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PTFE Lining Anti-Corrosion Control Valve

PTFE-Lining-anti-corrosion-control-valve

PTFE Lining Anti-Corrosion Control Valve

Body type: Straight through type, angle type, jacket insulation type
Plug type: Multistage throttle spool
Nominal diameter: DN15~350mm, NPS 1/2″~14″
Nominal pressure: PN 0.6~2.5MPa; CLASS 150LB
Applicable temperature: -30~+180°C (Optional according to working conditions)
Type of connection: Flange (RF side, FM side)
Flange distance: Meet IEC 60534, Non-standard customization
Gland type: Bolt compression type
Sealing gasket: Serrated metal gasket
Packing: PTFE, flexible graphite
Actuator: Pneumatic actuator, Electric actuator

Product Overview

The series of PTFE lining anti-corrosion control valve is produced by TangoValve Group. High pressure injection molding process is adopted for the contact medium part; and its internal lining is made of PTFE corrosion-resistant material, which can resist corrosion and aging by the media, such as hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, etc. The valve is sealed with PTFE bellows, and widely used in theprocess control of acid, alkali and other strong corrosive media, as well as toxic and volatile gas and liquid media in various processes.

Model Preparation

Z Actuator
Z Series Control Valve J: Pneumatic diaphragm actuator
R: Electric 3810L actuator
D: Electric PSL actuator
H Structural Style
H Straight Stroke PF: Fluorine-lined single-seatcontrol valve

 

Product Features

PTFE-lining-anti-corrosion-control-valve1

The series of PTFE lining anti-corrosion control valve is of the fluorine lining structure on valve body and internal parts, which effectively obstructs the corrosion of metal materials in the valve caused by corrosive medium. The inner cavity of the meta valve body is processed by tooth type processing, which makes the lining completely connected with the metal, and extends the service life and performance of the lining-F46 bellows seal and PTFE packing are used to seal the valve rod, which completely eliminates the possibility of medium leakage from the valve rod. The unbalanced full lining structure is especially suitable for the extremely corrosive medium under the condition of low pressure and normal temperature.

 

Design Features

1. With top guide structure

2. The inner cavity and inner parts of the valve body are all covered with Teflon.

3.Tefon bellows seal can be installed

4.Double seal protection,no leakage

5.Suitable for corrosive occasions

 

Carbon steel for body material*

PTFE-lining-anti-corrosion-control-valve-Structure1

No. Component Material 
1 Body WCB LCB WC9
2 Lining F46/F4
3 Plug 304 304 304
4 Gasket PTFE
5 Screw nut 304 304 304
6 Bonnet WCB LCB WC9
7 Stem 304 304 304
8 Packing PTFE
9 Lock nut 304 304 304
10 Pressing sleeve WCB LCB WC9
11 Plate WCB LCB WC9

 

Body Materials Stainless Steel*

PTFE-lining-anti-corrosion-control valve-Structure2

No. Component Material 
1 Body CF8 CF8M CF3M
2 Lining F46/F4
3 Plug 304 316 316L
4 Gasket PTFE
5 Screw nut 304 316 316L
6 Bonnet CF8 CF8M CF3M
7 Stem 304 316 316L
8 Corrugated pipe PTFE
9 Packing PTFE
10 Lock nut 304 316 316L
11 Pressing sleeve CF8 CF8M CF3M
12 Plate CF8 CF8M CF3M

Note: 1.The above is of standard confguration structure; The valve seat is metal seal, and the valve seat is soft seal, grade Vl optional. lt can provide valve trim of spray welding cemented carbide. 2.The conventional materialis carbon steel and stainless steel, and the special material regulating valve products can be customized according to the user’s work conditions.

 

Specification Parameters

Specifcation Parameter

Inside Diameter (mm) 20 25 32 40 50 65 80 100 125 150
Inside Diameter (in) 3/4″ 1″ 1-1/4″ 1-1/2″ 2″ 2-1/2″ 3″ 4″ 5″ 6″
Flow Coefficient (Kv) 5 10 16 25 38 63 80 120 220 300
Pneumatic Actuator HA/B-23 HA/B-34 HA/B-45
350 cm² 560 cm² 900 cm²
Mode of Action Spring Range Allowable differential pressure(MPa)
Gas Opening 20–100 KPa 1.16 0.7 0.44 0.28 0.18 0.17 0.11 0.07 0.07 0.05
40–200 KPa 3.34 2.14 1.31 0.84 0.53 0.51 0.33 0.21 0.22 0.15
80–240 KPa 6.4 4.99 3.05 1.95 1.25 1.18 0.78 0.5 0.51 0.36
Gas Off 20–100 KPa 2.23 2.14 0.87 0.56 0.35 0.34 0.22 0.14 0.15 0.1
40–200 KPa 6.4 6.4 5.86 3.64 2.3 2.21 1.43 0.91 0.95 0.66
80-240Kpa 6.4 6.4 5.04 3.18 3.06 1.98 1.26 1.32 1.32 0.92
Electric Actuator Allowable differential pressure(MPa)
Thrust(N) 800 2.38 1.52
2000 4.77 3.05 1.86 1.19 0.76
3000 2.79 1.79 1.14
5000 4.66 2.98 1.91 1.13 0.6 0.47
6500 1.35 0.8 0.57 0.39 0.26
10000 0.61 0.42

