Description
Overview
The Type 750V Vacuum Regulator is designed for pneumatic systems that require precise pressure control both above and below atmospheric pressure. A single regulator can control output from 29″ Hg vacuum through positive pressures up to 150 psig, providing a versatile solution for vacuum and pressure control applications.
The Type 750V incorporates a fixed negative 15 psig bias spring to maintain vacuum outputs up to 29″ Hg and an adjustable opposing range spring that increases controlled pressure output up to 150 psig. An aspirator tube responds to changes in flow velocity to help minimize output pressure droop and maintain stable regulation as flow conditions change.
With sensitivity to output pressure deviations as small as 1/2 inch water column, multiple port sizes, and pipe, panel, or bracket mounting options, the Type 750V provides precise and flexible vacuum regulation for industrial equipment, process systems, and vacuum applications.
Key Features
- Controls pressures above and below atmospheric pressure
- Wide control range from 29″ Hg vacuum to 150 psig
- Fixed negative 15 psig bias spring for vacuum control
- Adjustable opposing range spring for positive pressure control
- 1/4″, 3/8″, and 1/2″ NPT port sizes
- Optional BSPP porting
- High sensitivity to output pressure changes
- Senses output pressure deviations within 1/2 inch water column
- Aspirator tube design minimizes pressure droop
- Stable output under changing flow conditions
- On-line maintenance without removing the regulator from the air line
- Pipe, panel, or bracket mounting
- Stainless steel adjustment options available
- Tamper-proof cover option available
- ATEX 2014/34/EU option available
Performance Characteristics
- Port Sizes: 1/4″, 3/8″, or 1/2″ NPT/BSPP inlet and outlet
- Gauge Ports: Two 1/4″ NPT/BSPP
- Output Pressure Ranges: Vacuum to 2 psig, Vacuum to 15 psig, Vacuum to 30 psig, Vacuum to 60 psig, Vacuum to 100 psig, and Vacuum to 150 psig
- Maximum Vacuum Output: Up to 29″ Hg
- Maximum Supply Pressure: 250 psig (17.5 bar)
- Vacuum Flow Capacity: 2.5 scfm (71 Nl/min) at 29″ Hg vacuum (740 mm Hg)
- Positive Pressure Flow Capacity: 40 scfm (1,132 Nl/min) at 100 psig (6.9 bar) supply and 20 psig (1.4 bar) output
- Exhaust Capacity: 4 scfm (120 Nl/min) with downstream pressure 5 psig (0.35 bar) above set pressure
- Sensitivity: 1/2″ (12.7 mm) water column
- Supply Pressure Effect: Less than 0.1 psi (0.01 bar) output variation for a 25 psi (1.7 bar) supply pressure change
- Operating Temperature: -40°F to 200°F (-40°C to 93.3°C)
- Weight: 1 lb, 15 oz (0.88 kg)
- Mounting: Pipe, panel, or bracket
These performance characteristics allow the Type 750V to provide sensitive, stable pressure control across vacuum and positive pressure applications while minimizing the effects of changing supply pressure and flow conditions.
How to Select the Right Configuration
Selecting the correct Type 750V configuration depends on the required port size, output pressure range, connection type, installation environment, and adjustment requirements.
- Select the Vacuum to 2 psig range for applications operating primarily under vacuum with limited positive pressure requirements
- Select the Vacuum to 15 psig or Vacuum to 30 psig range for low-pressure vacuum and pressure control applications
- Select the Vacuum to 60 psig range for applications requiring a broader positive pressure adjustment range
- Select the Vacuum to 100 psig or Vacuum to 150 psig range for systems requiring both vacuum control and higher positive pressure capability
- Choose 1/4″, 3/8″, or 1/2″ porting based on system piping and flow requirements
- Select BSPP Porting when BSPP process connections are required
- Choose the Stainless Steel Knob Stem option when additional corrosion resistance is desired at the adjustment mechanism
- Select the Stainless Steel Adjust Screw option for maximum corrosion resistance at the adjustment screw
- Choose the Tamper-proof Cover option to help prevent casual adjustment of the output pressure
- Select the ATEX option when ATEX 2014/34/EU compliance is required
For additional guidance:
Applications
The Type 750V is well suited for applications requiring controlled vacuum levels, positive pressure regulation, or operation across both sides of atmospheric pressure. The typical installation diagrams show configurations for both rapid evacuation systems and conventional vacuum control at a tank or application.
