Tungsten Carbide Valve Seats FAQ FOR CLIENTS

본문 바로가기


Home > Product > Tungsten Carbide Valve Seats FAQ FOR CLIENTS
Selling leads
Tungsten Carbide Valve Seats FAQ FOR CLIENTS
Posting date : Aug 12, 2019
Membership
Free Member Scince Sep 30, 2018
FOB Price
-
Min. Order Quantity
100 sets
Supply Abillity
40000 sets per year
Port
Shanghai
Payment Terms
T/T, L/C
Package
wooden case
Keyword :
Category
Contact
Aaron
Selling Leads Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
KAITIANFU
HS-CODE
-
Package & Delivery Lead Time
Package
wooden case
Delivery Lead Time
60 days
Detailed Description
Valve Seat: The detachable surface parts in valve are used to support the valve spool in the fully closed position and constitute a sealed part. Generally, valve seat diameter is the maximum flow diameter of the valve. 
PRODUCT PARAMETERS
Valve Seat: The detachable surface parts in valve are used to support the valve spool in the fully closed position and constitute a sealed part. Generally, valve seat diameter is the maximum flow diameter of the valve. Elastic sealing material and small actuator's thrust force is used to obtain tight seal of air bubble, compression valve seat's sealing stress elastically deforms the material and squeezes it into the rough surface of the matching metal part to block all leakage paths. The permeability of material is a basis for small amount of leakage for fluid. The seal must be carefully fixed to prevent cracking and air leakage due to differential pressure. Bonding soft valve seat to metal part is one way, but it cannot completely solve the problem because the bond breaks and fails when exposed to thermal shock. A sufficiently large pressure drop will destroy the bonding material. HVOF tungsten carbide coating ultrasonic spraying equipment is used to optimize thermal spraying process so that the denseness of coating can meet the gas sealing requirements under up to 140MPa, the porosity of coating <1%, the bonding strength exceeds 75MPa, the hardness can reach HV1500 and the hardness uniformity fluctuates by no more than HV100; the product surface after coating can reach mirror surface, with roughness less than Ra0.1, and flatness no more than 2 bands, which can effectively reduce the coefficient of friction between Valve Gate and valve seat and improve its service life.

ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us
Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea
About Us Privacy Policy Terms of use Copyright © 2000-2024 ECROBOT.COM. All rights reserved.
Top