Informationen über den produzenten
Firma:
Nanjing Zhengyuan Group Co.,Ltd. |
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Adresse:
Shanghai Office: Room 26,Floor 16th,Lane 2025 West Zhongshan Road, Xuhui District, Shanghai,China,P.C.:200235 |
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Telefon:
+86-21-33681081 |
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PFA Ball Valve/Anti-Static Ball Valve/Coated Ball
Valves lined with PFA or FEP provide trouble free service in acid
environments,
they
are commonly used in pulp and paper operations,
for
Chlorine water, Chlorine dioxide, Sodium hypochlorite and sulphuric services.
General
:
->Nominal
Diameter(mm/in): DN25-DN100(1inch~4inch)
->Operation
Pressure: -0.1MPa~1.6MPa;
->Working
Temperature: -10C~180C;
->Lining:
temperature 120C, choose FEP for Body and
Bonnet;
temperature 120C~180C, choose PFA for Body and
Bonnet;
->Shell
and Nodular cast ion: QT400-15, compliy with standard of GB/T12227;
->Installation
and connection dimension:The structure length complies w ith the length
standard through
negotiable
selection in appendix A.5.3 0f HG/T3704.
->The
flange connection dimension complies with ISO7005-2 and PN16
standards.
Besides,
ANSI and BS standards are available by requirements.
Advantages:
->One
Piece ball and stem PFA Lined full port, Blow-out proof .
->The
lining of valve and ball can provide the general chemical corrosion-resistance
materials as PFA & FEP by requirements.
->As
for the innovative plate-type PTFE bellows filling structure, it can
automatically adjust between the movable filling
gland ring and spring tableting, and even though under the condition of
heat-cool cycle, the filling always has high
leak tightness and reliability for pre-selection loading.
->Even
though on condition of frequent alternation between coldness and heat.
it can realize the sealing effect for the flange of metal to metal
mode.
->It
has unified lining thickness in the sealing area to promote the ability for
resisting the permeable media
->Strengthen
the surface loading ability for labyrinth sealing through casting sealing lip.
Carry long life PTFE valve seat.
->It
adopts special spring valve seat design to ensure permanent leak tightness
within the range of the entire
pressure/temperature, including in condition of vacuum.
->It
can choose the lining with antistatic property.
->PFA
and FEP thermo-plastic valve lining with 3.5 mm's thickness, anti-seep,
anti-corrosion and anti-vacuum.
->As
for the high penetrability medium, it can adopt 5mms lining for the
over-current part in the valve.
Dimension:
DN
20
25
40
50
65
80
100
L
140
150
180
200
220
250
280
H
130
130
155
155
165
180
195
HL
165
165
240
240
280
315
315
Selection form of materials and accessories:
No.
Item
Material
Optional
1
Body
Ductile Iron+ lining
2
Bonnet
Ductile Iron+ lining
3
Ball
WCB+ lining
4
Valve seat
PTFE
5
Valve Bellows
PTFE
6
Handle
SS304
7
Stem
SS304
Cast steel
8
Valve gland
SS304
Galvanized carbon steel
9
Lining
PFA/FEP
Anti-static lining
10
Bolt
SS304
Galvanized carbon steel
11
Nuts
SS304
Galvanized carbon steel
12
Painting
Red epoxy coating
As required
13
Flange
ASME B16.5 Class 150
As required
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