NPT THREAD GAUGES

NPT THREADS are used in general purpose application of pipe assembly, where a pressure tight joint of pipes is made, by making the pipes wrench tight using a sealing compound.

Specification

ANSI/ ASME B1.20.1 – 1983 for Basic Type Gauges & American Handbook H-28 Part II – 1957 for Step Limit type.

Manufacturing Range :

Thread Plugs , Thread Rings, Check Plugs & Wear Check Plugs of Diameter from 1/16″ to 12″ in both Basic & Step Limit Design.

NPTF/PTF Thread Gauges

NPTF THREADS can provide pressure tight seal on threads without use of a sealing compunt (Dry Seal Type). They are used in pipe assemblies where without using sealing compound pressure tight joint is required on threads.

PTF Threads are similar to NPTF but short in length. PTF threads are used in applications similar to NPTF.

Specification

ANSI/ ASME B1.20.6 – 1984 which is Metric translation of ANSI B1.20.5-1978 & American Handbook H-28 Part II – 1957.

Manufacturing Range :

Taper Thread Plugs L1 & L3 in both Basic & Step Limit Design, Plain Taper Plugs to check crest of Threads, Taper Thread Rings L1 & L2 in both Basic & Step Limit Design, Plain Taper Rings to check crest of external threads (6 step design), Master Check Plugs to check Thread Rings L1 & L2.

Pipe Sizes covered are from 1/16″ to 3″

BSPTr THREAD GAUGES

NBSPTr Threads can provide pressure tight seal on threads without use of a sealing compound. They are used in pipe assemblies where pressure tight joint is required on threads, without use of sealing compound.

Two Types of Gauges are recommended System A & System B.

Specification

BS 21 – 1985 Indian Standard: Basic Dimensions – IS 554 – 1975 & Gauging Practice – IS 8999-1979.

Manufacturing Range :

Taper Thread Plugs & Rings for Pipe sizes 1/16″ to 6″ in both System A & System B Design.

Pipe / R Thread Gauges (ISO 7/2)

R / Pipe Threads are used in pipe assemblies where pressure tight joint is required on threads, without use of sealing compound.

Specification

ISO Standard :	Basic Dimensions: ISO 7/1-1994 & Gauging Practice: ISO 7/2-2000,,
BS & European standard :	Basic Dimensions: BS EN 10226-3 – 2005
Indian Standard :	Basic Dimensions: IS 554 – 1999 & Gauging Practice: IS 8999-2003.

Manufacturing Range :

Taper Fullform Thread Plug – Gauge No.1
Taper Fullform Thread Plug with relief – Gauge No.2
Parallel Fullform Ring – Gauge No. 3
Taper Plain Ring – Gauge No.4.
Taper Modified Thread form Check Plug – Gauge No.5
Parallel Modified Thread form Check Ring – Gauge No. 6
size Range covered is from pipe diameter 1/16″ to 6″. Above 6″ & up to 12″ Diameter gauges are manufactured as per JIS B 0253 -1985 specification.

M/ KEG Taper Thread Gauges (DIN 158)

M KEG Metric Taper Threads are used for oil & grease Nipples where self sealing connections can not be obtained by parallel threads with sealing washers.

Specification

DIN Standard :	Basic Dimensions: DIN 158 Part 1-1997 & Gauging Practice: DIN 158 Part 2 – 1997

Manufacturing Range :

Parallel Limit Ring Gauges AND Taper Threaded Check Plug Gauge to check parallel ring for diameters from Mc5 to Mc60. Pitches covered are from 0.8 , 1, 1.25, 1.5 & 2 mm.

NGT Taper Thread Gauges

NPT THREADS are used in general purpose application of pipe assembly, where a pressure tight joint of pipes is made, by making the pipes wrench tight using a sealing compound.