What is a precision pressure regulator?

A precision pressure regulator maintains a stable output pressure with high accuracy and repeatability, even when inlet pressure or downstream demand changes.

How do I choose the right precision regulator?

Select a regulator based on pressure range, flow requirements, accuracy, and application conditions such as low-pressure control or high-flow demand.

What is droop in a pressure regulator?

Droop refers to the decrease in output pressure as flow demand increases. Precision regulators are designed to minimize droop and maintain stable pressure.

When should I use a precision regulator instead of a general-purpose regulator?

Use a precision regulator when your application requires tighter control, higher accuracy, and better repeatability than standard regulators can provide.

What industries use precision pressure regulators?

Industries such as medical devices, semiconductor manufacturing, calibration, leak testing, and automation rely on precision regulators for consistent performance.

What is an air pressure regulator?

An air pressure regulator controls and maintains stable downstream air pressure within a pneumatic system, even when inlet pressure or flow demand changes.

Why are air pressure regulators important?

Air pressure regulators help improve equipment performance, maintain process consistency, protect downstream components, and reduce system variability in pneumatic applications.

What is the difference between a precision regulator and a general-purpose regulator?

Precision regulators provide higher sensitivity, lower droop, and greater accuracy for demanding applications, while general-purpose regulators are designed for broader industrial use.

When should I use a filter regulator?

Filter regulators should be used when compressed air systems require both pressure regulation and contaminant removal to protect downstream pneumatic equipment.

What applications use air pressure regulators?

Air pressure regulators are used in industrial automation, instrumentation, medical equipment, semiconductor manufacturing, calibration systems, robotics, pneumatic control systems, and fluid power applications.

Type 100 Precision Air Pressure Regulator

Description

Overview

The Type 100 Precision Air Pressure Regulator delivers the highest level of regulation accuracy, repeatability, and stability available in the ControlAir precision regulator portfolio. Designed for demanding applications requiring exceptionally stable output pressure under changing operating conditions, the Type 100 utilizes a multi-stage, servo-balanced control system with a stainless steel measuring capsule to achieve regulation accuracy up to 0.1%.

Unlike conventional regulators that rely on range springs and diaphragms, the Type 100 uses a pilot-operated design that continuously compensates for fluctuations in supply pressure and downstream demand. The result is highly accurate pressure control, minimal droop, outstanding sensitivity, and exceptional repeatability for calibration, testing, measurement, and precision automation applications.

Key Features

Pressure regulation accuracy up to 0.1%
High repeatability and long-term stability
Low droop under changing flow conditions
High sensitivity for precise low-pressure control
Servo-balanced, multi-stage pressure control design
Stainless steel measuring capsule sensing element
Stable output pressure under varying supply conditions
Available in multiple pressure ranges and port sizes
High-relief and extra-high-relief configurations available
Low-range model for ultra-precise low-pressure applications
Optional plunger, motorized, and manifold-mount configurations
Suitable for laboratory, OEM, industrial, and automation systems

Performance Characteristics

Specification	Value
Regulation Accuracy	Up to 0.1%
Flow Capacity	14 scfm (420 NL/min)
Exhaust Capacity	Up to 15 scfm (425–450 NL/min)
Sensitivity	1/8 in. water column (3.2 mm)
Supply Pressure Sensitivity	Less than 0.005 psig for a 25 psig supply pressure change
Maximum Supply Pressure	150 psig (10 bar)
Air Consumption	6 scfh (3 NL/min)
Temperature Range	-20°F to 160°F (-29°C to 71°C)
Weight	1.4 lb (635 g)

These performance characteristics enable highly stable pressure control, rapid response to system changes, and exceptional repeatability in precision pneumatic applications. The servo-balanced pilot control mechanism minimizes the influence of inlet pressure variations while maintaining consistent output pressure under dynamic conditions.

How to Select the Right Configuration

Selecting the correct Type 100 configuration depends on your application requirements:

Choose the Appropriate Pressure Range

Low Range (100LR): 0.5–25 psig
Standard Range: 2–40 psig
Standard Range: 2–60 psig
Standard Range: 2–120 psig

Match Flow and Exhaust Requirements

Standard models provide excellent regulation performance for most applications.
High Relief (100HR) and Extra High Relief (100EHR) models provide faster exhaust performance for dynamic systems and counterbalance applications.

Select the Proper Installation Style

Standard panel or pipe mounting
Bottom Port (100BP) for manifold mounting
Plunger Actuated (100PL)
Motorized (100M) for remote pressure adjustment

Verify Porting Requirements

Available in:

1/8″ NPT / BSP
1/4″ NPT / BSP
3/8″ NPT / BSP

For additional guidance:

Applications

The Type 100 is designed for applications where pressure stability, repeatability, and accuracy are critical:

Calibration equipment
Leak testing systems
Air gauging
Coordinate Measuring Machines (CMM)
Semiconductor manufacturing
Medical and diagnostic equipment
Laboratory instrumentation
Process control systems
Pneumatic counterbalance systems
High-precision automation equipment
Research and development testing systems

The combination of ultra-stable pressure regulation and high sensitivity makes the Type 100 particularly well suited for applications where even small pressure variations can affect performance or measurement accuracy.

