Instrumentation Pipe Fittings

Hex Nipple

Male thread on both ends with a central hex for spanner grip. Joins two female ports — valve to gauge, manifold to instrument — in the shortest length.

• End Conn.MPT × MPT
• Thread (MPT)1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Test PressureUp to 10000 psi
• LengthStandard short length (specific length on request)
• TypeHexagonal. Reducing nipples of all combinations available
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HN-MPT1*-MPT2*

Hex Long Nipple

A hex nipple with an extended body, used to gain clearance past insulation, lagging or adjacent hardware, or to move a gauge away from heat.

Pipe Nipple

Plain round pipe section threaded male at both ends (or one end for a weld-on stub). Supplied in close, short and long lengths.

• End Conn.MPT / Plain
• Thread (MPT)1/8" to 3" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• TypeSchedule pipe nipple — Threaded Both Ends (TBE), Threaded One End (TOE), Plain Both Ends (PBE). Length and schedule / thickness to be specified
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-PN-Size*-Length*-Type*-Sch.

Male Hose Nipple

Male pipe thread on one end and a serrated barb on the other for pushing into flexible hose, secured with a hose clip.

Female Hose Nipple

Female threaded end with a hose barb, fitted directly onto a male valve outlet or nipple for drain, vent and air-line hoses.

Hex Plug

Solid male plug with hex head that closes off unused female ports on valves, manifolds, tees and pressure vessels.

• End Conn.MPT
• Thread (MPT)1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Test PressureUp to 10000 psi
• TypeHexagonal. Square head plug on request
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HP-MPT*

Female Cap (Hex Cap)

Hex-bodied cap with a female thread that seals the end of a male pipe, nipple or valve outlet during testing or for future expansion.

• End Conn.FPT
• Thread (FPT)1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Test PressureUp to 10000 psi
• TypeHexagonal
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HCP-FPT*

Adapter (Hex Male × Female)

Male × female fitting that converts thread type or size — for example 1/2" NPT male to 1/4" BSP female — without adding a second joint.

• End Conn.MPT × FPT
• Thread1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• TypeHexagonal. All combinations available
• LengthStandard short length (specific length on request)
• Test PressureUp to 10000 psi
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HA-MPT*-FPT*

Bush (Hex Reducer)

Hex reducing bush with a larger male thread outside and a smaller female thread inside, for stepping down a port in a compact length.

• End Conn.MPT × FPT
• Thread1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• TypeHexagonal. All combinations available
• LengthStandard short length (specific length on request)
• Test PressureUp to 10000 psi
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HR-MPT*-FPT*

Coupling (Pipe Coupling Screwed)

Round-bodied female × female fitting that joins two male threaded pipes or nipples in a straight line. Equal and reducing sizes.

• End Conn.FPT × FPT
• Thread (FPT)1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• TypeRound as per ANSI B16.11. Reducing coupling in all combinations available
• Pressure ClassUp to 9000 psi
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-PCS-FPT1*-FPT2*-CLASS

Hex Coupling

Female × female coupling machined from hex bar, so it can be held with a spanner while the mating parts are tightened.

• End Conn.FPT × FPT
• Thread (FPT)1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Test PressureUp to 10000 psi
• TypeHexagonal. Reducing hex couplings also available
• LengthStandard short length (specific length on request)
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HC-FPT1*-FPT2*

Three Piece Union (Pipe Union)

Two threaded ends and a loose union nut with a ground metal-to-metal seat. Lets an instrument or valve be removed without rotating the pipe.

• End Conn.FPT / SW / MPT
• Thread1/8" to 2" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Socket Weld1/8" to 2" NB
• TypeHex with Soft Seal (SS) or Metal to Metal Seal (MM)
• Pressure ClassUp to 9000 psi
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS
• Model No.MOC*-PU-SEAL TYPE*-SIZE1*-SIZE2*-CLASS

Female Elbow

90° elbow with female threads on both ports, machined from a solid block for a compact change of direction.

• End Conn.FPT × FPT
• Thread (FPT)1/8" to 1.5" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Test PressureUp to 10000 psi
• TypeHexagonal. 90° reducing elbows in all combinations available
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HEF-FPT1*-FPT2*

Male Elbow

90° elbow with male threads on both ports, screwing directly into two female ports at right angles.

• End Conn.MPT × MPT
• Thread (MPT)1/8" to 1.5" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Test PressureUp to 10000 psi
• TypeHexagonal. 90° reducing elbows in all combinations available
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HEM-MPT1*-MPT2*

Elbow – Male × Female

Street elbow with one male and one female port. Screws straight into a valve or port and turns the connection through 90°.

• End Conn.MPT × FPT
• Thread1/8" to 1.5" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• Test PressureUp to 10000 psi
• TypeHexagonal. 90° reducing elbows in all combinations available
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HEMF-MPT*-FPT*

Tee Female

Three female ports for branching an impulse line to a second gauge, switch or test point.

• End Conn.FPT × FPT × FPT
• Thread (FPT)1/8" to 1.5" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• TypeReducing tees in all combinations available. Tees with male / female threads on request
• Test PressureUp to 10000 psi
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HTF-FPT1*-FPT2*-FPT3*

Tee Male

Three male ports for connecting directly into valves and female fittings without extra nipples.

• End Conn.MPT × MPT × MPT
• Thread (MPT)1/8" to 1.5" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• TypeReducing tees in all combinations available
• Test PressureUp to 10000 psi
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HTM-MPT1*-MPT2*-MPT3*

Cross Female

Four female ports at 90° for distribution points, test connections and vent / drain take-offs on one body.

• End Conn.FPT × FPT × FPT × FPT
• Thread (FPT)1/8" to 1" NPT (Taper); BSPP / BSPT / ISO / Metric on request
• TypeReducing cross in all combinations available. Cross with male / female threads on request
• Test PressureUp to 10000 psi
• MOCSS 316, 304 / Brass / Alloy 400, 600, C276 / CS / PTFE
• Model No.MOC*-HCF-FPT1*-FPT2*-FPT3*-FPT4*