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Pressure Regulating Valves
- Pressure Regulating Valve(Precision Regulator for Analytical Equipment)
MODEL 6600 SERIES - The low-cost pressure regulating valve products
The KOFLOC Pressure Regulating Valve MODEL 6600 SERIES is a precision control valve for incorporation into sensitive analytical equipment, with focus on easy assimilation, cleanness and leak-integrity.

KOFLOC MODEL 6600 SERIES Pressure Regulating Valve
Quick Review
Precision Control
The KOFLOC Pressure Regulating Valve MODEL 6600 SERIES is a compact, lightweight precision pressure regulator with superior repeatability to provide reliable and speedy regulations.
Panel Mount
The KOFLOC Pressure Regulating Valve MODEL 6600 SERIES is compact and it is designed as a panel mount unit for easy assimilation into sensitive analytical equipment.
KOFLOC Dependability
KOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
Leak Integrity
The KOFLOC Pressure Regulating Valve MODEL 6600 SERIES is a non-bleed valve and has successfully been put to rigorous leak tests.
Cleanness
Components of the KOFLOC Pressure Regulating Valve MODEL 6600 SERIES are carefully cleaned before assembly, making this product ideal for used as a component of high-sensitivity instruments for analysis or other R&D activities.
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Precision Control
The KOFLOC Pressure Regulating Valve MODEL 6600 SERIES is a compact, lightweight precision pressure regulator with superior repeatability to provide reliable and speedy regulations.
Panel Mount
The KOFLOC Pressure Regulating Valve MODEL 6600 SERIES is compact and it is designed as a panel mount unit for easy assimilation into sensitive analytical equipment.
KOFLOC Dependability
KOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
Leak Integrity
The KOFLOC Pressure Regulating Valve MODEL 6600 SERIES is a non-bleed valve and has successfully been put to rigorous leak tests.
Cleanness
Components of the KOFLOC Pressure Regulating Valve MODEL 6600 SERIES are carefully cleaned before assembly, making this product ideal for used as a component of high-sensitivity instruments for analysis or other R&D activities.
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Fatures
Applications
Standard Specifications
| Max. primary pressure | 784kPa |
|---|---|
| Secondary control pressure | Type A:9.8-294kPa |
| Type B:29.4-588kPa | |
| Min. operating differential pressure | 49kPa |
| Proof pressure | 784kPa |
| Repeatability | Within ±1% of the rated pressure |
| Aging | Within ±1.5% of the rated pressure |
| Temperature characteristic | Within ±1%/10°C of the rated pressure |
| Heat resistance | Aluminum body:60°C;Stainless steel body:120°C |
| Flow rating | See the rated value diagrams. |
| Connection end | Rc1/8,Rc 1/4 |
| Materials of parts exposed to fluids | A:Al,Brass,NBR,Duracon |
| SS:SUS316,Viton,fluorocarbon resin |
Optional Specifications
Notes:
♦IN/OUT joints only are optionally available. Lock plug is used for the gauge port.
♦Press fitting of the OUT side filter is actually custom-made.Contact us for consultation.
♦Pressure gauge port and OUT port are identical. Either will do for pressure gauge port or OUT port.
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♦Press fitting of the OUT side filter is actually custom-made.Contact us for consultation.
♦Pressure gauge port and OUT port are identical. Either will do for pressure gauge port or OUT port.
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Lineup
| Model/Type | Set pressure | Max. flow rate |
|---|---|---|
| 6600A | 9.8~294kPa | 10L/MIN |
| 6600B | 29.4~588kPa | 10L/MIN |
| 6600AL | 9.8~294kPa | 20L/MIN |
| 6600BL | 29.4~588kPa | 20L/MIN |





