Kelly Valve also named Kelly Cock/ Drill Pipe Safety Valve allowing free passage of drilling fluid without pressure loss. The valve can
be used as a dill pipe safety valve or upper Kelly valve to control blowout pressures, or as a lower Kelly Valve to prevent loss
of drilling fluid when the Kelly is disconnected. It has a pressure rating of 5,000psi or 10,000psi or 15,000psi
Welcome to TradeChina
API Kelly Valve / full opening Safety cock Valve for drill pipe
FOB Reference Price
Purchase quantity ()
Minimum order quantity
Payment
Meo Textile Clothing Co.LTD
China - Hangzhou
Manufacturer
Trade Capacity
Export Percentage
Nearest Port
shanghai,ningbo
Accepted Delivery Terms
Employees
101-200 people
Accepted Payment Currency
USD,CNY
Average Lead Time
60 Day(s)
Certifications
Product Specifications
Model Number
7.48inch (190)
Product Description
Product Description
Kelly Valve is a manually operated ball type drill stem valve; it is divided into upper Kelly valve and lower Kelly valve.
Kelly Valve features:
The sealing principle for Kelly valve is that the ball is positioned and provided with proceeding stress by the lower seat
supported by spring load and a close seal between ball and ball seat is provided.
During normal drilling operation, the hole is kept unblocked by turning the stem to be “on” position; In case of kick or blowout,
turn the operating stem to be “off” position to close off the internal bore of drill string, the kick or blowout accident is
avoided due to a high pressure sealing situation between ball and ball seat.
Kelly Valve features:
The sealing principle for Kelly valve is that the ball is positioned and provided with proceeding stress by the lower seat
supported by spring load and a close seal between ball and ball seat is provided.
During normal drilling operation, the hole is kept unblocked by turning the stem to be “on” position; In case of kick or blowout,
turn the operating stem to be “off” position to close off the internal bore of drill string, the kick or blowout accident is
avoided due to a high pressure sealing situation between ball and ball seat.
Usage
Principle & Structure
lower valve seat, spring, ball valve, knob case, knob, upper valve seat, sealing ring and so on. The
sealing principle: the spring supports the lower valve seat to locate the ball, and that can
make the ball contact with the ball seat’s sealing closely. When open, the water hole is unblocked, when
close, the surface of the ball sealed against the water hole, the inner annular pressure acts on the ball
to make the ball and the ball seat in high pressure and sealing situati
Related Products
After Sales Service
Our service
1. Consultation
Accept Various questions and inquiries from customers to raise the fame of products among customers
Provide customers with all the needed products information to make product features known and clear.
2 Design
Deeply analyze the requirements of customers in sites
Individual designs are done specially for different demand of customers
2. Training service,
Trainer operators without Charges In china
Train repairmen without Charges In China
4 3-R(replace, repair and refund) service
Man-functional parts and components(excluding consumables) can be replaced or repaired without charges in the first year.
After 3-R service period, repair is free and parts are charged on in their factory price.
5. Follow-up service
We are 24 hours response. Trouble can be removed and answers can be given to customers in limited time
ۙ����S��
Accept Various questions and inquiries from customers to raise the fame of products among customers
Provide customers with all the needed products information to make product features known and clear.
2 Design
Deeply analyze the requirements of customers in sites
Individual designs are done specially for different demand of customers
2. Training service,
Trainer operators without Charges In china
Train repairmen without Charges In China
4 3-R(replace, repair and refund) service
Man-functional parts and components(excluding consumables) can be replaced or repaired without charges in the first year.
After 3-R service period, repair is free and parts are charged on in their factory price.
5. Follow-up service
We are 24 hours response. Trouble can be removed and answers can be given to customers in limited time
ۙ����S��
Company Introduction
Dongying Qixiang Import &Export Co.,Ltd(hereinafter as DYQX Petro company) was founded in January, 2013, in the Yellow River
delta （Shengli Oil Field, the second large oil field in China）--- Dongying City, Shandong Province. Its business covers drilling
and workover rigs spare parts,, solids control equipment,wellhead equipment and tools, oiflied fishing tools ,downhole tools,
drilling strings,OTCG and other equipments related with petroleum. Strictly abide by ISO9001 quality system certification and API
standard. At the same time, we build one new workshop for the forging and casting production for the oilfield tools, We can offer
the precision forging and casting production according to the customer’s drawing.Or our engineers help the customer’s design and
drawing, then make production for the customers.
DYQX Petro company follow the principle of "quality is lifeline, science and technology innovated, people oriented",, it benefits
from the convenient running, high efficiency, swift reaction, experienced experts and the advanced management. In a meanwhile, it
has about 50 sub-contractors to cooperate all over the country, and it always sticks to good faith, strictness, specialty,
innovation, also satisfactory service.our products have already been exported to USA,Canada, South America, Africa, Middle East,
Russia and some other countries (regions).
The target of DYQX Petro company Enterprise: To establish an international first-class enterprise, and become a professional
petroleum equipment supplier,supply chain company and oilfield engineering services company.; "providing the most qualified
products, most competitive prices and most professional service for every customer " as its mission and Provide consistent
after-sales service.
DYQX Petro company mainly engages in offering oil drilling and production equipment and providing oilfield technical service.Our
target is to supply our products and spread company culture to all over the world. We will build a new stage, and we will welcome
all the friends from all over the world, to cooperate sincerely and create our brilliant future!
delta （Shengli Oil Field, the second large oil field in China）--- Dongying City, Shandong Province. Its business covers drilling
and workover rigs spare parts,, solids control equipment,wellhead equipment and tools, oiflied fishing tools ,downhole tools,
drilling strings,OTCG and other equipments related with petroleum. Strictly abide by ISO9001 quality system certification and API
standard. At the same time, we build one new workshop for the forging and casting production for the oilfield tools, We can offer
the precision forging and casting production according to the customer’s drawing.Or our engineers help the customer’s design and
drawing, then make production for the customers.
DYQX Petro company follow the principle of "quality is lifeline, science and technology innovated, people oriented",, it benefits
from the convenient running, high efficiency, swift reaction, experienced experts and the advanced management. In a meanwhile, it
has about 50 sub-contractors to cooperate all over the country, and it always sticks to good faith, strictness, specialty,
innovation, also satisfactory service.our products have already been exported to USA,Canada, South America, Africa, Middle East,
Russia and some other countries (regions).
The target of DYQX Petro company Enterprise: To establish an international first-class enterprise, and become a professional
petroleum equipment supplier,supply chain company and oilfield engineering services company.; "providing the most qualified
products, most competitive prices and most professional service for every customer " as its mission and Provide consistent
after-sales service.
DYQX Petro company mainly engages in offering oil drilling and production equipment and providing oilfield technical service.Our
target is to supply our products and spread company culture to all over the world. We will build a new stage, and we will welcome
all the friends from all over the world, to cooperate sincerely and create our brilliant future!
Our Services & Strength
Products Quality is our lifeline, reputation is our base, They are the first position in our mind,
Then we can be long term friendship with every client.
Then we can be long term friendship with every client.
FAQ
Skype：eve.liu06211988
Mobile:0086-18554639639
whatsnap:0086-18554639639
Email: sales@dyqx-petro.com
Email: sales@dyqx-petro.com
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