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Yongjia NSV Valve Co., Ltd

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Metal Seated Floating Ball Valve
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Product: Views:501Metal Seated Floating Ball Valve 
Unit price: Negotiable
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2019-10-06 13:25

Product Details

NSV Floating metal seated ball valves are designed for wide range of applications in the mining, refining, petrochemical, pulp and paper industries. The designs incorporate many technically advanced features which ensure reliable and repeatable shut off performance while providing the highest level of safety as demanded by these industries.

Applicable Standard
Design Standard: API 6D, ASME B16.34, API 608, MSS SP-72, BS 5351
Face to Face: ASME B16.10, API 6D, EN 558
End Flange: ASME B16.5, DIN 2501
Butt welding Ends: ASME B16.25
Inspection and Test: API 598, API 6D

Products Range
Size: 1/2" ~8" (DN15 ~ DN200)
Rating: 150lb ~ 300LB

Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Stainless Steel
Ball&seat coating Material: Nitriding, TC, STL and Nickel Alloy
Operation : Lever, Gear, Electric, Pneumatic, Hydraulic

Design Features
Full port or reduced port
Floating ball
Metal to metal seated
Blowout-proof stem
Zero Leakage available upon request
Anti-static to BS 5351


1. Typical Of Coatings


Coal Chemical Indutry;

Coal Liquefaction.


Photovoltaic industry;Polysilicon.

Medium Indluding H2S.

Strong-acid medium;HNO3,H2SO4;


Air distribution industry.

Oxygen Service.

2. Fireproof Structure Design

In the metal to metal sealing structure for the valve, the gasket is the stainless steel + flexible graphite and the packing is the flexible graphite. Therefore, reliable sealing of the valve can be ensured even in case of fire.

3. Reliable Sealing Performance
The unique ball grinding technology is adopted. Through rotation of the ball and the grinder at different positions, the ball surface will achieve high roundness and fineness. The low pressure sealing of valve seat is realized by spring pre-tightening. In addition, the position effect of valve seat is designed reasonably, which realizes high pressure sealing by the pressure of the medium itself. The sealing level of the valve meets the requirement of level IV B16.104.



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.

2. Q:What's the packing for shipping?

A:Its carton for small valves(sample) and plywood case(don’t to fumigate).

3. Q:Is there have MOQ?

A:No.we can accept 1set,but there have additional cost $150.00(process of export) if the order value within $2000.00.