Description

DHR SERIES

Dual Heated Regulator Electrically Heated

The Dual Heated Pressure Regulator is designed to supply heat to samples entering instrumentation systems. It can be used to preheat liquids, to prevent condensation of gases or to vaporize liquids prior to gas analysis. Signifi cant space savings can be realized due to the utilization of two discrete regulators that are heated by a common source. The modular design of the Dual Heated Regulator consists of a heating element and pressure control sections. The pressure control sections are patterned after the time proven design of the PR-1 pressure reducing regulator and provides the same excellent outlet pressure stability. The heat exchanger section is made up of a body and a heating element. The Dual Heated Pressure Regulators are ATEX approved. The electrical components of this unit are securely housed in a Class A, B, C, D condulet assuring that there is always an adequate fl ame path between the environment and the controller. Safety considerations can be further enhanced by using the optional TCO (Thermal Cut Out) heater cartridge and proportional controller. These features enable the unit to boast a T3 rating with 150 watts of power.

Typical Applications Analytical process sample conditioning systems:
• Petrochemical refineries
• Chemical production facilities
• Pilot plants (chemical & petrochemical)
• LNG loading and off -loading points
• Natural gas pipeline sampling CONSTRUCTION 316L stainless steel OUTLET PRESSURES 0–10, 0–25, 0–50, 0–100, 0–250, and 0–500 psig OPERATING TEMPERATURE up to 380° F (193° C) HEATING CAPACITY RANGES (IN WATTS) 40, 50, 100, and 150 CV COEFFICIENTS 0.06, 0.025, 0.2 CERTIFICATIONS ATEX Directive 94/9/EC Certifi cation # TRL03ATEX11001X

Features & Benefits
• Optional Hastelloy® C-276 and Monel®
• Electropolished body with better than 25 Ra finish in diaphragm cavity for an optimal sealing surface
• Bubble-tight shutoff
• Available in 120VAC or 240VAC
• Optional TCO heating cartridge and proportional controller

 

Maximum Temperature & Operating Inlet Pressures
Seat Material Maximum Temperature* @ Maximum Operating Inlet Pressure
Tefzel® up to 175° F (up to 80° C) @ 3600 psig (24.82 MPa)
176° F to 300° F (80° C to 148° C) @ 1000 psig (6.90 MPa)
301° F to 380° F (148° C to 193° C) @ 400 psig (2.76 MPa)
High Density PTFE up to 175° F (up to 80° C) @ 3600 psig (24.82 MPa)
176° F to 300° F (80° C to 148° C) @ 1000 psig (6.90 MPa)
301° F to 380° F (148° C to 193° C) @ 400 psig (2.76 MPa)
CF PTFE up to 175° F (up to 80° C) @ 3600 psig (24.82 MPa)
176° F to 300° F (80° C to 148° C) @ 1000 psig (6.90 MPa)
301° F to 380° F (148° C to 193° C) @ 400 psig (2.76 MPa)
PCTFE up to 175° F (up to 80° C) @ 3600 psig (24.82 MPa)
Polyimide up to 175° F (up to 80° C) @ 6000 psig (41.37 MPa)
PEEK™ up to 175° F (up to 80° C) @ 6000 psig (41.37 MPa)

* Temperatures in excess of 175° F (80° C) require the use of a metal knob or the Tamper Proof option

Attachements

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