Description
Overview
The Type 6100 High Flow Capacity Volume Booster is a 1:1 signal-to-output relay designed for pneumatic applications requiring high forward flow and exhaust capacity. Typically installed between a valve positioner and actuator, the Type 6100 increases the throttling speed of large-volume control valve actuators and is suitable for both diaphragm and piston actuators.
A fixed deadband and integral adjustable bypass valve work together to provide stable, responsive actuator control. Small incremental signal changes can pass through the bypass without opening the main booster valve, while larger signal changes activate the booster to provide the high airflow required for rapid actuator stroking. The bypass can be adjusted to tune dynamic response across a wide range of actuator sizes.
Constructed with a rugged aluminum housing, the Type 6100 combines high flow capacity, soft-seat shutoff, multiple port sizes, broad temperature capabilities, and optional negative bias. It is also IEC 61508 SIL3 certified for use in demanding process control and safety-related applications.
Key Features
- High-flow pneumatic volume booster
- 1:1 signal-to-output ratio
- Designed for rapid actuator stroking
- Suitable for diaphragm and piston actuators
- Integral adjustable bypass valve
- Fixed deadband for stable operation
- Small incremental signal changes can bypass the primary valve
- High forward flow and exhaust capacity
- Soft valve seat design provides tight shutoff
- Eliminates leakage during steady-state operation
- Rugged aluminum housing
- 1/4″, 1/2″, and 3/4″ NPT supply and output port options
- Two 1/4″ NPT gauge ports
- Optional tapped exhaust vents
- Standard operation up to 200°F (93°C)
- Low-temperature option down to -62°F (-52°C)
- Expanded-temperature option up to 284°F (140°C)
- Optional -4 ±1 psig negative bias
- Optional stainless steel trim
- ATEX 2014/34/EU option available
- IEC 61508 SIL3 certified
Performance Characteristics
- Signal-to-Output Ratio: 1:1
- Maximum Supply Pressure: 250 psig (17 bar)
- Maximum Signal Pressure: 150 psig (10 bar)
- Output Accuracy: 1.0% of 100 psi output span
- Sensitivity: 1″ H2O (2.54 cm)
- Deadband: Under 0.2 psig (0.01 bar)
- Supply Pressure Effect: 0.1 psig (0.007 bar) for a 25 psig (1.7 bar) supply pressure change
- 3/4″ Forward Flow Coefficient (Cv): 5.0
- 3/4″ Exhaust Flow Coefficient (Cv): 3.5
- 1/2″ Forward Flow Coefficient (Cv): 4.5
- 1/2″ Exhaust Flow Coefficient (Cv): 3.5
- 1/4″ Forward Flow Coefficient (Cv): 2.0
- 1/4″ Exhaust Flow Coefficient (Cv): 2.5
- 3/4″ Exhaust Capacity: 80 scfm (2,264 Nl/min)
- 1/2″ Exhaust Capacity: 75 scfm (2,123 Nl/min)
- 1/4″ Exhaust Capacity: 35 scfm (991 Nl/min)
- Standard Temperature Range: -40°F to 200°F (-40°C to 93°C)
- Low Temperature Option: -62°F to 194°F (-52°C to 90°C)
- Expanded Temperature Option: -55°F to 284°F (-48°C to 140°C)
- Signal Port: 1/4″ NPT
- Supply/Output Ports: 1/4″, 1/2″, or 3/4″ NPT
- Exhaust Port: 7/16″ diameter standard or optional 1/4″ NPT tapped exhaust vents
- Gauge Ports: Two 1/4″ NPT
- Weight: 2.5 lbs (1.13 kg)
These performance characteristics provide the Type 6100 with the high forward and exhaust flow, low deadband, and sensitivity required for responsive control of large pneumatic actuators. The performance curves on page 1 of the specification sheet show regulated pressure versus flow for the available 1/4″, 1/2″, and 3/4″ port sizes.
How to Select the Right Configuration
Selecting the correct Type 6100 configuration depends on the required airflow, port size, operating temperature, trim materials, exhaust configuration, and application environment.
- Select the 1/4″ NPT model for applications requiring a forward Cv of 2.0 and exhaust capacity up to 35 scfm
- Select the 1/2″ NPT model for applications requiring a forward Cv of 4.5 and exhaust capacity up to 75 scfm
- Select the 3/4″ NPT model for applications requiring the highest available forward Cv of 5.0 and exhaust capacity up to 80 scfm
- Select the Low Temperature option for operating temperatures from -62°F to 194°F (-52°C to 90°C)
- Select the Expanded Temperature option for operating temperatures from -55°F to 284°F (-48°C to 140°C)
- Select Stainless Steel Trim when increased corrosion resistance is required for trim and internal components
- Select the Tapped Exhaust option when two 1/4″ NPT exhaust connections are required
- Select the Negative Bias option when a -4 ±1 psig bias is required
- Select the ATEX option when ATEX 2014/34/EU compliance is required
- Use the integral bypass valve to tune dynamic response for the actuator size and application
For additional guidance:
Applications
The Type 6100 High Flow Capacity Volume Booster is designed for pneumatic valve control applications requiring faster actuator response and increased forward and exhaust airflow.
