Pneumatic Fittings

Quick-Disconnect Couplings

Socket-and-plug couplings connect and disconnect air tools and supply hoses. Threaded, hose-tail and multi-outlet versions provide detachable connections at workstations and compressed-air branches.

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Socket and plug connectionsDetachable air supplySingle and multiple outlets

Product features

Socket and plug halves provide detachable pneumatic connections.
Male-thread, female-thread, hose-tail and tube-retaining ends connect to different air-line arrangements.

Technical specifications

Fluid: Air and vacuum
Operating pressure: 0–0.9 MPa (0–9.2 kgf/cm²)
Vacuum pressure: −100 kPa
Proof pressure: 1.32 MPa
Operating temperature: 0–60°C
Applicable tubing: Polyurethane

Ordering code

SM-20

SCoupling half: Socket
MConnection type: Male thread
20Port size: PT1/4

Coupling-half codes

Code	S	P
Type	Socket	Plug

Connection-type codes

Code	M	F	H	P
Connection	Male thread	Female thread	Hose tail	Tube-retaining connection

Threaded port-size codes

Code	10	20	30	40
Thread	PT1/8	PT1/4	PT3/8	PT1/2

Coupling series

Series	SM	SF	SH	SP	PM	PF	PH	PP
Connection	Male-thread socket	Female-thread socket	Hose-tail socket	Tube-retaining socket	Male-thread plug	Female-thread plug	Hose-tail plug	Tube-retaining plug

The PT port-size codes describe the male-thread example. Female-thread models use the G threads listed in their model tables. Hose-tail and tube-retaining models use the tube dimensions listed for each series.

Quick-Disconnect Couplings • Product specifications

Quick-Disconnect Couplings: Technical specifications

SP Compression-tail quick-coupling sockets

Model specifications

Series 01

Series: SP Compression-tail quick-coupling sockets

A quick-coupling socket with a compression tail connects a detachable air line to tubing.

Technical specifications

Operating data

Fluid: Air and vacuum
Operating pressure: 0-0.9 MPa
Operating temperature: 0-60 °C
Proof pressure: 1.32 MPa

SP - Compression-tail quick-coupling sockets dimensions (mm)

SP - Compression-tail quick-coupling sockets dimensions (mm)

Model	Tube size	A	LS	HS	D	T
SP-10	Φ6	14.5	49.3	13.3	25	14H
SP-20	Φ8	14.5	50.3	13.3	25	14H
SP-30	Φ10	15	51.7	13.3	25	14H
SP-40	Φ12	17.5	54.3	15.8	25	14H

Technical overview

Quick-Disconnect Couplings series specifications

Functions, dimensions, operating ranges and connections across the product series.

11 related series

Series	function	Tube size	Thread port	Pressure range	Material	Tube media
SP Compression-tail quick-coupling sockets	-	Φ6, Φ8, Φ10, Φ12	-	0-0.9 MPa	-	Air and vacuum
SH Hose-barb quick-coupling sockets	Hose Barb	Φ6, Φ8, Φ10, Φ12	-	0-0.9 MPa	-	Air and vacuum
SM Male-thread quick-coupling sockets	-	-	-	0-0.9 MPa	-	Air and vacuum
SF Female-thread quick-coupling sockets	-	-	-	0-0.9 MPa	-	Air and vacuum
PP Compression-tail quick-coupling plugs	Quick Coupler	Φ6, Φ8, Φ10, Φ12	-	0-0.9 MPa	-	Air and vacuum
PH Hose-barb quick-coupling plugs	Hose Barb	Φ8, Φ10, Φ12	-	0-0.9 MPa	-	Air and vacuum
PM Male-thread quick-coupling plugs	Quick Coupler	-	-	0-0.9 MPa	-	Air and vacuum
PF Female-thread quick-coupling plugs	Quick Coupler	-	-	0-0.9 MPa	-	Air and vacuum
SMV Two-outlet quick-coupling distributors	-	-	-	0-0.9 MPa	-	Air and vacuum
SMY Three-outlet quick-coupling distributors	-	-	-	0-0.9 MPa	-	Air and vacuum
SML/SMT/SMM/SMX/SMZ Linear quick-coupling manifolds	-	-	-	0-0.9 MPa	-	Air and vacuum

Connection flow tools

Connection and airflow calculations

Tube diameter, air velocity and pressure-loss estimates for pneumatic connections.

Open Valves & flow tools

01Valves & flow

Tube ID Calculator

Calculate tube internal diameter from outside diameter and wall thickness.

Free-air flowFlow unitWorking pressureOpen calculator 02Valves & flow

Air Velocity Calculator

Calculate airflow velocity inside the tube.

Free-air flowFlow unitInternal diameterOpen calculator 03Valves & flow

Pressure Drop Calculator

Estimate pressure loss along the tubing run.

FlowPipe lengthEquivalent fitting lengthOpen calculator 04Unit conversion

Flow Converter

Convert between volumetric flow units.

Flow valueSource flow unitOpen calculator

Product enquiries

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Bepto Pneumatic is the pneumatic product line of Bepto Industrial. Contact us for product specifications, drawings, availability and quotations.