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PK Valve & Engineering
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PK Valve & Engineering
About Inc
Let me introduce you
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PK Valve & Engineering
About Inc
Let me introduce you
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PK Valve & Engineering
About Inc
Let me introduce you
PRODUCTS
Asia, the Middle East, Europe, North and South America,
in the field of industrial valves such as Africa
It's a global company that leads the global market
Product Description
Triple offset metal seat butterfly valve provide a bi-directional and bubble-tight shutoff which is attributed to the geometry of triple offset seat.
The valve stem is offset by seat (1st offset) and the valve seat surface center line is offset against the center line of pipe (2nd offset) and the conical axis is offset by valve center line (3rd offset: inclined cone).
The 3rd offset completely eliminates rubbing.
The seat surfaces of body and seal ring in triple offset valve contact with the inclined “cone-in-cone” and this design requires excellent sealing and seat part durability by slight wedging effect.
In addition, the angle of contact between body and seal ring has a good sealing performance by low torque because the angle travels the initial torque from actuator to seat parts without any loss by jamming.
This valve is characteristic of concentric, offset and double offset construction with remarkable sealing performance and seat part durability, and moreover it is hardly needed to repair.
Product Specifications
CHARACTERISTICS AND MERITS
• Excellent durability of seat part and low operating torque by non-rubbing characteristics with triple offset construction.
• Bi-directional zero leakage service by resilient metal sealing and torque seating.
• Unrestricted selection of face to face dimensions for API, ASME(ANSI), BS, ISO, etc. and perfect interchangeability of gate, ball, plug, high performance butterfly, and other VALVE.
• Low emission by quarter turn construction and good performance at automation by virtue of low operating torque and low cost.
DESIGN FEATURE
• Designed in accordance with ASME B 16.34 or other customer requirements.
• Fire safe design
BODY
• The valve body shall be one piece cast or fabrication.
• The body can be supplied with different types of materials in wafer, lug, or flanged and butt welding end connections to satisfy all installation requirements.
BODY SEAT
• The valve seat shall be integrated with the body.
• Stellite or stainless steel shall be applied on the seating surface of valve body.
• The valve seat is designed for inclined cone to ensure non-rubbing, non-jamming, bi-directional shutoff, and zero leakage.
DISC
• The valve disc shall be the same material as the valve body. It is supported by laminated seal ring, which is kept in place by seat retainer ring bolted to the disc and can be replaced easily.
• The spiral wound gasket shall be provided between laminated seal ring and disc.
SEAL RING (LAMINATED)
• The seal ring shall be resilient stainless steel lamella alternated by graphite, aramid fiber & cermic fiber layers.
• The surface contacting between seal ring and body seat is an inclined cone type and the inclined angle generates a slight wedging effect.
• With a seat retainer ring bolted to the disc, the seal ring is fixed to disc not too tightly to be replaced easily.
STEM
• The stem shall be stainless steel and one piece & two pieces construction.
• The stem shall be fixed to the disc by pin or in combination of pin and key. It can be protected by internal thrust bush and bush bearing.
• The thrust bush and bush bearing shall be provided to locate the valve disc in a proper position.
• The retainer ring shall be installed to avoid blowing out the stem.
PACKING
• The packing shall be consist of two braided rings in the top and bottom of valve and three die formed graphite rings in the middle.
• The lantern ring may be provided as required by customer.
ACTUATORS
• All valve shall be self-locking manual gear operation type which is served as standard.
• Electric, pneumatic or hydraulic actuator may be provided as required by customer.
Usage
PK Valve & Engineering Co., Ltd. (now referred to as the 'Company') values customers’ personal information and complies with the Act on the Promotion of Information and Communications Network Utilization and Information Protection. Through the privacy policy, the company informs you of the purpose and method of using the personal information you provide and what measures are being taken to protect your personal information. If the company revises the privacy policy, it will be notified through the website notice (or individual notice).
※This policy is effective October 1, 2022.
The company collects a minimum of personal information so users can conveniently use the service through membership registration.
If the users want to use the service, they must enter the necessary personal information, and the company allows users to access all services though they do not enter the optional items.
1) Service use: e-mail or mobile phone number
The company has prepared a procedure for users to click the 'I agree’ button for the contents of the privacy and youth protection policy or terms of use. When users click the "I agree" button, the company considers them to agree.
① The company uses users’ personal information within the range notified in 「Purpose of Collection and Use of Personal Information」 and does not use it beyond this range or provide it to others or other companies. In particular, the company will operate and provide personal information with care in the following cases.
② The notice and consent method are notified at least ten days in advance through the message on the initial screen of the online homepage and individually told at least once through e-mail, etc.
③ The following are exceptions.
Notification may not be unavoidable due to legal grounds. We will do our best not to provide information indiscriminately against the original purpose of collection and use.
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