents galvanic corrosion and stray current.

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🧪

Chemical Processing

Corrosion‑resistant flange isolation kits for aggressive media, high temperatures, and pressure vessels.

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🚢

Marine & Offshore

Saltwater and corrosion‑resistant flange insulation kits with CCS approval for shipbuilding and offshore platforms.

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⚡

Power Generation

Flange isolation kits for cooling water systems, steam turbines, and heat exchanger piping.

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💧

Water & Wastewater

Dielectric flange insulation kits for corrosion control in water treatment and desalination plants.

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Custom OEM / ODM

Custom sizes, materials, and designs – Type D, Type E, and VCS grades to your drawing or specification.

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Why Choose Kaxite for Flange Insulation Kits?

  • ✅ NACE SP0206 & API 6A compliant designs
  • ✅ ISO 9001:2015 certified manufacturing
  • ✅ Type D, Type E, VCS Very Critical Service grades
  • ✅ G10, phenolic, PTFE, neoprene faced materials
  • ✅ Full kits include gasket, sleeves, washers, spacers
  • ✅ Custom sizes up to 2000mm diameter
  • ✅ MTC per EN 10204 3.1 – full traceability
  • ✅ Factory‑direct – competitive wholesale pricing
ISO 9001 NACE API 6A VCS

Technical Capabilities

  • 🔹 Flange Insulation Kits: DN15 to DN2000 (½" to 80")
  • 🔹 Gasket Materials: G10, phenolic, PTFE, neoprene faced
  • 🔹 Grades: Type D, Type E, VCS Very Critical Service
  • 🔹 Hardware: Insulating sleeves, washers, spacers
  • 🔹 Pressure: Up to Class 2500 (PN420)
  • 🔹 Temperature: -200°C to +260°C (grade dependent)
  • 🔹 Standards: ASME, DIN, JIS, BS, API
Full Custom OEM/ODM Rapid Proto

Frequently Asked Questions

Quick answers about flange insulation gasket kits – what buyers and engineers want to know.

Q: What is a flange insulation gasket kit?
A: A pre‑assembled set including gasket, insulating sleeves, washers, and spacers – designed to electrically isolate flanges for cathodic protection and corrosion control.
Q: What materials are available for flange insulation kits?
A: Phenolic, G10 epoxy fiberglass, PTFE, neoprene faced, and custom materials – with various pressure ratings and VCS grades.
Q: Do you offer VCS Very Critical Service kits?
A: Yes – we supply VCS grade flange insulation kits for critical applications requiring higher mechanical strength and dielectric performance.
Q: What is your typical lead time for flange insulation kits?
A: Standard kits ship in 7‑15 days. Custom orders take 15‑20 days. Express service available for urgent requirements.
Q: Do you provide material test reports and certificates?
A: Yes – we provide EN 10204 3.1 MTC with full traceability. Third‑party inspections (SGS, BV) are also supported.
Q: Can I get a sample before placing a bulk order?
A: Yes, free samples are available for evaluation. Contact our sales team with your size, material, and quantity requirements.
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Need Flange Insulation Gasket Kits at Factory Prices?

Tell us your flange size, pressure rating, and material requirements – we'll reply within 24 hours with a tailored quote and technical support.

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📞 +86-574-87527771 ✉️ [email protected] 💬 WhatsApp
🏭 Factory Direct ✅ ISO 9001 📦 MOQ: 10 kits 🚢 Fast Shipping
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News
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2026-10-09
Is fiberglass sleeving better than silicone sleeving?Fiberglass sleeving offers excellent heat resistance and mechanical durability, while silicone sleeving provides superior flexibility and moisture protection. This article compares their key performance characteristics, typical applications, and limitations to help you determine which sleeving is better suited for your specific requirements.
2026-10-08
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