Tube plugs

KRAIS Tube Expanders

Key Features

Ideal for sealing leaky tubes in condenser and heat exchangers. It is recommended to use our ORTC – one revolution tube cutter to puncture the tube to ensure that pressure can not build up in the tube and cause the plug loosen or blow out.

One Piece Tube Plugs

KRAIS Tube Expanders

Tube OD: 3/8 inch (9,5 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
15-22 0,176 4,47 0.388 9,86 TP-1-**

Tube OD: 1/2 inch (12,7 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 0,176 4,48 0.388 9,87 TP-1-**
15-22 0,301 7,65 0,513 13,00 TP-2-**

Tube OD: 5/8 inch (15,8 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 0,301 7,66 0,513 13,01 TP-2-**
15-22 0,426 10,82 0,638 16,20 TP-3-**

Tube OD: 3/4 inch (19,05 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 0,426 10,83 0,638 16,21 TP-3-**
15-22 0,551 14,00 0,763 1938 TP-4-**

Tube OD: 7/8 inch (22,22 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 0,551 14,01 0,763 1939 TP-4-**
15-22 0,676 17,17 0,888 22,56 TP-5-**

Tube OD: 1 inch (25,4 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 0,676 17,18 0,888 22,57 TP-5-**
15-22 0,801 20,35 1,013 25,73 TP-6-**

Tube OD: 1/1-8 (28,5 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 0,801 20,36 1,013 25,74 TP-6-**
15-22 0,926 23,52 1,138 28,9 TP-7-**

Tube OD: 1-1/4 inch (31,7 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 0,926 23,53 1,138 28,10 TP-7-**
15-22 1,015 25,78 1,263 32,08 TP-8-**

Tube OD: 1-3/8 inch (34,9 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 1,015 25,79 1,263 32,09 TP-8-**
15-22 1,176 29,87 1,388 35,87 TP-9-**

Tube OD: 1-1/2 inch (38,1 mm)

TUBE GAUGE A B TUBE PLUGE
[inch] [mm] [inch] [mm]
11-14 1,176 29,88 1,388 35,88 TP-9-**
15-22 1,301 32,66 1,513 38,93 TP-10-**

** – Specify Material: Al.- Aluminium, S= Steel, Ss= Stainless Steel , B= Brass, M= Monel

Two Piece Tube Plugs

KRAIS Tube Expanders

Tube OD: 5/8 inch (15,8 mm)

TUBE SIZE BRASS CARBON STEEL STAINLESS STEEL
BWG I.D. Ring Pin Ring Pin Ring Pin
13 0,44 T8TP445BR TP3BP T8TP445CS TP3CSP T8TP445SS TP3SSP
14 0,46 T8TP469BR TP3BP T8TP469CS TP3CSP T8TP469SS TP3SSP
15 0,48 T8TP491BR TP3BP T8TP491CS TP3CSP T8TP491SS TP3SSP
16 0,5 T8TP505BR TP4BP T8TP505CS TP4CSP T8TP505SS TP4SSP
17 0,51 T8TP519BR TP4BP T8TP519CS TP4CSP T8TP519SS TP4SSP
18 0,53 T8TP537BR TP4BP T8TP537CS TP4CSP T8TP537SS TP4SSP
19 0,54 T8TP551BR TP4BP T8TP551CS TP4CSP T8TP551SS TP4SSP
20 0,56 T8TP571BR TP4BP T8TP571CS TP4CSP T8TP571SS TP4SSP
21 0,56 T8TP571BR TP4BP T8TP571CS TP4CSP T8TP571SS TP4SSP
22 0,57 T8TP571BR TP4BP T8TP571CS TP4CSP T8TP571SS TP4SSP

Tube OD: 3/4 inch (19 mm)