- Vacuum tank pressure control
- Vacuum system regulation
- Tank evacuation systems
- Process vacuum control
- Vacuum pump systems
- Industrial automation equipment
- Pneumatic process control
- Test and measurement equipment
- OEM pneumatic systems
- Applications requiring both vacuum and positive pressure control
Models & Configurations
Type 750V Ordering Structure
750V-[Port Size][Range][Options]
Port Sizes
- B = 1/4″
- C = 3/8″
- D = 1/2″
Pressure Ranges
- A = Vacuum to 2 psig (-1 to 0.15 bar)
- C = Vacuum to 15 psig (-1 to 1 bar)
- D = Vacuum to 30 psig (-1 to 2 bar)
- E = Vacuum to 60 psig (-1 to 4 bar)
- G = Vacuum to 100 psig (-1 to 7 bar)
- F = Vacuum to 150 psig (-1 to 10 bar)
Available Options
- K = Stainless Steel Knob Stem; knob itself is phenolic plastic
- S = Stainless Steel Adjust Screw; hex-head stainless steel adjustment screw for maximum corrosion resistance
- T = Tamper-proof Cover; helps prevent casual adjustment of output pressure
- U = BSPP Porting
- X = ATEX 2014/34/EU
The ordering codes and available configurations are specified in the Type 750V ordering guide on page 2 of the product data sheet.
Accessories
- Mounting Bracket, Zinc-Plated Steel: P/N 446-707-025
- Vacuum to 15 psig Gauge: P/N 446725042
- Vacuum to 30 psig Gauge: P/N 446725043
- Vacuum to 60 psig Gauge: P/N 446725044
- Vacuum to 150 psig Gauge: P/N 446725045
The available gauges feature a 1/4″ NPT back mount, 2″ face, and dual-scale indication.
Materials of Construction
- Body: Die-cast aluminum alloy
- Internal Components: Stainless steel, brass, plated steel, and acetal
- Diaphragm: Buna-N elastomer with polyester fabric
- Knob: Phenolic plastic
- Spring: Music wire
The Type 750V combines a durable die-cast aluminum body with metallic and engineered internal components for dependable industrial service.
Technical Resources
FAQs
What is the Type 750V vacuum regulator used for?
The Type 750V is designed for systems that require controlled pressure both above and below atmospheric pressure. It can regulate from vacuum conditions up through positive pressures as high as 150 psig.
What pressure range can the Type 750V control?
A single Type 750V can control pressures from up to 29″ Hg vacuum through 150 psig positive pressure. Individual models are available with Vacuum to 2, 15, 30, 60, 100, and 150 psig output ranges.
How sensitive is the Type 750V?
The Type 750V senses output pressure deviations within 1/2 inch (12.7 mm) water column, allowing precise regulation of vacuum and positive pressure.
How does the Type 750V maintain stable output pressure?
The regulator incorporates an aspirator tube that adjusts the air supply according to flow velocity. This dampening action helps minimize pressure droop and makes the regulator less sensitive to changes in flow.
What is the maximum supply pressure for the Type 750V?
The maximum supply pressure is 250 psig (17.5 bar).
What port sizes are available?
The Type 750V is available with 1/4″, 3/8″, and 1/2″ inlet and outlet port sizes. Standard NPT connections are available, with BSPP porting offered as an option.
What is the operating temperature range?
The Type 750V has an operating temperature range of -40°F to 200°F (-40°C to 93.3°C).
Can the Type 750V be panel mounted?
Yes. The Type 750V can be pipe, panel, or bracket mounted to accommodate different installation requirements.
Can the Type 750V be serviced without removing it from the air line?
Yes. The Type 750V is designed for on-line maintenance and can be serviced without removing the regulator from the air line.
Is an ATEX option available?
Yes. An ATEX 2014/34/EU option is available for the Type 750V.
