Overpressure Blast Valve Archives - Bunker Builders https://www.bunkerbuilders.com/product-tag/overpressure-blast-valve/ Fri, 12 Dec 2025 12:40:41 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://www.bunkerbuilders.com/wp-content/uploads/2025/10/logo-coming-soon-300x300-1-150x150.png Overpressure Blast Valve Archives - Bunker Builders https://www.bunkerbuilders.com/product-tag/overpressure-blast-valve/ 32 32 GK 100-800 – Gastight Valve with Motorized Operation https://www.bunkerbuilders.com/product/gk-100-800-gastight-valve-with-motorized-operation/?utm_source=rss&utm_medium=rss&utm_campaign=gk-100-800-gastight-valve-with-motorized-operation https://www.bunkerbuilders.com/product/gk-100-800-gastight-valve-with-motorized-operation/#respond Fri, 12 Dec 2025 12:38:46 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=829 GK gastight valves are flow regulation valves designed for installation on the air ducts of ventilation systems of shelters and protective structures. The valves are commonly used as shut-off devices to stop or control the airflow and protect the inner space.

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GK gastight valves are flow regulation valves designed for installation on the air ducts of ventilation systems of shelters and protective structures. The valves are commonly used as shut-off devices to stop or control the airflow and protect the inner space.

Advantages

  • GK gastight shut-off valves have special design with double eccentric axle.

  • GK valves can be delivered with manual and motorized drive.

  • The valves are designed to hold a high static pressure loads and can be used in ventilation systems of shelters and protected facilities.

  • The valves have a welded steel body or optionally can be made from stainless steel for very corrosive environments.

  • The valve can be installed at any direction on the air duct.

  • Minimal effort to operate the valve;

  • When opening / closing, there is no friction of the sealing ring on the seat;

  • Long service life of the sealing elements;

  • Replacing the seal is a simple procedure that does not require special tools;

  • Continuous sealing surface (360 degrees) provides the highest class of tightness.

GK 100-800 – Gastight Valve with Motorized Operation (Motor + Gear)

  • Nominal opening diameter: 100-800 mm

Download Brochure >

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]]> https://www.bunkerbuilders.com/product/gk-100-800-gastight-valve-with-motorized-operation/feed/ 0 829 GK 400-800 – Gastight Valve with Manual Operation https://www.bunkerbuilders.com/product/gk-400-800-gastight-valve-with-manual-operation/?utm_source=rss&utm_medium=rss&utm_campaign=gk-400-800-gastight-valve-with-manual-operation https://www.bunkerbuilders.com/product/gk-400-800-gastight-valve-with-manual-operation/#respond Fri, 12 Dec 2025 12:36:26 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=826 GK gastight valves are flow regulation valves designed for installation on the air ducts of ventilation systems of shelters and protective structures. The valves are commonly used as shut-off devices to stop or control the airflow and protect the inner space.

The post GK 400-800 – Gastight Valve with Manual Operation appeared first on Bunker Builders.

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GK gastight valves are flow regulation valves designed for installation on the air ducts of ventilation systems of shelters and protective structures. The valves are commonly used as shut-off devices to stop or control the airflow and protect the inner space.

Advantages

  • GK gastight shut-off valves have special design with double eccentric axle.

  • GK valves can be delivered with manual and motorized drive.

  • The valves are designed to hold a high static pressure loads and can be used in ventilation systems of shelters and protected facilities.

  • The valves have a welded steel body or optionally can be made from stainless steel for very corrosive environments.

  • The valve can be installed at any direction on the air duct.

  • Minimal effort to operate the valve;

  • When opening / closing, there is no friction of the sealing ring on the seat;

  • Long service life of the sealing elements;

  • Replacing the seal is a simple procedure that does not require special tools;

  • Continuous sealing surface (360 degrees) provides the highest class of tightness.

GK 400-800 – Gastight Valve with Manual Operation (gear)

  • Nominal opening diameter: 400-800 mm

Download Brochure >

The post GK 400-800 – Gastight Valve with Manual Operation appeared first on Bunker Builders.

