Καπάκι

Pipe Caps act as protective device and are designed to protect pipe ends of various shapes. The main purpose of using pipe caps is to waterproof the connections. They are also used to close the the ends of hydraulic or pneumatic pipes and tubes. They are used in the plumbing apparatus of domestic, commercial and industrial water supply lines, machinery and processing equipment etc. They are also fitted on water pump lines with the sole purpose of removing air blocks. Pipe caps are highly demanded as an important category of pipe fittings.Steel Pipe Cap is also called Steel Plug, it usually welded to the pipe end or mounted on the external thread of the pipe end to cover the pipe fittings. To close the pipeline so the function is the same as the pipe plug.

 

Types of Pipe Caps:

καλύμματα σωλήνων έρχονται σε πολλούς διαφορετικούς τύπους και ο τύπος ποικίλλουν ανάλογα με την εφαρμογή. Ωστόσο, καλύμματα σωλήνων διαφέρουν επίσης ανάλογα με την κατασκευή τους χαρακτηριστικά και είναι πολύ σημαντικό για τον αγοραστή να γνωρίζει το σωστό τύπο του καλύμματος του σωλήνα. Με βάση την κατασκευή, καλύμματα σωλήνων είναι των ακόλουθων τύπων:

Σπείρωμα Καπάκια:
These caps are female threaded. The thread can be either straight or tapered, also referred as NPT. Generally, caps have a female thread and plugs have a male thread.

Κωνικούς Caps:
These caps have tapered sides, which offers a close fit. Some of these fittings can be used either as a cap or a plug. Tapered caps and plugs are multi-functional and go well with male and female NPT threads, straight tubes and bars; and male straight threads. These fittings have a tapered body to provide a secure and firm friction fit while facilitating easy removal. The tapered caps are designed to provide protection for all internal and external, threaded and non-threaded fittings against damage, dirt or moisture that can occur.

Anti-Roll Caps:
These caps are round in shape with a slightly square end. This prevents pipes and tubes from rolling.

BW Steel Cap:

BW steel pipe cap is the butt weld type of fittings, connecting methods is to use butt welding. So BW cap ends in beveled or plain.

Socket Weld Steel Pipe Cap

Socket weld cap is to connecting pipes and caps by insert the pipe into the access shoulder area of the socket weld cap.

 

Pipe Cap Material Grades

Stainless Steel Pipe Cap	ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Carbon Steel Pipe Cap	ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Low Temperature Carbon Steel Pipe Cap	ASTM A420 WPL3, A420 WPL6
Alloy Steel Pipe Cap	ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
Duplex Pipe Cap	ASTM A 815, ASME SA 815 UNS NO S31803, S32205. Werkstoff No. 1.4462
Nickel Alloy Pipe Cap	ASTM / ASME SB 336 UNS 2200 (νικέλιο 200), UNS 2201 (νικέλιο 201), UNS 4400 (Monel 400), UNS 8020 (ΚΡΑΜΑ 20/20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276)