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Valves

At PBi, our valve fabrication remains the core of our manufacturing enterprise and like other areas of our business, has grown. We have worked diligently and are constantly auditing our practices, improving our quality, expanding our valve technology and product offering. Today, PBi offers several different sizes and multiple styles to run on the most popular application machinery on the market.

Click here for more information.


How Does it Work?

Open/Release Mode

(Releasing CO2 emitted from coffee)

This drawing is a cross section of a premade coffee bag with a one-way valve in the open/release mode. When pressure inside a sealed package increases beyond the valve opening pressure, the seal between the rubber disc and the valve body si momentarily interrupted and pressure can escape out of the package.

Air-Tight Closed Position

The CO2 pressure released from the fresh roasted coffee beans is low; therefore the valve is closed with an air-tight seal.


Valve Functionality

Pacific Bag one-way degassing valves are designed to allow pressure to be released from an airtight package while not allowing external atmosphere (i.e. air with 20.9% O2) to enter the package. A one-way degassing valve is useful for packaging products that are sensative to oxygen and moisture and also release gas or entrapped air. The one-way degassing valve can be attached to a flexible package to relieve pressure built up in the package while protecting the interior contents from the damaging effects of oxygen and moisture.

When pressure inside a sealed package increases beyond the valve opening pressure, a rubber disk in the valve momentarily opens to allow gas to escape out of the package. As gas is released and the pressure inside the package drops below the valve close pressure, the valve closes.

Product Data Sheet for the PBi One-Way Degassing Valve

Typical Applications

  • Fresh roasted coffee which generates gas inside the bag and also needs protection from oxygen and moisture.
  • Various specialty foods that have active ingredients such as yeast and cultures.
  • Large bulk flexible packages which require the release of excess air from packages for palletization (e.g. 33 lbs. pet food, resin, etc.)
  • Other flexible packages with polyethylene (PE) interior that require one-way release of pressure from inside the package.

Order Valves here.


Heat Sealing  |  Label-Style  |  Special Products

Heat Sealing Valves

101N

Filter: No
Material: PE
Open/Close Pressure:20-70/5-45 mm H2O

Heat seal degassing valve without filter for manual and automatic equipment that runs Wipf/Sig valves.

FUNCTION: One-way degassing valve for whole bean coffee or other large, off-gassing particles that need protection from oxygen and moisture. Valve adheres to the polyethylene (PE) interior of the package via heat seal or ultrasonic seal for application at high speeds and can be applied using existing equipment in the field.


101NF

Filter: Yes
Material: PE
Open/Close Pressure:20-70/5-45 mm H2O

Heat seal degassing valve with filter for manual and automatic equipment that runs Wipf/Sig valves.

FUNCTION: One-way degassing valve for ground or whole bean or coffee other off-gassing products that need protection from oxygen and moisture. Valve adheres to the polyethylene (PE) interior of the package via heat seal or ultrasonic seal for application at high speeds and can be applied using existing equipment in the field.


201N

Filter: No
Material: PE
Open/Close Pressure:20-70/5-45 mm H2O

Heat seal degassing valve without filter sized for equipment that runs Goglio/Fres-co valves.

FUNCTION: One-way degassing valve for whole bean coffee or other large, off-gassing particles that need protection from oxygen and moisture. Valve adheres to the polyethylene (PE) interior of the package via heat seal for application at high speeds and can be applied using existing equipment in the field including Goglio/Fre-sco machines.


201NF

Filter: Yes
Material: PE
Open/Close Pressure:20-70/5-45 mm H2O

Heat seal degassing valve with filter sized for equipment that runs Goglio/Fres-co valves.

FUNCTION: One-way degassing valve for ground or whole bean coffee or other off-gassing products that need protection from oxygen and moisture. Valve adheres to the polyethylene (PE) interior of the package via heat seal for application at high speeds and can be applied using existing equipment in the field including Goglio/Fres-co machines.


401NF

Filter: Yes
Material: PE
Open/Close Pressure:20-70/5-45 mm H2O

Heat seal degassing valve with filter sized for equipment that runs ICA small valves.

FUNCTION: One-way degassing valve for ground and whole bean coffee or other off-gassing products that need protection from oxygen and moisture. Valve adheres to the polyethylene (PE) interior of the package via heat seal for application at high speeds and can be applied using existing equipment in the field including ICA machines set up for the ICA small valve.


Pressure Sensitive / Label Style Valves

301PV

Filter: No
Material: PET/Polystyrene
Open/Close Pressure:75-150/25-75 mm H2O

Label Style Degassing Valve.

FUNCTION: Packaging of institutional coffees (e.g. O.C.S, Frac Pack) Coffees and other off gassing coffees. Valve adheres to exterior of the package via pressure sensitive adhesive that permits application at high speeds and can be applied using existing equipment in the field including Plitek and Accraply.


Special Products

101NFV

Filter: Yes
Material: PE
Open/Close Pressure:20-70/5-45 mm H2O

Filtered Vent Valve.

FUNCTION: Filtered vent valve allowing trapped air out of an airtight bag. Typically used in the deflation of pet food bags. Sold as a component in valve for our pet food packaging customers.