- Pneumatic control valves
- Large-volume valve actuators
- Diaphragm actuators
- Piston actuators
- Valve positioner and actuator systems
- Fast-stroking control valves
- Throttling control applications
- Process control systems
- Industrial automation systems
- High-flow pneumatic systems
- Safety-related valve control systems
- Applications requiring negative bias to zero I/P transducers
Principle of Operation
The Type 6100 operates as a 1:1 pneumatic relay between the control signal and actuator. Signal pressure acts on the booster diaphragm assembly, causing the main supply or exhaust valve to respond when the pressure difference exceeds the unit’s fixed deadband.
The integral adjustable bypass allows small signal changes to reach the actuator without opening the primary booster valve. When a larger pressure differential occurs, the main valve opens to rapidly supply or exhaust air from the actuator. Adjusting the bypass allows the dynamic response of the booster and actuator system to be tuned for stable operation. The principle-of-operation diagram on page 2 identifies the supply, signal, atmosphere, and output flow paths through the booster.
Models & Configurations
Type 6100 Models
- 6100-BA = Aluminum Housing, 1/4″ NPT
- 6100-DA = Aluminum Housing, 1/2″ NPT
- 6100-EA = Aluminum Housing, 3/4″ NPT
Available Options
- E = Two 1/4″ NPT Tapped Exhaust Vents
- L = Low Temperature, -62°F to 194°F (-52°C to 90°C)
- P = Expanded Temperature, -55°F to 284°F (-48°C to 140°C)
- S = Stainless Steel Trim
- X = ATEX 2014/34/EU
- Z = Negative Bias, -4 ±1 psig
The ordering table on page 2 of the specification sheet identifies the three Type 6100 aluminum configurations and the available exhaust, temperature, stainless steel trim, ATEX, and negative-bias options.
Accessories
- Zinc Plated Steel Mounting Bracket: P/N 449-542-045
- Stainless Steel Mounting Bracket: P/N 449-542-050
- 1/4″ NPT Plated Steel Exhaust Screen/Muffler Fitting: P/N 445-761-008 (requires E option)
Materials of Construction
- Housing: Aluminum
- Bolting: Zinc Plated Steel
- Other Trim: Aluminum
- Internal Components: Aluminum
- Standard Elastomers: Nitrile
- Low Temperature Option Elastomers: Silicone
- Expanded Temperature Option Elastomers: EPDM
- Optional Trim: Stainless Steel
The Type 6100 uses aluminum housing and internal components in its standard configuration, with optional stainless steel trim available when additional corrosion resistance is required. Elastomer materials vary with the selected operating temperature option.
Technical Resources
- Product Data Sheet
- Installation Information
- CAD Models
- Product Certifications
- Engineering Support Resources
FAQs
What is the Type 6100 volume booster used for?
The Type 6100 is used to increase forward and exhaust airflow to pneumatic valve actuators, helping large-volume diaphragm and piston actuators stroke more rapidly in response to control signals.
What is the signal-to-output ratio of the Type 6100?
The Type 6100 provides a 1:1 signal-to-output pressure ratio.
What does the adjustable bypass valve do?
The adjustable bypass valve allows small incremental signal changes to reach the actuator without opening the main booster valve. It can be adjusted to tune dynamic response and provide stable operation across different actuator sizes.
What port sizes are available for the Type 6100?
The Type 6100 is available with 1/4″, 1/2″, or 3/4″ NPT supply and output ports. The signal port and two gauge ports are 1/4″ NPT.
What is the exhaust capacity of the Type 6100?
Exhaust capacity depends on port size. The 1/4″ model provides 35 scfm, the 1/2″ model provides 75 scfm, and the 3/4″ model provides 80 scfm.
What is the maximum supply pressure?
The Type 6100 has a maximum supply pressure of 250 psig (17 bar).
What is the deadband of the Type 6100?
The Type 6100 has a deadband of less than 0.2 psig (0.01 bar).
What temperature ranges are available?
The standard Type 6100 operates from -40°F to 200°F (-40°C to 93°C). A low-temperature option provides operation from -62°F to 194°F (-52°C to 90°C), while an expanded-temperature option provides operation from -55°F to 284°F (-48°C to 140°C).
Is stainless steel trim available?
Yes. Stainless steel trim is available as an option for the Type 6100.
What is the negative bias option used for?
The optional negative bias provides a -4 ±1 psig bias of the signal pressure and can be used to help zero I/P transducers in applicable pneumatic control systems.
Is the Type 6100 SIL3 certified?
Yes. The Type 6100/6200 volume booster series is IEC 61508 SIL3 certified.
Is an ATEX option available?
Yes. An ATEX 2014/34/EU option is available for the Type 6100.







