This general catalogue has been delivered to: Mrs/Mr Company address on date by our EDITION US 01/21

GENERAL INFORMATION COAXIAL AND PNEUMATICALLY OPERATED VALVES SPARE PARTS

General information 1.2 Descriptive part numbering 1.3 Construction details 1.4 Seal material 1.5 Media compatibility 1.6 Electrical features 1.6.1 Protection class 1.6.2 Insulation class 1.6.3 Service 1.6.4 Power 1.7 Units of measure 1.8 Flow calculation 1.9 Technical tables 1.9.1 Pressure 1.9.2 Viscosity 1.9.3 Temperature 1.9.4 Steam 1.9.5 Specific gravity 1.10 Response time 1.11 P.E.D. Directive (2014/68/UE) 1.12 Operating instructions and installation 1.13 Model identification

The solenoid valves illustrated in this catalogue have applications in most industrial sectors, compatible with a vast range of fluids. The quality of the materials used and the precise engineering of the parts, coupled with rigorous 100% testing of all production valves guarantees their service capability. In addition to the standard versions published in the catalog, ACL is able to offer alternative design solutions for specific applications.

1.2 Descriptive part numbering for servo-assisted versions CURRENT E D AC/DC CURRENT SEAL B=NBR E=EPDM F=EPDM food appr. H=HNBR M=EPDM WRAS N=CHLOROPRENE V=FPM Example : E207INV50///U25F Description: solenoid valve suitable for alternating or direct current 2/2 normally open, 2 NPT connections, FPM seal, orifice 50mm (1.97in), coil width 30mm (1.18in), class H insulation, power consumption 15VA, voltage 240V 60Hz. Descriptive part numbering for direct-acting versions CURRENT E D AC/DC CURRENT CONNECTION X=Flange K=Spiggot N=1/8 Male P=Hosetail W=Compression Z=Push-in Y=Push-in SEAL B=NBR L=Low...

Descriptive part numbering for angle seat valves 70mm actuator Standard 70mm actuator High pressure 70mm actuator Proportional 50mm actuator Standard 50mm actuator Proportional Optical position indicator (standard) Electrical position indicator Example : P170DNW15/E Angle seat valve 2/2 NC actuator Ø70, 1/2 NPT connection, PTFE seals, electrical position indicator Descriptive part numbering for coils INSUL. CLASS Self-extinguishing Nylon Example : U35B Coil width 22mm (0.866in) in self-extinguish Nylon, Insulation class H, Voltage 24V 60Hz, Power 8VA

1.3 Construction details Solenoid valves are equipment used to control media in pressure. Their action is to either open or close the interception of media, directly or indirectly, when the coil is energized. The most important components of the solenoid valve are : 1.The valve body, which has an inlet and an outlet connection and an orifice for media flow. 2.The armature tube assembly, with the core, on which the coil is attached. 3.The plunger, which in some cases serves like a seal, sliding in the armature tube. 4.The coil, which produces the magnetic field required to move the plunger.

1.3.1 Methods of operation 2 way direct-acting NORMALLY CLOSED NORMALLY OPEN The 2 way solenoid valve has an inlet and an outlet connection within the valve body. It can be normally closed (2/2 NC). In this position, the media is prevented from flowing through the orifice by virtue of the plunger seal. When connected to an electrical supply, the plunger moves upward opening the orifice allowing the inlet to feed the outlet port. In the normally open (2/2 NO), the orifice is open, the inlet feeds medium through the outlet. When connected to an electrical supply the orifice is then closed. The...

Servo-assisted valve action With larger orifices, static pressure increases, and it’s still necessary that the magnetic field produced by the coil is able to control these forces. This is achieved by using servo-assisted action in the solenoid valve. In this design, the media pressure helps to keep the main valve seal closed. The normally closed design (2/2 NC) has an inlet and outlet connection in the valve body. When the coil is not energized, the flow is blocked by the main seal, which could be either a diaphragm or a piston design. In this mode the medium flows through a small hole in the...

The normally open (2/2 NO) version has an inlet and outlet connection in the valve body. With larger orifices, static pressure increases, and it’s still necessary that the magnetic field produced by the coil is able to control these forces. This is achieved by using servo-assisted action in the solenoid valve. In this design the media pressure helps to keep the main valve seal open. When the coil isn’t energized, the flow is not interrupted by the main seal, which could be either a diaphragm or a piston design. In this mode the medium flows through a small hole in the diaphragm or piston and...

Angle seat valves This type of valve is controlled by a pilot fluid supplied to the actuator by means of a pilot valve. A stem connect the closure device to the control member of the actuator. The spring acting on the control member forces the closure device down into the closed position on the valve seat. The pilot supply overcomes the spring force to lift the control member into the open position. These valves are mainly suitable for contaminated or extremely viscous process fluids.

EPDM (Ethylene-propylene-dylene ) Commercial denomination BUNA -N PERBUNAN ELAPRIM JSR-N BUNA- AP DUTRAL NORDEL General characteristics A synthetic elastomer with good mechanical and thermal properties. Good resistance to oils. Poor resistance to ozone and atmospheric derivatives. Water (max T=+158°F) Air (max T=+194°F) Mineral oils and their derivates,hydrocarbons, methane, ethane, propane, butane, kerosene oil, fuel oil. A synthetic elastomer derived from the co-polymerization of ethylene and propylene. Suitable for use with nonphosphoric based hydraulic fluids(hold). Water and steam to a max....

The following table reflects general characteristics with regards to the compatibility of different valve materials with media. To determine the compatibility with corrosive fluids it is important to know all the data relative to temperature, concentration and media composition. MEDIA Acetone Acetylene Argon hold Benzol Butane Calcium monoxide Carbon dioxide (liquid) Carbon disulphide Chloroform De-ionised water De-mineralised water Dry carbon dioxide (gas) Ethane Ethanol Ethyl acetate Ethyl cloride Ethylene glycol Formaldehyde Freon Fuel oil Glycerine Hard water Helium Heptane Hexane Hot water...