Technical Specifications / Parameters Parameter Specification Model Fisher 1068 Type Pilot-Operated, Precision Air Pressure Regulator Port Sizes 1/4" NPT (Female) - Standard for inlet, outlet, and vent connections. Body Material Aluminum (with corrosion-resistant finish). Diaphragm Material Buna-N (Standard). Other elastomers like EPDM or Viton may be available. Pressure Ranges (Outlet) Multiple, field-adjustable spring ranges available. Common examples include: • 3-25 psig (0.2-1.7 bar) • 5-50 psig (0.3-3.4 bar) • 10-60 psig (0.7-4.1 bar) (Many other ranges are available). Maximum Inlet Pressure 150 psig (10.3 bar) for most models. Temperature Range -40°F to +180°F (-40°C to +82°C) Flow Capacity (Cv) Approximately 1.8 (providing very high flow for its compact size). Sensitivity Less than 0.25 psi (1.7 kPa) change for a 10 psi (0.7 bar) inlet change. Droop Minimal droop characteristic; typically less than 2 psi (14 kPa) from zero to maximum flow. Relieving Capacity Internal relieving function (on relieving models) vents excess downstream pressure to atmosphere. Weight Approximately 2.5 lbs (1.1 kg).