]]> https://www.bunkerbuilders.com/product/gk-400-800-gastight-valve-with-manual-operation/feed/ 0 826 GK 100-350 – Gastight Valve with Manual Operation https://www.bunkerbuilders.com/product/gk-100-350-gastight-valve-with-manual-operation/?utm_source=rss&utm_medium=rss&utm_campaign=gk-100-350-gastight-valve-with-manual-operation https://www.bunkerbuilders.com/product/gk-100-350-gastight-valve-with-manual-operation/#respond Fri, 12 Dec 2025 12:36:01 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=823 GK gastight valves are flow regulation valves designed for installation on the air ducts of ventilation systems of shelters and protective structures. The valves are commonly used as shut-off devices to stop or control the airflow and protect the inner space.

The post GK 100-350 – Gastight Valve with Manual Operation appeared first on Bunker Builders.

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GK gastight valves are flow regulation valves designed for installation on the air ducts of ventilation systems of shelters and protective structures. The valves are commonly used as shut-off devices to stop or control the airflow and protect the inner space.

Advantages

  • GK gastight shut-off valves have special design with double eccentric axle.

  • GK valves can be delivered with manual and motorized drive.

  • The valves are designed to hold a high static pressure loads and can be used in ventilation systems of shelters and protected facilities.

  • The valves have a welded steel body or optionally can be made from stainless steel for very corrosive environments.

  • The valve can be installed at any direction on the air duct.

  • Minimal effort to operate the valve;

  • When opening / closing, there is no friction of the sealing ring on the seat;

  • Long service life of the sealing elements;

  • Replacing the seal is a simple procedure that does not require special tools;

  • Continuous sealing surface (360 degrees) provides the highest class of tightness.

GK 100-350 – Gastight Valve with Manual Operation (lever)

  • Nominal opening diameter: 100-350 mm

Download Brochure >

The post GK 100-350 – Gastight Valve with Manual Operation appeared first on Bunker Builders.

]]> https://www.bunkerbuilders.com/product/gk-100-350-gastight-valve-with-manual-operation/feed/ 0 823 PRV 800 – Differential Pressure Valve https://www.bunkerbuilders.com/product/prv-800-differential-pressure-valve/?utm_source=rss&utm_medium=rss&utm_campaign=prv-800-differential-pressure-valve https://www.bunkerbuilders.com/product/prv-800-differential-pressure-valve/#respond Fri, 12 Dec 2025 12:28:26 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=820 BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

The post PRV 800 – Differential Pressure Valve appeared first on Bunker Builders.

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BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

  • BVNC overpressure valves were developed for use in civil defense shelters, bunkers, safe rooms and other protected spaces.​

  • BVNC line of valves includes a wide range of valves for different airflows.

  • BVNC are automatic action valves designed to protect from external blast wave pressure.

  • BVNC designed for controlled release of air from the shelter when positive pressure (overpressure) rises to required level.

  • The valves are extremely durable and can operate in a wide range of temperatures and resistant to corrosion.

  • The valves are designed for installation on ventilation openings or as part of the duct.

PRV 800 – Differential Pressure Valve (Regulated)

  • Regulated airflow: 50-800 m3/h

  • Mechanical shock resistance: >12 g

  • Standard flange: 8 Inch

Download Brochure >

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]]> https://www.bunkerbuilders.com/product/prv-800-differential-pressure-valve/feed/ 0 820 BVNO 3300 – Overpressure Blast Valve https://www.bunkerbuilders.com/product/bvno-3300-overpressure-blast-valve/?utm_source=rss&utm_medium=rss&utm_campaign=bvno-3300-overpressure-blast-valve https://www.bunkerbuilders.com/product/bvno-3300-overpressure-blast-valve/#respond Fri, 12 Dec 2025 12:25:52 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=817 BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

The post BVNO 3300 – Overpressure Blast Valve appeared first on Bunker Builders.

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BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

  • BVNC overpressure valves were developed for use in civil defense shelters, bunkers, safe rooms and other protected spaces.​

  • BVNC line of valves includes a wide range of valves for different airflows.

  • BVNC are automatic action valves designed to protect from external blast wave pressure.

  • BVNC designed for controlled release of air from the shelter when positive pressure (overpressure) rises to required level.

  • The valves are extremely durable and can operate in a wide range of temperatures and resistant to corrosion.

  • The valves are designed for installation on ventilation openings or as part of the duct.

