Type 200 Precision Air Relay

Pilot operated, multi-stage 1:1 relay with positive and negative biasing adjustment capability.

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Pilot operated, multi-stage 1:1 relay

The Type 200 Precision Air Relay is a pilot operated, multi-stage 1:1 relay with a positive and negative bias adjustment capability. It accurately reproduces a signal pressure plus or minus the bias setting with consistent reliability. Output control and stability are maintained through a high gain servo balanced control mechanism which is activated by a highly sensitive stainless steel measuring capsule.

Specifications

Flow Capacity

14 SCFM (396 Nl/min) at 100 psig (7 bar) supply with 20 psig (1.4 bar)

Exhaust Capacity

     5 psig (0.34 bar) above signal pressure, no bias

Type-200: 3 SCFM (85 Nl/min)

Type-200HR: 11 SCFM (311 Nl/min)

Type-200EHR: 15 SCFM (425 Nl/min)

Sensitivity

1/8″ (3.2 mm) water column

Effect of Supply Pressure Variation on Output

Less than 0.005 psig (0.0003 bar) for a 25 psig (1.7 bar) change

Bias Range

-30 psig (2 bar) to +100 psig (6.7 bar); Max. output 120 psig (8 bar)

Maximum Supply Pressure

150 psig (10 bar)

Maximum Signal Pressure

120 psig (8 bar)

Bleed Rate

Less than 0.08 scfm (2.3 Nl/min)

Operating Temperature

-20°F to 160°F (-29° C to 71° C)

Weight

1.4 lbs. (635 gm)

Mounting

In-line (pipe)

Port Sizes

1/4″, 3/8″ NPT/BSP

Ordering

Type
Model
Number
Port Size
(NPT/BSP)
Output Range
psi bar
200
200-BC
1/4″
2-120
0.14-8
200
200-CC
3/8″
2-120
0.14-8
200-HR
210-BC
1/4″
2-120
0.14-8
200-HR
210-CC
3/8″
2-120
15-800
200-EHR
211-BC
1/4″
2-120
15-800
200-EHR
211-CC
3/8″
2-120
15-800
200-EB
220-BC
1/4″
2-120
15-800
200-EB
211-CC
3/8″
2-120
15-800
200-EB/HR
230-BC
1/4″
2-120
15-800
200-EB/HR
230-CC
3/8″
2-120
15-800

OPTIONS – Add proper letter onto end of model number:

E – Tapped Exhaust: allows captured exhaust. 10-32 tapped exhaust vent and barbed bleed screw.

U – BSP Porting – 1/4″, 3/8″ BSP Porting.

Oxygen Compatible – Consult factory for ordering information

ACCESSORIES

Pressure Gauge
0-15 psi P/N: 446-725-003
0-30 psi P/N: 446-725-004
0-60 psi P/N: 446-725-001
0-160 psi P/N: 446-725-002

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