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KITO Combination Pressure/Vacuum Relief Valves with Flame Arrestor Elements
CMC offers a comprehensive selection of valves for combining safe pressure relief and vacuum relief in an ever increasing range of critical applications.
Deflagration and endurance burning proof pressure and vacuum relief valves
KITO® VD/KS-IIA-…-A, K
- Certified for explosion group IIA substances with a maximum experimental safe gap (MESG) > 0.9 mm
- Primarily deployed on fixed roof tanks to facilitate venting and inbreathing operations.
- Aims to prevent excessive pressure or vacuum along with minimizing vapor loss and emissions.
- Mounted atop storage containers for optimal functionality.
- Offers an optional explosion- and endurance burning-proof condensate drain device.
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KITO® VD/KS-1-IIA-…-A, K
- Suitable for substances in explosion group IIA with a maximum experimental safe gap (MESG) > 0.9 mm
- Designed for use with fixed roof tanks to enable both venting and inbreathing.
- Helps in averting unnecessary pressure or vacuum situations.
- Aids in reducing unwanted vaporization losses and emissions.
- To be installed at the pinnacle of storage vessels for efficacy.
- Option for an accompanying explosion-proof and endurance-tested condensate drain device.
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KITO® VD/KL-IIA-…-A, K
- End-of-line armature designed for tank venting, featuring explosion-proof and endurance-burning proof specifications.
- Ideal for managing volatile liquids, serving as both a venting and breather mechanism for fixed roof tanks.
- Aims to prevent unacceptable levels of pressure and vacuum, reducing unwanted gas loss and emissions.
- Compliant with materials classified under explosion group IIAwith a maximum experimental safe gap (MESG) > 0.9.
- Valve housing is installed vertically atop the tank roof for effective operation.
- Can be fitted with an explosion-proof condensate drain device upon customer request.
- Includes an optional lifting lever for the lower valve disk to facilitate functional testing.
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KITO® VD/KL-1-IIA-…-A, K
- Functions as an end-of-line valve for venting openings on tank systems, offering explosion and endurance burning protection for specific flammable liquids.
- Primarily operates as a venting and breather apparatus for fixed roof tanks, aimed at averting unacceptable pressure or vacuum scenarios, thus reducing unwanted gas losses and prohibited emissions.
- Certified for usage with substances in the explosion group IIA with a maximum experimental safe gap (MESG) > 0.9.
- Engineered with a housing that installs vertically on the roof of a tank for optimal efficiency.
- Optional enhancements include an explosion-proof condensate drain device and a functional testing mechanism, featuring a lifting lever for the lower valve disk, available upon customer request.
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KITO® VD/MB-IIA-…-A, K
- Designed as an end-of-line valve for tank venting openings, specifically geared towards handling flammable liquids within explosion group IIA.
- Features explosion-proof and endurance-burning credentials for substances requiring a maximum experimental safe gap (MESG) > 0.9.
- Functions as a venting and breather mechanism for fixed roof tanks to curb unacceptable pressure build-ups, vacuum formation, and to reduce undesired gas losses.
- Allows for variable pressure settings to manage and minimize gas emissions effectively.
- Offers the option of an explosion-proof condensate drain device, available upon customer request.
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KITO® VD/MB-IIB1-…
- Designed as an end-of-line flame arrester, providing protection against explosions and sustained burning conditions.
- Applicable for all flammable liquids and vapors within explosion group IIB1, including alcohols, requiring a maximum experimental safe gap (MESG) ≥ 0.85 mm.
- Not suitable for installation within enclosed spaces to ensure safety and compliance.
- Primarily installed atop storage tanks, on tank access covers, or attached to breather pipes for maximum efficacy.
- Functions as a vent and breather mechanism for fixed roof tanks, aiding in the prevention of unacceptable pressure levels, vacuum creation, and facilitates in gas loss reduction through adjustable pressure settings.
- Offers the option of adding an explosion-proof condensate drain to the setup, available for an additional charge.
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KITO® VD/MC-IIA-…-A, K
- Designed for flammable liquids within explosion group IIA, requiring a maximum experimental safe gap (MESG) > 0.9
- Features explosion-proof and endurance burning proof capabilities for enhanced safety.
- Acts as a venting and breather solution for fixed roof tanks, ensuring pressure and vacuum levels remain within safe margins.
- Employs variable pressure settings through weight-loaded and/or spring-loaded valve mechanisms to mitigate gas losses effectively.
- Offers the option to incorporate an explosion-proof condensate drain device for additional functionality.
