NPT Ball Valve
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NPT Ball Valve

NSV this series of floating ball valves are applicable for opening/closing pipelines of water,petroleum products and steam. It opens and closes quickly and it has long life span,it is safe and reliable with low flow resistance.

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Product Introduction

NSV Valve Corporation is one of the most reliable manufacturers and suppliers of npt ball valve in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy advanced npt ball valve made in China here from our factory.

Product Details

NSV this series of floating ball valves are applicable for opening/closing pipelines of water,petroleum products and steam. It opens and closes quickly and it has long life span,it is safe and reliable with low flow resistance.
The main scope of application is petrochemical industry, petroleum, metallurgy,paper making and pharmaceutical etc.

Applicable Standards:
Ball Valve design according to BS5351,MS SP-118
Face to face MFG STD
End NPT/SW/BW ANSI B1.12.1/ANSI B16.11/ANSI B16.25
Inspection and test API 598

Material: A105,F304,F316,ETC.
Size Range: 1/2"~3"
Pressure Rating: ASME CL, 150~2500

Design Description:
- Two Pieces or Three Pieces Body
- Metal or Soft Seated
- Full or Reduced Bore
- NPT,SW,BW,NIPPLE(100mm pipe) Ends
- Locking device
- ISO Mounting Pads (Optional)

TROUBLE SHOOTING

MULFUNCTION	POSSIBLE CAUSE	REMEDIAL ACTION
Valve does not rotate or operate	1. Packing is dropped too tightly. 2. The stem is torn or there is dirt 3. The times of on-off operation are too many or there exists dirt on the surface of the ball	1. Loose nuts and adjust again 2. Take apart the valve and clean the dirt
Ball/Seat Leaking	1. Valve not fully closed 2. Seat or ball damaged 3. Dirt trapped in valve	1. Close the valve tightly 2. Replace seat or ball 3. Clean the dirt
Stem Packing Leaking	1. Gland bolts loose 2. Packing damaged or missing 3. Seal misaligned	1. Tighten gland bolts 2. Replace packing (shut down first) 3. Replace and aligned it correctly
Body Gasket Leaking	1. Body bolts loose 2. Body gasket damaged	1. Tighten body bolts 2. Replace the gasket

FAQ
1. Q:Do you have any valve in stock?
A:There have a lot of GGC valves(2”&within) in stock,and that can delivery within one week.

2. 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.

3. Q: What's the valves warranty?
A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first

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