Flapper Valve
with Spring& Pin
Drilling Rig Spare Parts
Full Flow Drill Pipe Floate Valve
Material: AISI 8620 Steel
Process: Investment Casting
IS9001: 2000
Heat Treatment: Carburization
Machined by NC Machine, Universal Milling Machine
Dimensions and tolerances per ANSI Y14.5-82
1. These flappers are cast by Investment Casting Process and used for Drill Pipe Float Valves.
2. Heat Treatment: Carburize at 1500-1550° F to. 005/. 010 depth with hardness 58 RC Min.
3. All the products are made according to ISO9001: 2000.
4. We mainly produce the products as per customer's drawings.
5. Small orders and special design is accepted.
Qingdao singho industrial company Co., Ltd. is recognized as a qualified and proven producer and supplier of castings and finished machined parts to a wide range of industries. The materials of the parts include grey iron, ductile iron, carbon steel and stainless steel etc. We use sand casting and investment casting process to cast raw parts then we finish the machining by CNC or nc machines to achieve reliable and precise finished parts. Our present parts are used in the following fields: Centrifugal pump, filters, valve and oil drilling machinery etc. We are proud to account some of the worlds leading companies as our customers and partners.
We have advanced equipments such as vertical CNC, horizontal CNC and nc machines etc. We also have common equipments such as milling lathes, vertical lathes, center lathes, radial drilling machines etc. We still have CMM machine to control tolerances.
We are certified by ISO9001: 2000. In order to meet an ever-growing needs and expectation our QC system will be improved continually.
Based on our advanced equipments, more than 10 years experience and QC system, we have powerful ability to develop new items according to our customer's drawings or samples. Located in qingdao, one of the biggest and busiest ports in China, we are well-placed to expedite shipment of our products all over the world.
We only need one of your email, fax or phone call.