TUBE SIZE BRASS CARBON STEEL STAINLESS STEEL
BWG I.D. Ring Pin Ring Pin Ring Pin
12 0,53 T8TP537BR TP4BP T8TP537CS TP4CSP T8TP537SS TP4SSP
13 0,56 T8TP571BR TP4BP T8TP571CS TP4CSP T8TP571SS TP4SSP
14 0,58 T8TP594BR TP5BP T8TP594CS TP5CSP T8TP594SS TP5SSP
15 0,61 T8TP616BR TP5BP T8TP616CS TP5CSP T8TP616SS TP5SSP
16 0,62 T8TP630BR TP5BP T8TP630CS TP5CSP T8TP630SS TP5SSP
17 0,63 T8TP644BR TP5BP T8TP644CS TP5CSP T8TP644SS TP5SSP
18 0,65 T8TP662BR TP5BP T8TP662CS TP5CSP T8TP662SS TP5SSP
19 0,67 T8TP676BR TP5BP T8TP676CS TP5CSP T8TP676SS TP5SSP
20 0,68 T8TP696BR TP6BP T8TP696CS TP6CSP T8TP696SS TP6SSP
21 0,69 T8TP696BR TP6BP T8TP696CS TP6CSP T8TP696SS TP6SSP
22 0,69 T8TP696BR TP6BP T8TP696CS TP6CSP T8TP696SS TP6SSP

Tube OD: 7/8 inch (22,2 mm)

TUBE SIZE BRASS CARBON STEEL STAINLESS STEEL
BWG I.D. Ring Pin Ring Pin Ring Pin
12 0,66 T8TP662BR TP6BP T8TP662CS TP6CSP T8TP662SS TP6SSP
13 0,69 T8TP696BR TP6BP T8TP696CS TP6CSP T8TP696SS TP6SSP
14 0,71 T8TP719BR TP6BP T8TP719CS TP6CSP T8TP719SS TP6SSP
15 0,73 T8TP741BR TP6BP T8TP741CS TP6CSP T8TP741SS TP6SSP
16 0,75 T8TP755BR TP6BP T8TP755CS TP6CSP T8TP755SS TP6SSP
17 0,76 T8TP769BR TP6BP T8TP769CS TP6CSP T8TP769SS TP6SSP
18 0,78 T8TP787BR TP7BP T8TP787CS TP7CSP T8TP787SS TP7SSP
19 0,79 T8TP801BR TP7BP T8TP801CS TP7CSP T8TP801SS TP7SSP
20 0,81 T8TP821BR TP7BP T8TP821CS TP7CSP T8TP821SS TP7SSP
21 0,81 T8TP821BR TP7BP T8TP821CS TP7CSP T8TP821SS TP7SSP
22 0,82 T8TP821BR TP7BP T8TP821CS TP7CSP T8TP821SS TP7SSP

Tube OD: 1 inch (25,4 mm)

TUBE SIZE BRASS CARBON STEEL STAINLESS STEEL
BWG I.D. Ring Pin Ring Pin Ring Pin
12 0,78 T8TP787BR TP7BP T8TP787CS TP7CSP T8TP787SS TP7SSP
13 0,81 T8TP821BR TP7BP T8TP844CS TP7CSP T8TP844SS TP7SSP
14 0,83 T8TP844BR TP7BP T8TP844CS TP7CSP T8TP844SS TP7SSP
15 0,86 T8TP866BR TP7BP T8TP866CS TP7CSP T8TP866SS TP7SSP
16 0,87 T8TP880BR TP8BP T8TP880CS TP8CSP T8TP880SS TP8SSP
17 0,88 T8TP894BR TP8BP T8TP894CS TP8CSP T8TP894SS TP8SSP
18 0,9 T8TP912BR TP8BP T8TP912CS TP8CSP T8TP912SS TP8SSP
19 0,92 T8TP926BR TP8BP T8TP926CS TP8CSP T8TP926SS TP8SSP
20 0,93 T8TP946BR TP8BP T8TP946CS TP8CSP T8TP946SS TP8SSP
21 0,94 T8TP946BR TP8BP T8TP946CS TP8CSP T8TP946SS TP8SSP
22 0,94 T8TP946BR TP8BP T8TP946CS TP8CSP T8TP946SS TP8SSP