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Pilots & Accessories. Signal Pilots Control Pilots Accessory Items Filters Drip Pots Instrument Regulators Shutter Controls.

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Presentation on theme: "Pilots & Accessories. Signal Pilots Control Pilots Accessory Items Filters Drip Pots Instrument Regulators Shutter Controls."— Presentation transcript:

1 Pilots & Accessories

2 Signal Pilots Control Pilots Accessory Items Filters Drip Pots Instrument Regulators Shutter Controls

3 Signal Pilots Enhance a pneumatic or mechanical input signal Provide Reversed Output Multiplied Output Volume Boosted Output On / Off Snap Output

4 3 PS Snap Pilot Supply Variable pressure Output Reverses input signal Converts varying signal to ON / OFF signal. Indirect

5 Direct or Indirect ? Direct Mode Indirect Mode Rising Input Rising Output Falling Output DirectIndirect

6 3 PS Snap Pilot Supply Supply pressure must Not exceed 30 psi. Variable pressure Output With increasing variable pressure, output snaps OFF at about 10 psi. With decreasing variable Pressure, output snaps ON at 3 psi. Indirect

7 Converts variable (throttling) output to ON / OFF output 3 PS Snap Pilot

8 Converts variable (throttling) output to ON / OFF output. Reverses output. 3 PS Snap Pilot

9 3 PG Throttle Pilot Multiplies output pressure 4:1 Boosts output volume Direct action Throttle response Supply Variable pressure Output Direct

10 3 PG Throttle Pilot Pressure reducing regulator 4:1 increase in sensitivity

11 3 PG Throttle or Snap Direct Indirect Variable pressure Output Variable pressure Output Supply Throttle Snap

12 3 PGM Manual Reset Pilot Monitors output of a 3-way valve (pilot) Blocks supply and vents output when a preset limit is exceeded Supply Output 3-way valve or pilot Direct

13 3 PGM Manual Reset Pilot Supply Output T 12 Thermostat (3-way valve)

14 3 PGB Bistable Pilot Uses two temporary signals: One signal to turn ON the pilot One signal to turn OFF the pilot Off signal Output Supply On signal

15 3 PGB Bistable Pilot Low High Upstream pressure gap control

16 30 PGR Relay Direct 20–30 psi Variable pressure Output psi Supply Low variable pressure turns high pressure signal ON / OFF

17 30 PGR Relay 300 psi pressure closing valve actuated by 30 psi signal Up to 300 psi supply Up to 300 psi output 20 to 30 psi variable pressure

18 Control Pilots Sense a controlled pressure and… Provide output signal for condition monitor Provide output signal to a remote valve for Back pressure control Pressure reduction Differential pressure control Vacuum control

19 30 HPG Indirect Output Supply Controlled Pressure Pressure range: 5 to 300 psi

20 30 HPG PR

21 30 HPG Direct Direct Controlled Pressure Output Supply 30 psi max. Inverted pilot plug and seats Semi-snap acting Does not throttle Pressure range: 5 to 300 psi AHJ3 30 HPG DIR/125 lb Spring AHJ4 30 HPG DIR/300 lb Spring

22 30 HPG Direct Pressure reducing regulator with line break shut-down Indirect PR pilot Direct pilot set at low line break pressure

23 30 PG PRDA Direct Controlled Pressure Output Supply 30 psi max. Throttle action Pressure range: 5 to 300 psi

24 30 PG PRDA Pressure reducing regulator with fail open valve

25 75/150 PG Throttle action Pressure range: 75 PG: 50 to 750 psi 150 PG: 125 to 1500 psi Single Adjusting Screw Proportional Output 75 PG = 2:1 150 PG = 1:1 Simple Design Low Initial Cost Easy to Understand Easy to Maintain

26 75/150 PG Indirect Direct Indirect

27 75/150 PG Pressure Reducing Regulator

28 Liquid Differential Pressure Pilot Indirect Throttle action Pressure range: 5 to 300 psi Higher Pressure Output Supply Lower Pressure

29 Liquid Differential Pressure Pilot Holds vessel gas pressure above liquid discharge pressure with fail open valve. Inlet Gas out Liquid out

30 Pressure Differential Controller Indirect 1 to 260 inches H 2 O differential 1000, 2000, or 4000 psi working pressure

31 100, 200, 400 PDC Maintains constant differential on orifice meter

32 Ounces Pressure Reducing Pilot Indirect Three spring ranges: ½ ounce to 2 ½ psi ½ psi to 5 psi 1 psi to 20 psi Controlled Pressure Output Supply

33 Direct Acting Ounces Pressure Reducing Pilot Direct Three spring ranges: ½ ounce to 2 ½ psi ½ psi to 5 psi 1 psi to 20 psi Output Supply 30 psi max. Controlled Pressure

34 Accessories Supply Gas Regulator Sense Line Protector Drip Pots Air Motor

35 Supply Gas Regulator Output pressure: 0 to 125 psi Inlet pressure: 4000 psi max. Inlet Outlet Reversible seat Internally relieving Low droop Available in 316 stainless

36 Supply Gas Regulator Sense Line Protector

37 Sense Line Protector Protects pilots on high pressure systems Output pressure: 20 to 300 psi Inlet pressure: 1000 psi max. Inlet Outlet

38 Drip Pots DP 30 DP 200/400 FD 200

39 Air Motor Operates shutters on air cooled heat exchangers 5 ½ inch stroke 125 psi working pressure

40 Air Motor Operates shutters on air cooled heat exchangers


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