Arcellor Controls (INDIA) pipe fittings are available with NPT (National Pipe Taper), BSP/ISO (British Standard Pipe/International Standards Organisation) and SAE/MS Straight Thread.
Tapered Threads
Specification (s)
Type
Part No. Or Suffix Designation
Sealing Method
NPT ANSI B1.20.1
M/F
N
Seal is made on the thread. Thread sealant is required
ISO 7/1 BS 21 JIS B0203 DIN 2999
M/F M/F M/F Male
RT
Seal is made on the thread. Thread sealant is required
Parallel Threads
Specification (s)
Type
Part No. Or Suffix Designation
Sealing Method
ISO 228/1+2 BS 2779 JIS B0203
Male
RP
Metal-to metal sealing to DIN 3852, Form B.
ISO 228/1+2 BS 2779 JIS B0202
Male
RS
Utilizes a sealing washer to provide sealing. Reference DIN 3852, Form A.
ISO 228/1+2 BS 2779 JIS B0202
Female
RG
Sealing form meets DIN 3852, Form Y.
BS2779 ISO 288/1+2 with Elastic Sealing
Male
EO
Sealing form meets DIN 3852, Part 2, Form E.
SAE J514
Male
SAE
Sealing with ‘O’ Ring
Material Code Description
Description of material code
SS316
E
SS316L
EL
‘O’ Ring Viton
V
‘O’ Ring Buna
N
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