The Parker PB548 / PB558 comes standard with stainless steel bowl, adjustment springs, body, bonnet, bottom plug and poppet for applications in corrosive or wash down applications. It is a stainless steel particulate filter/regulator that provides accurate pressure regulation and high moisture removal efficiency in a compact package. PB548 / PB558 is a one piece combined filter/regulator which minimises space and piping by incorporating two units into one.  A large diaphragm to valve ratio provides precise regulation and good flow capacity.
The various options available such as auto drain, low temperature seals, pressure range and panel mounting capabilities make this series easy to configure in a wide range. 

Markets:
• Medical Applications
• Life Sciences
• Onshore
• Offshore
• Maritime Sector
• Aggressive Environment
• Food & Beverage

Features/Benefits:
• Stainless steel construction
• Handles most corrosive environments
• Large diaphragm to valve area ratio for precise regulation
• High flow capacity
• 1/8" female threaded drain.
• Meets NACE specifications
• MR-01-75/ISO 15156
• High Flow: 1/4" – 12 SCFM

Applications:
• Food, beverage, process engineering
• Shipping and yachting
• Chemical environments and processing
• Oil and Gas applications
• Pharmaceutical and human medicine application
• Pulp and paper applications

Additional Information:
• Stainless Steel Filter/Regulator
• Element: 5m | 20m
• Port Size: 1/4"
• Gauge Port Size: 1/4"
• Relieving | Non-Relieving
• Drain Type: Manual Twist | Automatic Float
• Thread Type: BSPP | NPT
• Maximum Supply Pressure (bar): 20.7
• Maximum Supply Pressure (psi): 300
• Operating Temperature (C): -18° to 66° | -18° to 82° (PB558 metal bowl D)
• Operating Temperature (F): 0° to 150° | 0° to 180° (PB558 metal bowl D)
• Preset Pressure Option: None
• Pressure Range (psig): 0 to 25 | 0 to 60 | 0 to 125
• Pressure Range (bar): 0 to 1.7 | 0 to 4 | 0 to 8.5
• Mounting: Panel Mount Nut option
• Flow Capacity (SCFM): 12
• Flow Capacity (dm³/h): 5.75 
• Body and Adjustment Knob Material: 316 Stainless Steel
• Bowl Material: 316 Stainless Steel
• Filter Element: Polyethylene
• Seals: Fluorocarbon
• Weight: 0.6 lbs or 0.27 kg