Asco Numatics has introduced a new range of Series 342 Stainless Steel Filter Regulators to complement the existing range of air service equipment. Suitable for inlet pressures up to 10 bar, the 1/4” and 1/2” NPT filter regulators have a fully stainless steel construction and comply with the requirements of ASTM A351/NACE MR 01.75.The moulded reinforced diaphragms offer a large flow and the fine pitch/dual springs ensure accurate and steady regulation, regardless of input or output pressures.
With a 316L stainless steel filtering element (25μm & 5μm), the regulators are suitable for compressed air and gases. A finned diverter guarantees effective moisture removal. The regulator bowl has a manual bleed to drain condensate. An automatic drain is available as an option.
The smooth design facilitates easy mounting and there is a separate connection for the optional pressure gauge. In addition to an impressive flow rate ranging from 2380 to 4430 l/min, the filter regulator is suitable for ambient temperatures from -40degC up to +80degC (-50degC for arctic conditions is available on request).
The series 342 stainless steel filter regulator can be installed across many industries, including chemical, petrochemical, offshore and oil & gas, refinery, power generation, pulp & paper and process plants.
Valves for challenging environments
Asco Numatics also recently introduced a 316L stainless steel version of its series 353 pulse valve for use in dust collector systems. Certified to ATEX Category II 2G/D Zone 1 + 2 for explosive areas, it has been introduced to meet the growing demand for valves for challenging environments in the agricultural, grain, food, pharmaceutical, chemical, wood, plastics and cement industries.
The valve has the same features as the existing aluminium version and is suitable for control with either remote Asco pilot valves or an integral solenoid. The diaphragm pulse valve combines high flow, long life and extremely fast opening and closing to provide a reliable and cost effective solution. The valves are available as ¾”, 1” and 1½” threaded versions and can be mounted in any position without affecting their operation.
The series 353 pulse valve is part of a complete range of dust collector products from Asco Numatics that includes power pulse valves, pilot valves, pilot boxes, sequential controllers, pressure differential modules, tank systems and air preparation equipment.
Also recently launched are Asco Numatics’ two intrinsically safe solenoid valves with Ex ia IIC T6 certification. The solenoid operators are designed for use on the 327 range of direct operated solenoid valves and are available in epoxy coated aluminium or stainless steel. The solenoids are certified to ATEX, Category 1G/2D and Equipment Protection Level (EPL) Ga/Db. Both operators are IECEx approved and certified to IEC 61508 Functional Safety (SIL 3 capable).
The polarity insensitive solenoid operators have a power consumption of only 0.5W at 24V DC and feature a newly developed electronic booster coil and stainless steel core for optimum performance. Available with either an epoxy coated aluminium or 316L stainless steel enclosure rated to IP66 and IP67. The operator can be rotated 360° and locked into position to select the best position for cable entry. Electrical connection is via a cable gland (M20x1.5) or cable connection 1/2” NPT and easy access screw terminals.
The 327 series solenoid valves feature a brass, stainless steel or aluminium (NAMUR) body. These valves have a large flow rate (Kv 0.45 m³/h), operate from 0 to 10 bar and require no minimum operating pressure.
The solenoid valves are suitable for use in ambient temperatures from -40degC to +60degC, and are rated to ll 1/2G Ex ia IIC T6 Ga / II 2D Ex tb lllC T85degC IP66/67 Db, Certification: ATEX and IECEx EN 60079-0, EN 60079-11, 60079-31, EN 61241-0 and EN 61241-11.
The introduction of the new solenoid valve means that Asco can now offer a universal intrinsically safe valve for 3/2 and 2/2 normally open and normally closed applications in aggressive environments across the process industry.
Photo caption: Asco Numatics Series 342 filter regulators.
