Keystone Model ParaSeal Butterfly Valve
ParaSeal Series uses proven valve plate, shaft, and seat arrangements for high pressure and high speed
Features
Available with clips, lugs and double flanges
Monolithic valve body design in accordance with ISO 5752 series 20 (DIN 3202 K1)
Suitable for extreme vacuum, up to 25 bar leak-free closing
Field replaceable valve seat completely isolates the valve body, valve stem and medium
Grooved seat structure is suitable for hermetically closed under full pressure, and can also be used to take the pipeline out of service
Suitable for Bördel and sliding sleeve flanges
Recessed seals on seat surfaces for flange sealing. No flange washers required
Lensed disc improves flow capacity
Spline, Fang Jian, and S-shaped disc / stem connections
Dry shaft design
PTFE bushed bearings minimize friction
The actuator flange complies with ISO 5211.
specification
Certification DVWG, PED
End connection flange type, ear type, wafer type
Applications Desalination, water supply, cooling units, power plant peripherals, water treatment
Body design short version
Material EPDM rubber, duplex stainless steel, ductile iron, cast iron, carbon steel, nitrile rubber, bronze, 316L stainless steel, 316 stainless steel, 304 stainless steel, aluminum bronze
Operating temperature below 200 C
Pressure rating ASME, PN
Process connection type 125FF, 150RF, PN16, PN25, 150FF
Seat / Seal Type Elastic
Shutdown level Zero leakage
Valve size NPS 6 / DN 150, NPS 4 / DN 100, NPS 3 / DN 80, NPS 24 / DN 600, NPS 2-1 / 2 / DN 65, NPS 20 / DN 500, NPS 2 / DN 50, NPS 18 / DN 450, NPS 16 / DN 400, NPS 14 / DN 350, NPS 12 / DN 300
Valve size standard NPS, DN
Valve type
Butterfly valve
Medium Air, air, inert gas, water
Stem O-ring
Professional manufacturing and professional services, KUNAG creates more value for you
Continuously improving the quality of services and keeping improving, "sincere service" is the eternal theme of KUNAG. Kunag strictly complies with the requirements of ISO9001-2000 quality system certification, strictly controls the quality and responsibilities to the people to ensure the healthy operation of production, sales and service. To strengthen communication with customers and to provide our customers with quality products and perfect service, we hereby make the following commitments:
Product Standards
Products are designed, manufactured, and inspected strictly in accordance with China\'s GB, HG standards, and US API standards. The hardness of the sealing surface meets the national requirements and the width exceeds the national standard.
pre-sale service
Product introduction, technical communication, non-standard product design, troubleshooting.
Sale service
Trustworthy contracts, guarantee timely delivery, and keep in touch with customers at any time.
For special or complex products, our factory arranges technicians to train and guide users on product use, troubleshooting, tuning and maintenance.
After sales service
The warranty period of Weitong products is 12 months from the factory, and the "three guarantees" service (return, replacement, repair) is implemented.
During the use of our products, our factory regularly organizes technical and inspection personnel to visit and solicit user feedback on product quality, use conditions, and improvement opinions in order to further improve product quality.
Quickly respond to customer complaints about product quality problems, and after-sales service personnel rushed to the scene within 24-36 hours (48 hours outside the province).
For after-sales service, users are required to fill in the quality feedback form after the service and make appraisal opinions, while improving Guardian\'s service quality.
Order process
Landline: 021-59718851 (AM-8: 30 to PM-17: 30)
Mobile phone: 18918462396 (WeChat same number 24-hour service)
QQ: 2030185432
Email: kunage@126.com
Receive customer purchase list, provide customers with valve model selection and quotation (price list).
Specific agreement: delivery time, special requirements, etc.
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Customers have special requirements for products, and must provide the following instructions in the order contract:
(1) Structure length;
(2) Connection form;
(3) Nominal diameter, full diameter, reduced diameter, pipe size;
(4) Operating medium, temperature and pressure range;
(5) Experiment, inspection standards and other requirements;
(6) Various driving devices can be configured in this field according to the special requirements of customers;
If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract under the conditions that the supply and demand sides understand and agree.