
PFA Falre Cap
Feature: Ensures Ultra-High Purity: Maintains integrity in the most sensitive environments. Delivers Leak-Free Reliability: Precision-sized for a perfect fit with flared-end fittings. Offers Versatile Sealing: Functions as both a temporary dust plug and a permanent, pressure-tight seal when assembled.
Product Introduction
PFA flare cap is a plastic cover used for sealing and protecting flange connections, mainly applied in ultrapure fluid delivery systems, semiconductor equipment, chemical pipelines, and analytical instruments.
Product advantages
Corrosion Resistance
Can resist strong acids, alkalis, and solvents for long periods, with a service life of over 5 years.
High Purity
Made of PFA resin with a purity of up to 99.9%, it does not contaminate the conveyed medium.
High Dimensional Accuracy
Fully automated injection molding, with dimensional tolerances controlled within ±0.05mm.


Product Parameter
| PFA pare No. | Flare size | A | B |
| JCAP4 | 1/4" | 0.71 | 0.39 |
| JCAP6 | 3/8" | 0.84 | 0.53 |
| JCAP8 | 1/2" | 0.92 | 0.68 |
| JCAP12 | 3/4" | 1.04 | 0.93 |
| JCAP16 | 1" | 1.2 | 1.26 |
| JCAP20 | 1-1/4" | 1.77 | 1.57 |
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