BVNO 3300 – Overpressure Blast Valve

  • Reflected blast pressure durability (operational): >900 kPa

  • Nominal airflow: 3300 m3/h

  • Pressure drop @ nominal: 200 Pa

  • Mechanical shock resistance: >12 g

  • Standard flange: 14 Inch

Download Brochure >

The post BVNO 3300 – Overpressure Blast Valve appeared first on Bunker Builders.

]]> https://www.bunkerbuilders.com/product/bvno-3300-overpressure-blast-valve/feed/ 0 817 BVNO 2100 – Overpressure Blast Valve https://www.bunkerbuilders.com/product/bvno-2100-overpressure-blast-valve/?utm_source=rss&utm_medium=rss&utm_campaign=bvno-2100-overpressure-blast-valve https://www.bunkerbuilders.com/product/bvno-2100-overpressure-blast-valve/#respond Fri, 12 Dec 2025 12:24:00 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=814 BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

The post BVNO 2100 – Overpressure Blast Valve appeared first on Bunker Builders.

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BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

  • BVNC overpressure valves were developed for use in civil defense shelters, bunkers, safe rooms and other protected spaces.​

  • BVNC line of valves includes a wide range of valves for different airflows.

  • BVNC are automatic action valves designed to protect from external blast wave pressure.

  • BVNC designed for controlled release of air from the shelter when positive pressure (overpressure) rises to required level.

  • The valves are extremely durable and can operate in a wide range of temperatures and resistant to corrosion.

  • The valves are designed for installation on ventilation openings or as part of the duct.

BVNO 2100 – Overpressure Blast Valve

  • Reflected blast pressure durability (operational): >900 kPa

  • Nominal airflow: 2100 m3/h

  • Pressure drop @ nominal: 200 Pa

  • Mechanical shock resistance: >12 g

  • Standard flange: 14 Inch

Download Brochure >

The post BVNO 2100 – Overpressure Blast Valve appeared first on Bunker Builders.

]]> https://www.bunkerbuilders.com/product/bvno-2100-overpressure-blast-valve/feed/ 0 814 BVNO 1500 – Overpressure Blast Valve https://www.bunkerbuilders.com/product/bvno-1500-overpressure-blast-valve/?utm_source=rss&utm_medium=rss&utm_campaign=bvno-1500-overpressure-blast-valve https://www.bunkerbuilders.com/product/bvno-1500-overpressure-blast-valve/#respond Fri, 12 Dec 2025 12:21:29 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=811 BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

The post BVNO 1500 – Overpressure Blast Valve appeared first on Bunker Builders.

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BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

  • BVNC overpressure valves were developed for use in civil defense shelters, bunkers, safe rooms and other protected spaces.​

  • BVNC line of valves includes a wide range of valves for different airflows.

  • BVNC are automatic action valves designed to protect from external blast wave pressure.

  • BVNC designed for controlled release of air from the shelter when positive pressure (overpressure) rises to required level.

  • The valves are extremely durable and can operate in a wide range of temperatures and resistant to corrosion.

  • The valves are designed for installation on ventilation openings or as part of the duct.

BVNO 1500 – Overpressure Blast Valve

  • Reflected blast pressure durability (operational): >900 kPa

  • Nominal airflow: 1500 m3/h

  • Pressure drop @ nominal: 200 Pa

  • Mechanical shock resistance: >12 g

  • Standard flange: 8 Inch

Download Brochure >

The post BVNO 1500 – Overpressure Blast Valve appeared first on Bunker Builders.

]]> https://www.bunkerbuilders.com/product/bvno-1500-overpressure-blast-valve/feed/ 0 811 BVNO 600 – Overpressure Blast Valve https://www.bunkerbuilders.com/product/bvno-600-overpressure-blast-valve/?utm_source=rss&utm_medium=rss&utm_campaign=bvno-600-overpressure-blast-valve https://www.bunkerbuilders.com/product/bvno-600-overpressure-blast-valve/#respond Fri, 12 Dec 2025 12:13:53 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=808 BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

The post BVNO 600 – Overpressure Blast Valve appeared first on Bunker Builders.

