High temperature in your process can be a difficult issue tackle. Traditional control valves often bring temperature limits that are simply not acceptable in some more advanced or sophisticated (research) applications. With Equilibar back pressure regulators, PCS will help you overcome this problem.
Other Equilibar back pressure regulators can be configured to withstand temperatures up to 450ยฐC (see all products), which is already quite high compared to other process control products in the market. But with the High Temperature Series using graphite o-rings and Grafoilยฎ diaphragms, temperatures up to 550ยฐC are even possible!
The ‘standard’ High Temperature models – that are anything but standard, compared to conventional products – still have a rangeability of 1:7.000 or 1:35.000 (see Specifications on the left) and that is significantly more than what users usually get with other products.
Back pressure regulators in the High Temperature Series are often applied in applications where condensation of the media coming from a reactor must be prevented to go back into the liquid phase. The multi-orifice design copes well with two-phase-flow, which helps to protect the composition of the exhaust from the reaction.
The use of graphite o-rings require a bigger torque to get good sealing. Therefore we reduce this problem in the ULHT (Ultra High Temperature) series. We keep the diaphragm in place. Furthermore, we use Silver coated Inconel o-rings in the unit to create a seal to the environment. Our blog about this topic is especially relevant, see the applications tab on the left side of this page.
Main specifications of High Temperature Series summarized For complete overview, please see the product brochure, installation & maintenance guide and drawings via the tabs on the left side of this table. Contact us if you cannot find what you are looking for! |
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Often used in | Processes working with high temperature process media Works well with gas, liquids and mixed-phase media |
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Available models* | HT1 & HT2 | HTF1 & HTF2 | ||
* Customization possible – see for example our blog on high temperature back pressure control | ||||
Maximum operating pressure | All HT and HTF units mentioned above are rated at 345 bar | 5.000 PSI | |||
*Customization possible | ||||
Flow coefficient (min-max Cv)* & turn down ratio | HT1 & HT2 1E-05…0,07 1:7.000 | HTF1 & HTF2 1E-05…0,35 1:35.000 |
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Dead volume | HT1 2,62 mL 0,160 in3 | HT2 3,70 mL 0,226 in3 | HTF1 8,93 mL 0,545 in3 | HTF2 8,93 mL 0,545 in3 |
MAOT in ยฐC | โค 450ยฐC for metallic body + metal diaphragm + grafoil gaskets | |||
Port sizes | HT1 1/8″ NPT or BSPP | HT2 1/4″ NPT or BSPP | HTF1 1/8″ NPT or BSPP | HTF2 1/4″ NPT or BSPP |
Port thread options | HiP, Swagelok VCO/VCRยฎ, Tube Stub, HPLC, Autoclave Speed-Bite Custom options available on request |
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Body & cap material standard | Stainless Steel 316/316L (1.4401/1.4404) | |||
Body & cap material options | Hastelloy C276, Titanium, Zirconium PTFE, PVDF, PEEK, PVC, Monel |
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Diaphragm materials | Grafoil *Diaphragm thickness will be selected by our engineers based on your process parameters |
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O-ring materials | Vitonยฎ (FKM), Kalrezยฎ (FFKM), PTFE, EPDM, BunaโN | |||
Options | Can be supplied including mounting brackets Oxygen cleaning |
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Spare part kits and/or Rebuild kits optionally available See: Spare Parts and Maintenance |
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Electronic & manual pilot control options available See: How to pilot your back pressure regulator |
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