High Quality Cast Steel Soft Seat PTFE Lined Plug Valve with Worm Gear

Since our establishment, we have adhered to the road of technological innovation, continuously committed to the research and development of Titanium C2 Knife Gate Valve, BB Forged Gate Valve, Forged Lift Check Valve, and invested a lot of money in technology, equipment and modern management. We pay more attention to internal quality, and design for customers according to their different needs to meet the needs of customers. We are willing to cooperate with you hand in hand to create brilliant future! We take the core of our culture as the core of our core culture, innovative value, sunshine system, and benevolent family, and contribute to the better life of mankind.

Product details

NSV Jacketed plug valve are designed to control special chemical service where media has to be required within a specified temperature range. The steam jacketed design prevents the media in the body from cooling down. If cool media become solid, the trim parts, plug and stem will be very hard to operate. The steam jacket keep maintaining required temperature of the valve.

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" ~14" (DN15 ~ DN350)
Rating: 150lb ~300LB

Body Material: Carbon Steel
Plug Material: Carbon Steel
Sleeve Material: PTFE
Operation : Lever, Gear, Electric, Pneumatic, Hydraulic

Design Features
Reduced port or Full port
Rugged,Heavy-Duty Body
Large port opening

Non-Lubricated

STRUCTURAL FEATURES

1.Construction of Jacketed Sleeve Plug Valves

Basic structure is plug, sleeve,body. Sleeve is inserted and encaged inside the body. Tapered plug is inserted onto the sleeve.The sleeve is acting as a soft seat.And completely surrounds plug creating areal sealing surfaces.Also not permitting any dead space in the flow path. Plug is rotating 90 degree. When it is aligned with the body port, flow is open. When the plug is rotated so that plug port is perpendicular to the body port the flow is blocked.The media kept in the plug while at closed position, will be contained in the plug port only,and when the valve is open again,the flow will flush the out. And no remains.

PTFE is an plastic material, even though they are high grade engineering material. All plastics are subject to cold flow.; at higher temperature volume increase,escape to the low pressure area and don’t get back to its original position even after removal of temperature, pressure. But, if they get confined , they would not cold flow. Upper boundary and lower boundary, and 360 port lips.Recessed wall is acting as absorption of inflated volume of PTFE when volume is increased due to temperature.

2.Zero Leakage

The zero leakage stem sealing is achieved by the Threefold Stem Sealing System.
The primary seal is provided by the sleeve. The sealing is so tight that no leakage can be observed even without a valve cover. The secondary and the tertiary seal (top seal package) are provided by a delta ring and a diaphragm made of RTFE ( Rein forced Teflon). The sealing is also so tight that no leakage can be observed even with out a sleeve.

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.

We will continue to serve users wholeheartedly, and strive to make users feel at ease and satisfied with the use of High Quality Cast Steel Soft Seat PTFE Lined Plug Valve with Worm Gear. We actively seize the opportunity of industrial layout adjustment and we always are market-oriented. Service, quality and price are the beginning of cooperation between our company and our customers.