Heat Resistant Carbon Steel Inverted Pressure Balance Lubricated Plug Valve with Worm Gear/Hand Wheel

The Flexible Wedge Gate Valve, Cast Floating Ball Valve, Inconel 625 Gate Valve we manufacture is under the guidance of highly skilled, proven and experienced supervisors. We follow the concept of modern business management and continue to carry out technological innovation and new product development. Besides, we strive to expand the international market and some of our products have been sold overseas. Our goal is to delight you with our distinctive collection of mindful products while providing value and excellent service. Our company promises to provide customers with high-quality all-round services based on the principles of quality first, safety and reliability. In the future, we will open up larger domestic and overseas markets, expand the scale of partners and grow together with many partners.

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 strive to bring our Heat Resistant Carbon Steel Inverted Pressure Balance Lubricated Plug Valve with Worm Gear/Hand Wheel closer to international standards to provide our customers with stable performance and timely and convenient services. We hope to cooperate with suppliers who share similar values with us, and work together towards the same standards. We have notable technological innovation capabilities, forming a good basic platform for our enterprise development.