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BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

  • BVNC overpressure valves were developed for use in civil defense shelters, bunkers, safe rooms and other protected spaces.​

  • BVNC line of valves includes a wide range of valves for different airflows.

  • BVNC are automatic action valves designed to protect from external blast wave pressure.

  • BVNC designed for controlled release of air from the shelter when positive pressure (overpressure) rises to required level.

  • The valves are extremely durable and can operate in a wide range of temperatures and resistant to corrosion.

  • The valves are designed for installation on ventilation openings or as part of the duct.

BVNO 600 – Overpressure Blast Valve

  • Reflected blast pressure durability (operational): >900 kPa

  • Nominal airflow: 600 m3/h

  • Pressure drop @ nominal: 200 Pa

  • Mechanical shock resistance: >12 g

  • Standard flange: 8 Inch

Download Brochure >

The post BVNO 600 – Overpressure Blast Valve appeared first on Bunker Builders.

]]> https://www.bunkerbuilders.com/product/bvno-600-overpressure-blast-valve/feed/ 0 808 BVNC 300 – Overpressure Blast Valve https://www.bunkerbuilders.com/product/bvnc-300-overpressure-blast-valve/?utm_source=rss&utm_medium=rss&utm_campaign=bvnc-300-overpressure-blast-valve https://www.bunkerbuilders.com/product/bvnc-300-overpressure-blast-valve/#respond Fri, 12 Dec 2025 12:10:26 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=805 BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

The post BVNC 300 – Overpressure Blast Valve appeared first on Bunker Builders.

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BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

  • BVNC overpressure valves were developed for use in civil defense shelters, bunkers, safe rooms and other protected spaces.​

  • BVNC line of valves includes a wide range of valves for different airflows.

  • BVNC are automatic action valves designed to protect from external blast wave pressure.

  • BVNC designed for controlled release of air from the shelter when positive pressure (overpressure) rises to required level.

  • The valves are extremely durable and can operate in a wide range of temperatures and resistant to corrosion.

  • The valves are designed for installation on ventilation openings or as part of the duct.

BVNC 300 – Overpressure Blast Valve

  • Reflected blast pressure durability (operational): >900 kPa

  • Nominal airflow: 300 m3/h

  • Pressure drop @ nominal: 200 Pa

  • Mechanical shock resistance: >12 g

  • Standard flange: 8 Inch

Download Brochure >

The post BVNC 300 – Overpressure Blast Valve appeared first on Bunker Builders.

]]> https://www.bunkerbuilders.com/product/bvnc-300-overpressure-blast-valve/feed/ 0 805 BVNC 40 – Overpressure Blast Valve https://www.bunkerbuilders.com/product/bvnc-40-overpressure-blast-valve/?utm_source=rss&utm_medium=rss&utm_campaign=bvnc-40-overpressure-blast-valve https://www.bunkerbuilders.com/product/bvnc-40-overpressure-blast-valve/#respond Fri, 12 Dec 2025 12:10:06 +0000 https://ffb.ios.mybluehost.me/website_81fe6ff5/?post_type=product&p=802 BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure. BVNC overpressure valves were developed for use in civil defence shelters, bunkers, safe rooms and other protected spaces.​ BVNC line […]

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BVNC overpressure valves – normally closed valves designed to maintain or control the differential pressure level in the shelter by releasing the air from the gastight shelter while offering providing protection from external blast wave pressure.

  • BVNC overpressure valves were developed for use in civil defence shelters, bunkers, safe rooms and other protected spaces.​

  • BVNC line of valves includes a wide range of valves for different airflows.

  • BVNC are automatic action valves designed to protect from external blast wave pressure.

  • BVNC designed for controlled release of air from the shelter when positive pressure (overpressure) rises to required level.

  • The valves are extremely durable and can operate in a wide range of temperatures and resistant to corrosion.

  • The valves are designed for installation on ventilation openings or as part of the duct.

BVNC 40 – Overpressure Blast Valve

  • Reflected blast pressure durability (operational): >900 kPa

  • Nominal airflow: 40 m3/h

  • Pressure drop @ nominal: 200 Pa

  • Mechanical shock resistance: >12 g

  • Standard flange: 4 Inch

Download Brochure >

The post BVNC 40 – Overpressure Blast Valve appeared first on Bunker Builders.

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