Can a JIC plug with GW UNF carbon steel, type VKA be used repeatedly without replacing the 37Â° cone seal after disassembly?

No. A JIC plug with GW UNF carbon steel, type VKA Format that seals on the internal 37Â° cone must not be reassembled and used repeatedly without replacing the 37Â° cone seal after disassembly. The metal sealing surfaces and any captive or separate elastomer/soft-seat insert are designed to form a precise metal-to-metal or metal-to-soft-seat cone seal. Once disassembled, the cone face and/or the soft sealing element can suffer microscopic scratches, deformation, or contamination that compromise sealing integrity and lead to leaks or premature wear. Best practice: inspect mating surfaces after disassembly, replace the cone seal or soft-seat insert as specified by the manufacturer, and follow proper torque/assembly procedures. This ensures reliable, leak-free performance and maintains safety and system integrity.

Does a JIC plug with GW UNF carbon steel, type VKA require a new 37Â° cone seal after each disassembly?

No. A JIC plug with GW UNF carbon steel, type VKA (JIC 37Â° plug with internal UNF thread, sealing on the internal 37Â° cone) uses the metal-to-metal 37Â° cone for sealing. If the cone and mating surface are undamaged, clean and inspect them after disassembly and reassemble without replacing the cone. Replace the cone or mating surface only if you find dents, scratches, galling, corrosion, or loss of the 37Â° seating geometry; then fit a new 37Â° cone to ensure leak-free sealing.

Is the 37Â° cone seal reusable on a JIC plug with GW UNF carbon steel, type VKA after removal?

Yes. the 37Â° cone seal on a JIC plug with GW UNF carbon steel, type VKA can be reused after removal, but only if the sealing surfaces remain undamaged, clean and free of corrosion, nicks or deformation. Reuse is acceptable when: - The internal 37Â° cone and mating seat show no visible wear, gouges, burrs or corrosion. - The cone surface retains its original finish and geometry (no flattening or rounding). - Threads (GW UNF) are intact, not stretched or stripped, and fit correctly without play. - Proper cleaning and inspection (magnification if needed) confirm no defects. - Reassembly uses correct torque and any recommended anti-seize or thread lubricant per manufacturer guidance. Do not reuse the cone seal if there is any doubt about surface integrity or if the fitting previously leaked under pressure; in such cases replace the plug to ensure reliable sealing and safety.

JIC plug with GW UNF carbon steel, type VKA

Additional information

Material	CS – steel (cast iron)

JIC 37° plug with internal UNF thread (sealing on the internal 37° cone). Material: carbon steel, galvanized.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HJ-VKA-07	Plug with GW JIC 7/16"-20	-	450	In stock	Enquiry
HJ-VKA-08	Plug with GW JIC 1/2"-20	-	350	In stock	Enquiry
HJ-VKA-09	Plug with GW JIC 9/16"-18"	-	350	In stock	Enquiry
HJ-VKA-12	Plug with GW JIC 3/4"-16	-	350	In stock	Enquiry
HJ-VKA-14	Plug with GW JIC 7/8"-14	-	350	In stock	Enquiry
HJ-VKA-17	Plug with GW JIC 1.1/16"-12"	-	350	In stock	Enquiry
HJ-VKA-21	Cap with GW JIC 1.5/16"-12"	-	290	In stock	Enquiry
HJ-VKA-26	Cap with GW JIC 1.5/8"-12	-	240	In stock	Enquiry
HJ-VKA-30	Cap with GW JIC 1.7/8"-12	-	240	In stock	Enquiry