METALOK INDUSTRIES

MALE CONNECTOR ISO PARALLEL - RP TYPE

MALE CONNECTOR ISO PARALLEL - RP TYPE

The Male Connector ISO Parallel – RP Type is designed for high-integrity connections in piping systems using ISO 7/1 RP (parallel thread) standards. Unlike tapered threads, the RP Type relies on parallel thread engagement and often requires the use of sealing components such as bonded washers, O-rings, or sealants to ensure a pressure-tight connection. Available in a size range from 1/8” to 2” (imperial) and 3mm to 50mm (metric), it is suitable for a wide variety of industrial applications. These connectors are manufactured from superior materials like Stainless Steel (SS), Brass, Duplex, Monel, and Hastelloy, offering excellent corrosion resistance and mechanical strength. Male Connector RP Types are commonly used in industries demanding secure, standardized, and reliable fluid or gas connections.

  • Male-threaded ISO 7/1 RP parallel thread design.
  • Manufactured in corrosion-resistant materials including SS, Brass, Duplex, Monel, and Hastelloy.
  • Designed to work with bonded seals or sealants for leak-proof performance.
  • Suitable for both high-pressure and general industrial applications.
  • Engineered for precise, easy installation into ISO-standard systems.
  • Provides secure and leak-tight connections in parallel-threaded systems.
  • Offers excellent durability even under aggressive environmental conditions.
  • Compatible with various sealing methods for flexible system integration.
  • Simple, fast installation with standardized RP thread connections.
  • Ideal for a broad range of industries including oil & gas, chemical, and fluid transfer systems.
Part NumberT
(Tube OD)
Tx
(BSPP)
L
(mm)
L1
(mm)
Ø D
(mm)
H
(Inch)
H1
(Inch)
2-MC-2RP1/8″1/8″30.023.42.49/167/16
2-MC-4RP1/8″1/4″35.328.72.43/47/16
2-MC-6RP1/8″3/8″36.329.72.47/87/16
4-MC-2RP1/4″1/8″32.224.94.79/169/16
4-MC-4RP1/4″1/4″37.530.24.73/49/16
4-MC-6RP1/4″3/8″38.831.54.77/89/16
4-MC-8RP1/4″1/2″44.637.34.71.1/169/16
6-MC-4RP3/8″1/4″39.031.75.93/411/16
6-MC-6RP3/8″3/8″40.333.07.17/811/16
6-MC-8RP3/8″1/2″46.238.97.11.1/1611/16
8-MC-4RP1/2″1/4″42.632.55.913/167/8
8-MC-6RP1/2″3/8″43.133.07.97/87/8
8-MC-8RP1/2″1/2″49.038.910.41.1/167/8
12-MC-8RP3/4″1/2″49.038.911.91.1/161.1/8
12-MC-12RP3/4″3/4″52.842.715.81.3/81.1/8
16-MC-8RP1″1/2″55.943.711.91.3/81.1/2
16-MC-16RP1″1″59.947.719.81.5/81.1/2
Part NumberT
(Tube OD)
Tx
(BSPP)
L
(mm)
L1
(mm)
Ø D
(mm)
H
(mm)
H1
(mm)
3M-MC-2RP3 mm1/8″30.023.42.41412
3M-MC-4RP3 mm1/4″35.328.72.41912
4M-MC-2RP4 mm1/8″30.724.12.41412
6M-MC-2RP6 mm1/8″32.324.94.01414
6M-MC-4RP6 mm1/4″37.630.24.81914
6M-MC-6RP6 mm3/8″38.931.54.82214
6M-MC-8RP6 mm1/2″44.737.34.82714
8M-MC-2RP8 mm1/8″33.225.74.01616
8M-MC-4RP8 mm1/4″38.531.06.41916
8M-MC-6RP8 mm3/8″39.832.36.42216
8M-MC-8RP8 mm1/2″45.638.16.42716
10M-MC-4RP10 mm1/4″39.431.85.91919
10M-MC-6RP10 mm3/8″40.633.07.92219
10M-MC-8RP10 mm1/2″46.538.97.92719
12M-MC-4RP12 mm1/4″42.632.55.92222
12M-MC-6RP12 mm3/8″43.133.07.92222
12M-MC-8RP12 mm1/2″49.038.99.52722
12M-MC-12RP12 mm3/4″52.842.79.53522
16M-MC-6RP16 mm3/8″43.933.87.92425
16M-MC-8RP16 mm1/2″49.038.911.92725
18M-MC-8RP18 mm1/2″49.038.911.92730
18M-MC-12RP18 mm3/4″52.842.715.13530
20M-MC-8RP20 mm1/2″50.540.411.93032
20M-MC-12RP20 mm3/4″52.842.715.93532
22M-MC-12RP22 mm3/4″52.842.715.93532
22M-MC-16RP22 mm1″55.345.218.34132
25M-MC-12RP25 mm3/4″57.545.215.93538
25M-MC-16RP25 mm1″60.147.819.84138

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