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Insulating Flange Kit
QS Flange: Suzhou Insulating Flange Kit
Insulating flange kit: gasket, sleeves and washers in Type E and Type F patterns for electrical isolation and corrosion control at bolted flange joints.
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One-Minute Overview
- One-piece insulating gasket plus sleeves and washers, boxed as a complete joint set.
- Type E gaskets carry bolt holes for full-face joints; Type F seals on the raised face ring.
- Blocks current flow across the joint for cathodic protection and corrosion control.
- Gasket materials cover phenolic and glass-epoxy grades for general service.
An insulating flange kit turns a bolted flange joint into an electrical break. The one-piece insulating gasket sits between the flange faces, sleeves line the bolt holes and washers isolate the fasteners, so cathodic protection current cannot cross the joint and galvanic corrosion is controlled. Kits are supplied as complete boxed sets for one joint.
Two gasket patterns cover the usual flange facings. Type E is a full-face gasket with bolt holes, self-centering on the flange; Type F is a ring gasket that seals on the raised face and is positioned by the bolt circle. Phenolic and glass-epoxy gasket materials cover general service temperatures and pressures.
FAQ
Q1. What is the difference between Type E and Type F gaskets in these kits?
Type E is a full-face gasket with bolt holes that self-centers on the flange; Type F is a ring gasket that seals on the raised face and is positioned by the bolt circle. Pick the type to match the flange facing you are isolating — full-face joints take Type E, raised-face joints take Type F.
Q2. Do I need to shop for sleeves and washers separately?
No — the kit is boxed as a complete set for one joint: the one-piece insulating gasket plus the sleeves and washers that line the bolt holes and isolate the fasteners. Everything arrives matching, so the electrical break is complete on the first assembly instead of after a second parts order.
Q3. Can a gasket really stop electricity from crossing a flange?
On its own it only blocks the faces; the sleeves and washers finish the job. Together they turn the bolted joint into an electrical break, so cathodic protection current cannot cross and galvanic corrosion at the joint is controlled. Phenolic and glass-epoxy grades cover general service temperatures and pressures.
Q4. What payment terms do you accept?
T/T, L/C at sight and other internationally accepted terms. The exact terms are agreed with you before production starts, because the payment schedule has to match the order value, the shipping method and the delivery schedule you need — which is also why we confirm them up front rather than after shipment.
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