Specifications

drilling float valve subs
1).API STANDARD
2).SAFE,RELIABLE AND EFFICIENT
3).DELIVERY ON TIME.
4).COMPETITIVE PRICE

                                           API  drilling float valve subs chinese supplied

                                                                                                       Float Valve

Float Valve Sub is an important tool in petroleum exploration and drilling engineering.

 

The float valve sub is connected at upper part of drill bit, the float valve assembly in sub is near the bit connecting thread and the float valve sub also can be necessary position of drill string.

 

The main application is,when connect with single piece pipe, to prevent mud coming in, mud up returning and blocking hole. When blowout takes place,blowout in drill string will be avoided because nozzle is closed automatically by valve cap for float valve assembly .

 

When ordering please specify:

1.  Float valve type (Model F or Model G);

2.  Float valve size;

3.  Connection and O.D of sub.

 

 

For a correct choice of float valves depending on API Connection, consult the following table : 

Type	Dia. of Valve Assembly mm(inch)	Length Of Valve Assembly mm(inch)	Dia. Of Float Recess mm(inch)	Sub Box		Other Popular Connections
				Connection API	Depth Of Recess  mm(inch)	Connection API	Depth Of Recess mm(inch)
1R	42.1(1-21/32)	149.2(5-7/8)	42.9(1-11/16)	2-3/8Reg.	231.8(9-1/8)	NC23	231.8(9-1/8)
2F-3R	61.1(2-13/32)	165.1(6-1/2)	61.9(2-7/16)	3-1/2Reg.	266.7(10-1/2)	NC31	260.35(10-1/4)
3-1/2 F	79.4(3-1/8)	254(10)	80.2(3-5/32)			NC38	362.0(14-1/4)
4R	88.1(3-15/32)	211.1(8-5/16)	88.9(3-1/2)	4-1/2Reg.	325.4(12-13/16)	NC44	331.8(13-1/16)
5R	98.4(3-7/8)	247..7(9-3/4)	99.2(3-29/32)	5-1/2Reg.	374.7(14-3/4)	NC50	368.3(14-1/2)
5F-6R	121.4(4-25/32)	298.5(11-3/4)	122.2(4-13/16)	6-5/8Reg..	431(17)	5-1/2IF	431.8(17)

 

 

 

 

  Minimum Order Quantity: 1 piece

   We are committed to provide you most of the products in the shortest time.

 

  

 

 

Cangzhou Lockheed Drilling Equipment Parts Co., Ltd. is a professional technology-oriented 

enterprise specialized in the production drilling equipments and tools, which is one of 

the leading corporations of drilling tools and workover fishing tool manufacturing 

industry. Including three series with full model types,as follows:

Drilling Bit series: rock roller bit,tricone bit,pdc drill bit,single bit,cone bit and hole opener; 

Drilling Equipment Parts series: manual tong,elevator,slips,stabilizer;

Workover Fishing Tool series: releasing spear,junk basket, overshot,reversing sub,die collar, fishing tap etc.

 

Cangzhou Lockheed Drilling Equipment Parts Co., is located at the center of Beijing-Tianjin-Hebei-Shandong-Henan-Region which is adjacent to National Expressway No.106, 

166km away from Beijing, 110km away from Tianjin and 35km away from Baiyangdian, the Pearl of 

Huabei Area. More convenient transport,faster delivery,and more trustful enterprise is your best choice.

 

Our goal: Strive for Perfection and Win by Quality.

 

 

  

1. How to order the products? 
Answer: 
Send the inquiry with detail item description or with Model number. 
If there is no packing demand we take it as sea-way packing. 
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding. 
2. About lead time and shipping time? 
Answer : 
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement. 
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.

3.Can I expect a quality products? 
Answer : 
Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.