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KITO® VD/MC-IIB1-…
- Designed as an end-of-line flame arrester for storage tank vent openings.
- Suitable for all flammable liquids and vapors in explosion group IIB1, including alcohols, requiring a MESG of ≥ 0.85 mm.
- Not approved for installation within enclosed spaces to ensure safety compliance.
- Typically mounted atop storage tanks, on access covers, or along breather pipes for optimal effectiveness.
- Functions as a venting and breathing mechanism for fixed roof tanks, aiding in the management of pressure levels, preventing vacuum conditions, and reducing gas losses.
- Utilises variable pressure settings via weight-loaded valve devices to adapt to different operational needs.
- Offers the option to integrate an explosion-proof condensate drain device for an additional cost, enhancing functionality.
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Pressure and vacuum relief valves
KITO® VD/o
- Functions as an end-of-line fitting, serving as both a breather and venting device, specifically tailored for tanks containing flammable liquids.
- Aims to avert unacceptable levels of pressure or vacuum within the tanks, thereby preventing potential hazards.
- Additionally designed to minimize undesired gas losses and prevent emissions that exceed regulatory thresholds.
- The valve does not carry explosion-proof or endurance-burning proof certifications, indicating specific usage limitations.
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KITO® VD/o-1
- Designed as an end-of-line armature, serving as a breather and venting mechanism, ideal for storage tanks holding flammable liquids.
- Plays a pivotal role in mitigating unacceptable pressure levels or vacuum conditions within these storage units.
- Efficiently reduces gas losses and curtails emissions that exceed prescribed safety standards.
- The valve lacks features for explosion-proofing and endurance-burning proofing, marking its usage constraints.
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KITO® VD/o DN 25
- Serves as an end-of-line armature, functioning as a venting and breather device, specifically for tanks containing incombustible liquids.
- The valve’s primary role is to thwart unacceptable pressure or vacuum conditions, efficiently managing gas losses and limiting emissions.
- It is important to note that the valve does not possess explosion-proof or endurance-burning proof capabilities.
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KITO® VD/oP
- Functions as an end-of-line fitting for storage tanks and silos containing powdered products and granulates.
- Operates as both a venting and breathing mechanism to halt unpermitted pressure or vacuum formation.
- Engineered with all moving components located externally to the main storage area for enhanced safety and durability.
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KITO® VD/oL
- Designed as an end-of-line fixture for venting openings in tank setups.
- Primarily functions as a venting and breathing apparatus for fixed roof tanks.
- Aims to avert unacceptable pressure levels or vacuum conditions within tanks.
- Additionally, it helps in reducing undesired gas losses and preventing impermissible emissions.
- Features a housing that is installed vertically atop the tank roof for optimal performance.
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KITO® VD/oL-1
- Serves as an end-of-line component designed for venting ports on tank systems.
- Functions primarily as a venting and breathing mechanism specifically for tanks with fixed roofs.
- Prevents the development of unacceptable pressure or vacuum conditions inside tanks.
- Aids in curbing unwanted gas losses and controlling unauthorized emissions.
- The unit’s housing is strategically positioned vertically on the top of the tank roof for effective operation.
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KITO® VD/o2
- Designed as an end-of-line fitting, ideal for tanks storing flammable liquids under inert gas.
- Facilitates venting and breathing in both fixed roof and above-ground tanks.
- Features a side connection point specifically for an inert gas conduit, enhancing safety and functionality.
- Incorporates an upper valve arrangement including a pressure valve to block excessive pressure build-up.
- The lower valve is tasked with automatically regulating the inflow of inert gas (such as nitrogen), maintaining optimal inert gas pressure within the tank.
- Optimal inert gas pressure settings are outlined under setting II, offering clear guidelines for max admission pressure.
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KITO® VD/oG
- Serves as an end-of-line component specifically for venting ports on tank systems.
- Primarily operates as a venting and breathing mechanism for tanks equipped with fixed roofs.
- Aims to halt the formation of unacceptable pressure levels or vacuum situations within tanks.
- Additionally, works to reduce undesirable gas losses and curb unauthorized emissions.
- Features a design where the housing is vertically installed on the tank’s roof for optimal functionality.
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Deflagration proof pressure and vacuum relief valve
KITO® VD/AE-…-IIB3
- Designed as an end-of-line fitting for tank venting and breathing.
- Certified for atmospheric deflagrations within explosion group IIB3.
- Requires materials to have a maximum experimental safe gap (MESG) of ≥ 0.65 mm.
- Offers vertical mounting suitable for tank roofs.
- Includes the option for an integrated elbow to facilitate installation.
