(12)Parker’s MAF Series Dual-Disc Line Filters are utilized in numerous industrial, chemical processing, aerospace, nuclear and other
applications. With the dual-disc design, large contaminant particles are trapped by the upstream filter element before they can reach
and clog the smaller micron-size downstream element. Filter elements can be easily replaced.
NOTE:
Filter elements downstream/upstream micron size 35/65 is standard.
For 2507 Super Duplex option, replace -SS with -2507 (does not change filter screen material which is 316 SS)
-XF Ferrules are required for 3/4" and 1" 316 SS or 2507 Super Duplex Tubing.
(36)Parker’s MAFC Series high flow Cup Line Filters are recommended in high pressure systems requiring both high flow rates and
maximum filter surface area. Widely used in the industrial and chemical processing fields, the cup design offers as much as six times
the effective filter area as compared to disc-type units. In addition, the filter elements can be quickly and easily replaced.
NOTE:
Other micron sizes are available on special order
For 2507 Super Duplex option, replace -SS with -2507 (does not change filter screen material which is 316 L).
-XF Ferrules are required for 3/4" and 1" 316 SS or 2507 Super Duplex Tubing.
(24)Parker’s MACB series (Ball Check Valve) prevent reverse flow where leak-tight shut-off is not mandatory. When differential drops below
cracking pressure, valve closes. With all-metal components, valve can be used up to 1000°F (538°C). Ball and poppet are an integral
design to assure positive, in-line seating without “chatter”. Poppet is designed essentially for axial flow with minimum pressure drop.
Parker’s MAC series (O-Ring Check Valve) provides unidirectional flow and tight shut-off for liquids and gases with high reliability. When differential drops below cracking pressure*, valve shuts off. (Not for use as a Relief Valve). *Cracking pressure: 20 psi (1.4 bar) +/-30%. For higher cracking pressures (up to 100 psi (6.7 bar) available with special order for O-ring style check valves only.
NOTE:
Minimum operating temperature for standard BALL check valves -110°F (-79°C). For low temperature option to -423°F (-252°C) add suffix-LT (Low temperature spring).
Temperature range for standard Fluorocarbon Rubber O-RING check valves is 0°F to 400°F (-18°C to 204°C). For temperatures under 0°F to -423°F use PTFE o-ring (-TO). If under -110°F (-79°C)
Low Temperature Spring must be used (-LT option).
For 2507 Super Duplex option, replace -SS with -2507. For 2507 Repair kits, include
-2507 as suffix.
-XF Ferrules are required for 3/4" and 1" 316 SS or 2507 Super Duplex Tubing.
(12)Parker’s MARA series (Metal Seat) relief valves provide reliable venting of gases or liquids for set pressures from 3,000 psi
(206.8 bar) minimum to 15,000 psi (1035 bar). The standard temperature range for all models is -423ºF to 400ºF (-252ºC to 204ºC).
A high temperature option to 750ºF (400ºC) is also available. These precision valves are designed for pressure gas systems, cryogenic
systems, petrochemical applications and other special systems.
Capable of handling air, gases, steam, vapor and liquids, they are however, not recommended for steam boiler applications nor are they
ASME code stampable. Relief valves are designed to open proportionally to increasing pressure. Therefore, they are not recommended
for applications requiring immediate full valve flow at set pressure (such as decompositions, polymerizations, etc.). Full flow of relief
valve is defined at 10% over set pressure. Relief valve accuracy = +/-3% of setpoint.
NOTE:
For 2507 Super Duplex option, replace -SS with -2507. For 2507 Repair kits, include -2507 as suffix.
-XF Ferrules are required for 3/4" and 1" 316 SS or 2507 Super Duplex Tubing.
Relief Valves are factory set - Supply Set Pressure at time of order.
(12)Parker’s MARSA series (Soft Seat) relief valves utilize a soft seat design for reliable venting of gases at set pressures from 1,500 psi
(103 bar) to 15,000 psi (1035 bar). The operating temperature range is -50ºF (-46ºC) to 400ºF (204ºF). The soft seat design provides
bubble tight sealing, repeatable pop-off, and reseat. Additionally, soft seat valves provide a higher cycle life than metal seat relief valves.
These precision valves are designed for pressure gas systems, where zero leakage is critical. They are not recommended for liquid
nitrogen or liquid carbon dioxide, which produce gas at cryogenic temperatures upon relief. Relief valves are designed to open
proportionally to increasing pressure. Therefore, they are not recommended for applications requiring immediate full valve flow at
set pressure (such as decompositions, polymerizations, etc.). Full flow of relief valve is defined at 10% over set pressure. Relief Valve
Accuracy = +/-3% of Setpoint.
NOTE:
For 2507 Super Duplex option, replace -SS with -2507. For 2507 Repair kits, include -2507 as suffix.
-XF Ferrules are required for 3/4" and 1" 316 SS or 2507 Super Duplex Tubing.
Relief Valves are factory set - Supply Set Pressure at time of order.
