NPT Ball Valve

Original
price: Negotiable
minimum:
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Zhejiang
Validity to: Long-term effective
Last update: 2019-10-26 00:18
Browse the number: 98
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Product details

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

http://www.nsvvalves.com/

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