Brochure

54
Regulators
Wells (Only for use with Model 315 with a brass bulb)
• Lightweight, compact size prevents strain on mounting
pipes
• Can be remotely located from the Main Valve and Air
Pressure Pilot
• Bi-metallic temperature sensing
• Bulb options:
–Brass
–PTFE coated brass
–Stainless Steel
• Direct or reverse acting modes of operation
• Optional wells (for brass bulb models only) allow bulb
removal without draining system
• Air C onsumption 0.50 scfm (.014m
3
)
• Supply Air Pressure
Nominal 18 psig (1.2 bar)
Minimum 12 psig (0.8 bar)
Maximum 36 psig (2.4 bar)
• Signal pressure at set-point temperature
50% of supply pressure
9 psig (0.6 bar) at nominal supply pressure
6 psig (0.4 bar) at minimum supply pressure
18 psig (1.2 bar) at maximum supply pressure
• Temperature Control Range
50-300°F (10-149°C)
200-450°F (93-232°C)
• Accuracy of con trol ± 4°F (± 2.2°C) with system
recirculation
Series 315 PNT For Shop Quality Air
The Series 315 PNT Pneumatic Temperature pilots are
designed for applications such as refineries and factories,
or others where rapidly changing load requirements
occur. Pneumatic temperature pilots provide greater
accuracy than self-contained temperature pilots. An Air
Pressure Pilot, an Air PRV Regulator and a Series
2000 Main Valve Steam Regulator must be used with
the Model 315 PNT.
Pneumatic Temperature Control Pilots
Well for Series 315 PNT
3
⁄4" NPT
7
3
⁄4" (197mm)
9" (229mm)
1
⁄2" NPT (15mm)
Direct Acting
Supply Port
Reverse Acting
Supply Port
SS-10
1
⁄2" (267mm)
Cop- 8
1
⁄2" (216mm)
Signal Port
Refer to Ordering Information on:
– Air Pressure Control Pilots
– Air PRV Regulators
Ordering Information
Pneumatic Temperature Pilot
Temperature Weight
Model Part Range (Approx.)
Number Number °F (°C) lbs. (kg)
315 Brass 402967 50–300 (10–149) 3 (1.4)
315 PTFE coated Brass 402970 50–300 (10–149) 3 (1.4)
315 Stainless Steel 402973 50–300 (10–149) 3 (1.4)
315 Stainless Steel 400461 200–450 (90–232) 3 (1.4)
Weight
Model Part (Approx.)
Number Number lbs. (kg)
Well, Brass 400400 2 (.9 )
Well, PTFE coated Brass 400463 2 (.9 )
Well, Stainless Steel 403803 2 (.9 )
2
1
⁄2"
(65mm)
SS-12
1
⁄2" (318mm)
Cop-10
1
⁄2" (267mm)
SS-Stainless Steel
Cop-Copper
Hoffman Specialty
®
RegulatorsHoffman Specialty
®
Regulators