Resources

FAQs

What makes the Type 100 a precision regulator?

The Type 100 uses a stainless steel measuring capsule and servo-balanced pilot-operated control mechanism to achieve regulation accuracy up to 0.1%, exceptional repeatability, and stable output pressure under changing operating conditions.

What is droop and why does it matter?

Droop is the decrease in outlet pressure as flow demand increases. The Type 100 minimizes droop, helping maintain accurate pressure control even when downstream demand changes.

When should I choose the low-range model?

The Type 100LR is ideal for applications requiring highly accurate control below 25 psig, such as calibration equipment, air gauging, and laboratory instrumentation.

What is the benefit of high-relief and extra-high-relief models?

These configurations provide faster exhaust capability, allowing output pressure to decrease more rapidly when system demand changes. They are commonly used in counterbalance systems and applications requiring rapid pressure decay.

How does the Type 100 maintain pressure stability?

A pilot valve continuously controls the main valve through a high-gain servo-balanced mechanism. This design compensates for inlet pressure fluctuations and changing flow demand, resulting in highly stable outlet pressure.

Additional information

Port Size	1/4" BSP, 1/4" NPT, 1/8" BSP, 1/8" NPT, 3/8" BSP, 3/8" NPT
Output Range	0.5-25 psig (0.03-1.7 bar), 2-120 psig (0.14-8 bar), 2-40 psig (0.14-2.7 bar), 2-60 psig (0.14-4 bar)
Flow Capacity (100 psig supply - 20 psig outlet)	14 scfm (420 NL/min)
Exhaust Capacity	Up to 15 scfm (425 NL/min)
Sensitivity	1/8 in. (3.2 mm)
Max. Supply Pressure	150 psig (10 bar)
Supply Pressure Sensitivity	less than 0.005 psig (0.003 bar) for a 25 psi (1.7 bar) change
Air Consumption	6 scfh (3 NL/min)
Ambient Temperature Limits	-20° to 160°F (-29° to 71°C)
Gauge Ports (2)	1/4" NPT, 1/4" BSP
Weight	1.4 lb. (635 g)
Mounting Options	Pipe, Panel, Bracket
Body Materials	Diecast zinc alloy

Type	Part Number	Port Size (NPT/BSP)	Output Range
Type	Part Number	Port Size (NPT/BSP)	PSI	BAR
100	100-AA	1/8″	2-40	0.14-3
100	100-AB	1/8″	2-60	0.14-4
100	100-AC	1/8″	2-120	0.14-8
100	100-BA	1/4″	2-40	0.14-3
100	100-BB	1/4″	2-60	0.14-4
100	100-BC	1/4″	2-120	0.14-8
100	100-CA	3/8″	2-40	0.14-3
100	100-CB	3/8″	2-60	0.14-4
100	100-CC	3/8″	2-120	0.14-8
100HR	110-BC	1/4″	2-120	0.14-8
100HR	110-CC	3/8″	2-120	0.14-8
100EHR	111-BC	1/4″	2-120	0.14-8
100EHR	111-CC	3/8″	2-120	0.14-8
100LR	120-BA	1/4″	0.5-25	5-175
100BP	140-BA	–	2-40	0.14-3
100BP	140-BB	–	2-60	0.14-4
100BP	140-BC	–	2-120	0.14-8
100PL	150-AA	1/8″	2-40	0.14-3
100PL	150-AB	1/8″	2-60	0.14-4
100PL	150-AC	1/8″	2-120	0.14-8
100PL	150-BA	1/4″	2-40	0.14-3
100PL	150-BB	1/4″	2-60	0.14-4
100PL	150-BC	1/4″	2-120	0.14-8
100PL	150-CA	3/8″	2-40	0.14-3
100PL	150-CB	3/8″	2-60	0.14-4
100PL	150-CC	3/8″	2-120	0.14-8

Models & Configurations

Type 100 Standard

General-purpose precision regulator available in:

2–40 psig
2–60 psig
2–120 psig

Type 100HR – High Relief

Enhanced exhaust performance for rapid pressure reduction and pneumatic counterbalance applications.

Type 100EHR – Extra High Relief

Provides exhaust capacities up to 15 scfm for fast pressure decay and highly dynamic systems.

Type 100LR – Low Range

Output range of 0.5–25 psig for low-pressure precision control applications.

Type 100PL – Plunger Actuated

Linear plunger control replaces manual knob adjustment.

Type 100BP – Bottom Port

Bottom-ported design with manifold mounting capability.

Type 100M – Motorized

Remote pressure adjustment while maintaining Type 100 regulation performance.

Type	Part Number	Thread Size	Pressure Range	Wetted Material
Gauge - Back Mount	446-725-003	1/4" NPT	0-15 (0-1bar)	Brass
Gauge - Back Mount	446-725-004	1/4" NPT	0-30 PSI (0-2bar)	Brass
Gauge - Back Mount	446-725-001	1/4" NPT	0-60 PSI (0-4bar)	Brass
Gauge - Back Mount	446-725-002	1/4" NPT	0-160 PSI (0-11bar)	Brass

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Type 100 Precision Air Pressure Regulator