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API Drill Pipe Safety Valve OD146mm L500mm NC38 Kelly Valves For Oil Well

China API Drill Pipe Safety Valve OD146mm L500mm NC38 Kelly Valves For Oil Well

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API Drill Pipe Safety Valve OD146mm L500mm NC38 Kelly Valves For Oil Well

MOQ： 1 Pieces
Price： 1000
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Payment Terms	L/C, T/T, Western Union
Supply Ability	10000 units per months
Delivery Time	10-20 days
Packaging Details	Carton Box or Wooden Box
Diameter	111/121/146/165/184/197
Work pressure	5,000 / 10,000 / 15,000 PSI
Use	Oil Drilling
Thread	NC 38
Material	40CrMnMo
Brand Name	MIROC
Model Number	Upper / Lower kelly valves
Certification	API
Place of Origin	China

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Product Details
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Product Specification


Payment Terms	L/C, T/T, Western Union	Supply Ability	10000 units per months
Delivery Time	10-20 days	Packaging Details	Carton Box or Wooden Box
Diameter	111/121/146/165/184/197	Work pressure	5,000 / 10,000 / 15,000 PSI
Use	Oil Drilling	Thread	NC 38
Material	40CrMnMo	Brand Name	MIROC
Model Number	Upper / Lower kelly valves	Certification	API
Place of Origin	China
High Light	OD 146mm kelly valves drilling ，Upper kelly valves drilling ，Lower kelly valves drilling

NC38 Inside blowout control tools 3~3/8" Upper / Lower kelly valves

Product information
Kelly cock valve is a manual control valve in the drill string circulation system and is one of the effective tools to prevent blowout; it is upper Kelly valve and lower Kelly valve which is assembled the upper end and lower end of drill pipe.

The kelly valve can be opened on or closed off by the specoal operating spanner at 90 degrees according to the indicatong dorection.

Specifications -

Name	Model	O.D.	I.D.	Connection	WP
Name	Model	mm(inch)	mm(inch)	API	35MPa 70MPa 105MPa
Upper Kelly Valve	XS197	197(7-3/4)	76.2(3)	6-5/8REG LH
Upper Kelly Valve	XS146	146(5-3/4)	44.4(1-3/4)	4-1/2REG LH
Lower Kelly Valve	XS111	111(4-3/8)	38(1-37/64)	NC31
	XS121	121(4-3/4)	44.4(1-3/4)	NC38
	XS146	146(5-3/4)	44.4(1-3/4)	NC38
	XS165	165(6-1/2)	71.4(2-13/16)	NC50
	XS178	178(7)		NC50
	XS184	184(7-1/4)		5-1/2FH

The kelly valve has simple structure, convenient operation and reliable use. It has become an important part of the blowout prevention system in the drilling string and is widely used in the field.

There are three main failure modes of the kelly plug valve:

①The strength failure is mainly caused by the early fatigue fracture of the valve body. The reason for the strength failure is the unreasonable structure size, poor material, and improper heat treatment;

②The ball of the valve fails to rotate. This is because the frictional torque between the ball and the valve seat is too large, severely rusted, the valve seat is plastically deformed and the sealing surface is stuck with solid particles. The root cause of the rotation failure is the gap between the ball and the valve seat. Caused by excessive friction;

③Seal failure, the sealing structure of the plug valve consists of three parts, of which the main seal between the ball and the upper valve seat is particularly important. If it fails, the function of the plug valve as a stop valve will be completely lost. For this reason, on the basis of failure analysis, measures to reduce the above three types of failures are proposed.

production name:kelly valves

Style and size: OD5 3/4", 4 1/2IF , 5000PSI

Connection: NC38

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Company introduce

Our Services

KSQ Technologies (Beijing) Co. Ltd. is a company that shall cater to the needs of the construction and mining industries, with consideration on providing solutions to the following unique problems:

Hazardous environment
Acts, regulations, and other government guidelines that has to be followed
Significant differences in the way people work, mostly due to physical constraints
Avoiding downtime on major equipment which can cost tens of thousands of dollars per hour. The best solution with the most reasonable cost is a significant driver.

Company Information

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory

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Business Type:

Manufacturer,Exporter 
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Year Established:

2009 
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Total Annual:

3000000-5000000
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Employee Number:

50~100 
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Ecer Certification：

Verified Supplier 

KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capit... KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capit...

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KSQ Technologies (Beijing) Co. Ltd
Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
https://www.rock-drillingtools.com/