Products

Butterfly Valve

612X / 615X

Butterfly Valve

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Butterfly Valve

A butterfly valve that is good at customization to fit the installation location.

Operating Manual

Rubber Seat Butterfly Valves Handling Manual

Features

“Soft Touch Seat” for enhanced durability and reliability

OKM’s “Soft Touch Seat” provides crimping at a gentle angle when the valve is closed and the disc comes into contact with the seat surface. This enables zero leaks while minimizing seat wear, thus prolonging the service life and further improving reliability.

Reduced torque for a lightweight, compact actuator

OKM has developed a proprietary seat construction that provides a unique seal structure. Combining this construction with a reduced torque allows for a more lightweight and compact actuator.

Piping connection method

Standard specifications are C-type for 612X (40 A to 300 A) models and A-type for 615X (350 A to 1,200 A) models.
Contact OKM for any other type requests.

A-type (Tap holes)
40A～300 A (Semi-standard specification)
350A～1,200 A (Standard specification)
* 615X models with sizes of 650 A or more are made-to-order.

B-type (Drill holes)
40A～300 A　(Semi-standard specification)

C-type (Piping guide rib)
40A～300 A (Standard specification)

E-type (Lug-type tap holes)
40A～600 A (Made-to-order)
* 615X models are available in sizes up to 600 A.

Product name

Product name	Applications	Actuators	Max. service pressure	Production size	Max. temperature ~ Min. temperature	Main valve material	Seat material	Standard / Certification	Notes
612XC-L(Type C)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Lever operated	1Mpa	40mm～150mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-L(Type C)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Lever operated	0.5Mpa	200mm～200mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-G(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Gear operated	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-G(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Gear operated	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-G(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Gear operated	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-GⅡ(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Center handle operated	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-GⅡ(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Center handle operated	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-GⅡ(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Center handle operated	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-GⅡ(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Center handle operated	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-C(Type C/Doubie acting)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Pneumatic actuator	1Mpa	40mm～150mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-C(Type C/Doubie acting)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Pneumatic actuator	1Mpa	125mm～125mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-C(Type C/Doubie acting)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Pneumatic actuator	1Mpa	200mm～200mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-C(Type C/Doubie acting)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Pneumatic actuator	1Mpa	250mm～250mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-C(Type C/Doubie acting)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Pneumatic actuator	1Mpa	40mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-C(Type C/Doubie acting)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Pneumatic actuator	1Mpa	250mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-M(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Electric operated	1Mpa	40mm～65mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-M(Type C)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals	Electric operated	1Mpa	80mm～150mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-M(Type C)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Electric operated	1Mpa	200mm～200mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XC-M(Type C)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Firefighting equipment Powders Ore slurry	Electric operated	1Mpa	250mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)	HQS
612XA-L(Type A/Marine)	General industries Marine	Lever operated	1Mpa	40mm～65mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-L(Type A/Marine)	General industries Marine	Lever operated	1Mpa	80mm～150mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-G(Type A/Marine)	General industries Marine	Gear operated	1Mpa	40mm～65mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-G(Type A/Marine)	General industries Marine	Gear operated	1Mpa	250mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-GⅡ(Type A/Marine)	General industries Marine	Center handle operated	1Mpa	40mm～65mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-GⅡ(Type A/Marine)	General industries Marine	Center handle operated	1Mpa	80mm～150mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-GⅡ(Type A/Marine)	General industries Marine	Center handle operated	1Mpa	200mm～200mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-GⅡ(Type A/Marine)	General industries Marine	Center handle operated	1Mpa	250mm～300mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-L(Type A/Marine)	General industries Marine	Lever operated	1Mpa	80mm～80mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-G(Type A/Marine)	General industries Marine	Gear operated	1Mpa	80mm～80mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-G(Type A/Marine)	General industries Marine	Gear operated	1Mpa	80mm～200mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
612XA-GⅡ(Type A/Marine)	General industries Marine	Center handle operated	1Mpa	80mm～80mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
615XA-G(Type A)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals Marine	Gear operated	1Mpa	350mm～350mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
615XA-G(Type A)	Paper/pulp Powders General industries Sewage treatment Building equipment Ore slurry Firefighting equipment Water treatment Petrochemicals Marine	Gear operated	1Mpa	400mm～600mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
615XA-G(Marine)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Marine Firefighting equipment Powders Ore slurry	Gear operated	1Mpa	350mm～350mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
615XA-G(Marine)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Marine Firefighting equipment Powders Ore slurry	Gear operated	1Mpa	400mm～600mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
615XA-GⅡ(Marine)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Marine Firefighting equipment Powders Ore slurry	Center handle operated	1Mpa	350mm～350mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)
615XA-GⅡ(Marine)	General industries Building equipment Petrochemicals Paper/pulp Sewage treatment Water treatment Marine Firefighting equipment Powders Ore slurry	Center handle operated	1Mpa	400mm～600mm	-20℃〜120℃	FCD cast iron	Rubber	Nippon Kaiji Kyokai certified products Lloyd’s Register Det Norske Veritas (DNV GL)