FOB Price
Obtenir le dernier prix( Negotiable )
|Minimum Order
Localité:
-
Prix de commande minimale:
-
Commande minimale:
-
Packaging Detail:
-
Delivery Time:
-
Supplying Ability:
-
Payment Type:
T/T, L/C
Personne àcontacter Mr. Peter
Room 1113 Zhonghong xiangsuChaoYang Road, Chaoyang District,, Beijing, Beijing
Thermal Power Plant Valve
Forged Steel Metal Seated Ball Valve with Downstream Protection
Features:
1. Zero Leakage
VOLK FLOW CONTROLS, INC guarantees Zero Leakage.
2. Protection Device on the Stem The protection device on the
stem will prevent stem moving downward when subjected to abnormal
external force. Composed of a protection sleeve and screwed nuts,
the protection device can adjust position through screw thread
screw thread on the stem during installation, preventing the
downward movement of the stem, which ensures seal.
3. Stem Blow out Protection
The cutting sleeve on the stem has diameter larger than the stem
shoulder, which can prevent the blow out of the stem.
4. Reliable packing gland design and the use of Belleville
springs provide long lasting, maintenance-free, stem packing seal
and tightness.
5. Isolated Body Cavity
The ball and seat are in full constant contact, isolating the body
cavity from flow to prevent build-up of solids.
6. Quarter Turn Valve
The quick *0 degree rotation of the stem of the quarter turn valve
reduces the wear of the stem and the packing and prolongs the
service life of the packing. Its quarter turn operation and zero
leakage make this valve ideal for Emergency Shut Down
applications.
7. Application of HVOF Coatings
The ball and seat are chromium or tungsten carbide impregnated by
HVOF coating techniques with surface hardness of Rc ****2 and are
mate-lapped to a very high RMS finish (5 micro inches RMS),
providing Zero Leakage, and long, maintenance free service
life.
8. Inconel **8 Belleville Spring
The Belleville Spring maintains tight constant contact between
seats and ball, therefore protecting seats in an open and closed
position and allowing valve to seal bubble tight under both high
and low pressure operations.
9. Belleville Spring Guide Sleeve
In case of incorrect installation or reverse flow pressure, the
design prevents the ball and the upstream seat from blowing
out.
Application
Main feed water pipeline drain
Main steam pipeline drain
Inner Cylinder drain
Outer Cylinder drain
Reheat Connecting pipe drain
Reheater inlet drain
Reheater desalt drain
Primary economizer recirculation flow element
Primary main feed water flow element
Main steam valve inlet pressure (right)
Reheat steam pressure (left, right)
Regulating stage outlet pressure
Superheater secondary desalt pipeline exhaustion
Economizer vent