 

Actuator parameters

Model Pneumatic film actuator Electronic electric actuator
Form ZH22~ZH56 3810L, RSL
Type Multi spring Intelligent integrated type
Purpose Adjustment, switch Regulating
Drive Air pressure (spring range):
140 (20~100) KPa G
240 (40~200) KPa G
280 (80~240) KPa G
Power supply:
AC 220 V ±10% 50Hz
AC 380 V ±10% 50Hz
Joint Rc 1/4 Common type: 2–PF(G1/2”)
Flameproof type: 2–PF(G3/4”)
Positive Action Air pressure increases to push the valve to close Control signal increases to push the valve to close
Reaction Air pressure increases to push the valve open Control signal increases to push the valve open
Control Signal 4~20mA.DC (With positioner) Input output 4~20mA.DC
Lag ≤1% FS (With positioner) ≤0.8% FS
Linearity 2% FS (With positioner) ≤±1% FS
Ambient Temperature -10°C ~ +70°C
Surface Coating Black phosphating treatment
Actuator: Acrylic polyurethane paint
Optional Accessories Optional accessories, Hand wheel, Magnetic valve, Travel switch, Lock up valve Heater

 

Main Performance Parameters

Flow Characteristics Equal percentage, Straight line
Adjustable Range 50:01
Rated Cv Value Equal percentage: 10~1400
Straight line: 11~1500
Allowable Leakage Hard seal: Level-IV (0.01% rated flow of valve)
Soft seal: Level-V
Drive Mode Pneumatic Electric
Intrinsic Error (%) ±1.0 ±1.0
Return Difference (%) ≤1.0 ≤1.0
Dead Zone (%) ≤0.6 ≤1.0
Constant Point Deviation (%) ±2.5 ±2.5
Rated Stroke Deviation (%) ≤2.5 ≤2.5

 

PTFE-lining-anti-corrosion-diagram

Connection Dimension of Pneumatic Control Valve

DN (In) 20 (3/4″) 25 (1″) 32 (1-1/4″) 40 (1-1/2″) 50 (2″) 65 (2-1/2″) 80 (3″) 100 (4″) 125 (5″) 150 (6″)
L 150 160 180 200 230 290 310 350 450 480
H 52.5 57.5 75 75 85.5 92.5 100 110 142.5 158
H1 132 132 158 170 179 214 221 234 270 294
H2 285 285 285 285 285 360 360 360 470 470
H3 336 338 402 402 405 627 628 635 698 702
H4 153 153 153 153 153 181 181 181 247 247
A 200 200 200 200 200 240 240 240 350 350
C 282 282 282 282 282 360 360 360 470 470

 

Connection Dimension of Electric Control Valve

DN (In) 20 (3/4″) 25 (1″) 32 (1-1/4″) 40 (1-1/2″) 50 (2″) 65 (2-1/2″) 80 (3″) 100 (4″) 125 (5″) 150 (6″)
L 150 160 180 200 230 290 310 350 450 480
H 52.5 57.5 75 75 85.5 92.5 100 110 142.5 158
H1 132 132 158 170 179 214 221 234 270 294
H2 373 373 456 456 538 538 548 548 725 725
H3 336 338 402 402 405 627 628 635 698 702
H4 88 88 88 88 88 95 95 95 95 110
A 225 225 225 255 255 255 255 255 310 310

Note: 1.The dimensions in the table are standard data without accessories. The dimensions of accessories are calculated according to the actual configuration.2.Due to the technical innovation and improvement of the product, the size may change. Please contact the technical department of the Company for the latest information. 3.The actuated valve can be customized according to the actual size.

Specification Applications

PTFE lining anti-corrosion control valves are essential in industries requiring reliable flow control of aggressive and corrosive media. Their exceptional chemical resistance makes them suitable for handling strong acids, alkalis, and other reactive substances. These valves are commonly utilized in chemical processing plants, oil and gas refineries, pharmaceutical manufacturing, and water treatment facilities. The PTFE lining ensures durability and longevity, reducing maintenance needs and enhancing operational efficiency. Additionally, their ability to operate effectively across a wide temperature range broadens their applicability in various industrial processes.

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