High performance butterfly valves that help chemical producers achieve their productivity, safety and sustainability goals.
As a chemical producer, you rely on your valves to ensure a safe work environment for your personnel, reduce fugitive emissions and maximize plant productivity. Installing valves designed to the latest NAMUR Recommendation NE 167 can move your facility to higher levels of performance. And yet, not all high performance butterfly valves can deliver.
An ineffective seal at valve closure, particularly in dead-end service can put your personnel at risk, result in valuable product loss and cause unplanned downtime. The risk is heightened in chemical processes where media escapes can cause serious safety concerns.
Valves that don’t comply to the latest standards create inefficiencies in your plant. They require design compromises, custom maintenance & operator training, and additional costly spares inventory.
Valves are responsible for up to 60% of fugitive emissions in a typical process plant, primarily through stem and joint leaks. Without the latest technology that meets the most stringent regulation, facilities can risk non-compliance and heavy financial penalties.
The majority of injuries sustained by personnel in process plants occur during corrective maintenance activities. Inferior valve technology that fails to seal or needs regular packing adjustment to remain in compliance, puts personnel at risk.
Specify these features when designing & upgrading your chemical processes.
An integrally cast mounting pad to ISO 5211 enables direct mounting of actuators, eliminating the need for costly brackets.
Stub shaft designs allow for higher flow coefficients (Kv) and a greater range of control.
Lug body must provide full rated bidirectional dead-end service.
Lug body must provide full rated bidirectional dead-end service.
Comply to the latest valve design specifications and certifications including NAMUR NE 167, ISO, EN, PED and CE as standard.
Proven performance to the most stringent testing criteria, ISO 15848-1 BH C03.
A true interference fit design does not rely on line pressure to assist the sealing.
A double offset design minimises wear while precise disc alignment ensures long life, tight sealing performance.
Deploy the proven K-LOK seat design that delivers zero leakage shut-off to EN 12266, independent of line pressure. The design eliminates almost all voids and with it, the possibility for media to accumulate. This allows the valve to deliver the same, superior sealing performance at very low pressure, and in challenging services that contain particulate.
Simplify your valve assets with a solution designed to suit your chemical facility. The lug style valve provides full rated, bidirectional dead-end service with an uninterrupted flange sealing surface in compliance with EN 12569. The valve is designed to NAMUR NE 167, ISO and EN specifications with PED and CE certifications as standard.
Stay ahead of fugitive emissions compliance with this modern valve design complete with features engineered to meet the most stringent regulation. All possible leak paths have been addressed, most notably the stem seal system which comes standard with live-loaded PTFE packing. This valve is certified to ISO 15848-1 BH C03.
Achieve a lower total cost of ownership with a valve designed to achieve minimal wear over a high cycle life, no routine packing maintenance, lower actuation torque, and simple seat replacement without removing the disc or shaft. All this means lower maintenance spend, reduced actuation costs and minimal downtime over an extended service life.
Please enter your details in the form and a butterfly valve expert will be in touch to answer any questions you might have about the new Keystone K-LOK Series 38 High Performance Butterfly Valve. Learn how deploying this technology can help you achieve higher safety and sustainability standards in your chemical facility.
Frequently Asked Questions
Butterfly valves engineered specifically for the chemical and petrochemical industry meet the unique design standards required by producers to safeguard personnel safety, protect the environment from harmful emissions and to ensure the efficient operation of chemical processes.
NAMUR Recommendation NE 167 was released in April 2021 and describes the common technical specifications to be observed for industrial valves and other devices in the chemical and petrochemical industry. This recommendation contains new technical requirements and is adapted to the technical state of the art for the design and function of valves.
A dead end service valve can be installed at the end of a pipeline or at a point where downstream piping may need to be removed for maintenance or realignment. Valves designed for dead end service are capable of sealing against the valve’s maximum design pressure, eliminating the need for blank flanges which can simplify and shorten maintenance events. Typically, these valves are butterfly valves with a lugged body design.
An uninterrupted flange sealing surface on a valve eliminates any extrusions (usually retaining screws) that would compromise the sealing integrity against the adjoining pipe flange. Ensuring an uninterrupted connection between valve and pipe minimises the possibility of process media escaping the system in the form of potentially harmful fugitive emissions.
