The TESCOM 44-4700 series pressure regulator is engineered to handle special, flammable, and industrial gases in low-pressure and vacuum systems with unmatched safety and precision. Its diffusion-proof metal diaphragm seal ensures gas purity and zero leakage, making it ideal for analytical instruments, sampling processes, and pilot plant operations where contamination risks are critical.

Key Features:

Metal Diaphragm Sealing: Eliminates diffusion and ensures hermetic containment of hazardous or valuable gases.
Low-Pressure/Vacuum Performance: Maintains stable regulation in challenging environments down to 0.1 psig (0.007 bar) for vacuum applications.
Corrosion Resistance: 316 stainless steel construction with Hastelloy®/Vespel® seals for compatibility with aggressive gases.
Compact Design: Lightweight (2.5 lb/1.1 kg) and space-saving for benchtop or inline installations.

Technical Advantages:

Pressure Handling: Inlet up to 3,000 psig (207 bar), outlet adjustable to 0–150 psig (0–10.3 bar).
Leakage Standards: UL-rated low leakage (<10⁻⁷ mbar·L/s helium) for toxic or flammable gases.
Temperature Range: -40°C to 71°C (-40°F to 160°F) with optional PFA seats for extreme media.

Applications:

Analytical Systems: Gas chromatography, mass spectrometry, and environmental monitoring.
Chemical Processing: Handling hydrogen, ammonia, and other pyrophoric gases.
Energy Research: Fuel cell testing, CO₂ capture, and cryogenic systems.
Semiconductor Manufacturing: Ultra-pure gas supply for wafer fabrication.

Why Choose 44-4700?

Safety Compliance: Meets USP Class VI, BPE, and SEMI F57 standards for biopharm and semiconductor industries.
Reliability: No elastomer-to-gas contact in metal-sealed models for contamination-free operation.
Ease of Use: Quick-disconnect fittings and tool-free maintenance reduce downtime.

specifications:

Parameter	Value
Inlet Pressure	- Withstands pressure changes from 50 mm Hg up to: - 15 psig (1 bar) - 50 psig (3.4 bar) - 100 psig (6.9 bar) - 150 psig (10.3 bar)
Material	- Valve Body/Diaphragm: 316 stainless steel (corrosion/high-temperature resistant) - Valve Cover: Nickel-free copper - Seat: Low-friction, high-wear Teflon® - Spring/Main Valve/Deviation Parts: 316 stainless steel - Other Components: 316 stainless steel
Ambient Operating Temperature	-40°C to 74°C (-40°F to 165°F)
Port Sizes and Types	- Sizes: 1/4", 3/8" - Standards: SAE, NPTF, MS33649, HPIC, etc.
Flow Capacity	- Cv = 0.04 - Cv = 0.30
Load Type	Spring (ensures stable pressure regulation)
Weight	1.2 kg/2.75 lb (lightweight design)

44-4700 seriesTESCOM industrial back pressure gas regulator selection reference

Inquiry Cart 0

TESCOM 44-4700 Series Pressure Regulator For Low Pressure And Vacuum Environments

Numatics Valve

2 Position 2 Way Solenoid Valve

2 Position 3 Way Solenoid Valve

2 Position 4 Way Solenoid Valve

2 Position 5 Way Solenoid Valve

Rosemount Instrument

Pulse Dust Removal Valve

Topworx Limit Switch

Angle Seat Valve

Parker Valve

Explosion Proof Solenoid Valve

Rexroth Hydraumatic Parts

Filter Pressure Reducer

Bus Valve Island

Piston Rod Cylinder

Tescom Regulator And Valve

Rodless Cylinder

Rotary Drive

Attachments

Sensor Technology

Valve Island

Bus Connection

Reversing valve

Pressure Regulating Valve

Grab And Vacuum Technology

Air Handling Unit

Pneumatic Connection Technique

Throttle Valve

Proportional Valve

Proportional Amplifier

Directional Valve

Pressure Valve

Flow Valve

Check Valve

Cartridge Valve

Pressure Relay

Vane Pump

Gear Pump

Axial Piston Pump

Radial Piston Pump

Hand Pump

Cylinders

TESCOM 44-4700 Series Pressure Regulator For Low Pressure And Vacuum Environments