
Inverted Pressure Balance Lubricated Plug Valve
We always focus on the research and development of high-end 5A Gate Valve, Solid Wedge Gate Valve, API 6D Check Valve, and insist on the concept of letting science and technology burst into force since the establishment. Our company strives to be at the forefront of the market, only in the field we reach, can we live up to the trust and friendship of consumers. Our company relies on accurate market positioning and continuous innovation of marketing strategies, and the business covers many countries and regions around the world. As a pragmatic and innovative enterprise, we have humanized management and efficient production line, and we strive to introduce high-quality products for customers from all over the world. We will improve the quality management system and pre-sale, in-sale and after-sales service systems.
Product details
NSV Lubricated Plug valves Designed for Crude oil, Oil, Natural gas handling and transmission lines. Line sealing is achieved basically by metal to metal contact between body and plug with assistance of sealant injected in between body and plug, which serves both sealing and lubricating during operation.
Considered a high maintenance plug valve, they are often used in applications that have infrequent operations. Lubricated plug valves perform well in processes that utilize fluids which carry mildly abrasive particles such as dirty upstream applications, gas pipeline systems that need bypass valves, and as blow-down valves on valve stations and kicker valves.
Applicable Standard
Design Standard: API 599,6D, ASME B16.34
Face to Face: ASME B16.10
End Flange: ASME B16.5
Butt welding Ends: ASME B16.25
Inspection and Test: API 598, API 6D
Products Range
Size: 1/2" ~4" (DN15 ~ DN100)
Rating: 150lb ~ 600LB
Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel
Plug Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel
Seat Material: Metal
Operation : Lever, Gear, Electric, Pneumatic, Hydraulic
Design Features
Reduced port or Full port
Large port opening
Pressure Balance Lubricates

STRUCTURAL FEATURES
1.Construction of Lubricated Plug Valves
As the name suggests, a lubricated valve uses a lubricant usually made up of a base oil and viscosity improver (like amorphous or fumed silica) that is injected under pressure between the plug face and body seat to reduce friction and seal ports.

2. Hard Surfaced Plug Valves
High Temperature and Abrasive services: For high temperature and abrasive services, NSV plug valve can be supplied with plug taper and body seat hard surfaced with nickel or cobalt base alloys. These materials provides a coating at elevated temperatures. With additional hard surfacing in high erosion areas, hard surfaced valve provides excellent resistance to abrasion in coal, limestone, iron core, copper ore and other water carried slurries. For severe services, hard surfacing extends valve life and improves valve performance significantly.

FAQ
1. Q:How can I get your company catalog?
A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.
2. Q:Does your company have any agent/distributor with the exception of China?
A: At present,we have agent in Indonesia,Singapore,Canada,Mexico,Iraq,and welcome contact us if you would like to join us.
3. Q:Does “NSV” valves have supply to any value end user?
A:Yes,it just like PETROKIMIA GRESIK in Indonesia, BP Iraq,ESFAHAN MOBARAKEH STEEL In Iran etc.
4. Q: I want to be registered as your agency.?
A: Defined inspection and manager’s approval shall be required for being registered as the company’s agency. For specific application method, please consult with sales team. If you are registered as the company’s agency, “Agency Certificate” will be issued.
5. Q:Are you manufacturer or trading company?
A: We’re manufacturer,but our factory name is not named NSV due to we’re professional in promotion NSV brand with best service,and also have sold to many end user success.
Our company has always maintained a leading position in the industry for Inverted Pressure Balance Lubricated Plug Valve. We firmly believe that 'continuous customer satisfaction' is the key to enterprise development, so we take the lead in using advanced customer service solutions and establishing industry-leading quality service standards to achieve customer satisfaction and reputation. We actively cooperate and communicate with the industry in the hope that we can complement each others advantages, share resources, and commit to common development.
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