Kofloc Model 6700 Series Pressure Regulating Valve

The Kofloc Model 6700 Series Pressure Regulating Valve is a precision-engineered diaphragm regulator designed to deliver constant outlet pressure regardless of upstream fluctuations. This series is the ideal “companion” for Kofloc variable area flowmeters (rotameters), ensuring that the pressure remains stable so that flow readings stay accurate and repeatable.

With its compact footprint and high-sensitivity adjustment, the 6700 Series is a staple in laboratory gas panels, pilot plants, and industrial gas distribution systems.

Description

The Kofloc Model 6700 Series is built to handle the rigorous demands of precision gas management. It utilizes a high-sensitivity diaphragm and a finely tuned spring mechanism to balance the gas pressure. This allows the valve to react instantaneously to changes in the supply line, “flattening” pressure spikes before they reach sensitive downstream components.

The 6700 series is available in several variations to match specific gas types and pressure ranges. It features a non-relief design (standard), which prevents the process gas from escaping into the atmosphere a critical feature when handling expensive or specialized gases. Its internal flow path is designed for cleanliness, minimizing particle generation and making it suitable for high-purity gas applications where contamination must be avoided.

Brand

Kofloc

Kofloc

The natural environment is preserved through the balance of solids, liquids and gases that exist on the earth. However, human civilization has caused pollution that has greatly damaged our environment. The task of the present generation is to restore our environment to its natural healthy state. And this is also the greatest challenge for 21st century science and technology.

KOFLOC's corporate motto is "A Scientific Approach for Fluids." In other words, we create products that scientifically measure and control the balance of liquids and gases. We trust that through our work we are making a contribution to the regeneration of the environment and to the establishment of a prosperous society.

Features

  • Ultra-Stable Regulation: Minimizes the “inlet pressure effect,” ensuring a constant secondary pressure.
  • Compact Miniature Body: Designed for easy integration into tight instrument panels and gas cabinets.
  • Smooth Pressure Tuning: High-resolution adjustment knob for precise setpoint control.
  • Non-Relief Type: Safely manages gases without venting to the environment.
  • High-Purity Compatible: Meticulously cleaned and degreased during the manufacturing process.
  • Durability: Rugged construction designed for thousands of adjustment cycles without drift.

Specification

FeatureSpecification
Regulation PrincipleDiaphragm Type
Max Inlet Pressure1.0 MPa (10 Bar)
Adjustable Outlet Pressure0.02 MPa to 0.5 MPa (Standard)
Operating Temperature5°C to 60°C
Wetted MaterialsBrass (Nickel Plated) or Stainless Steel, NBR/FKM
Connection SizeRc 1/4 or Rc 1/8
Applicable GasesAir, $N_2$, $Ar$, $He$, $H_2$, $CO_2$, etc.

 

Applications

The Kofloc Model 6700 Series is highly effective for:

  • Flowmeter Stabilization: Maintaining stable pressure at the inlet of rotameters to prevent “float bounce.”
  • Analytical Instruments: Providing a steady pressure source for detectors and sensors.
  • Gas Chromatography: Regulating carrier gas supply for laboratory analysis.
  • Pneumatic Actuators: Supplying constant pilot pressure for delicate air-driven valves.
  • Fuel Cell R&D: Managing stable gas feed pressures during performance testing.