Pneumatic Control Valve
Diaphragm Valve Pneumatic Actuator PTFE PFA Lined

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Diaphragm valve pneumatic actuator PTFE PFA Lined

Pneumatic PTFE PFA Lined diaphragm control valve is composed of pneumatic diaphragm actuator,straight through single seat fluoride (PTFE,FEP,PFA) Lined structure.Pneumatic PTFE PFA Lined diaphragm control valve contacted with the corrosive medium adopts the corrosion-resistant, anti-aging PTFE,PEP,PRA, the high pressure lining fluorine plastic process.Pneumatic PTFE PFA Lined diaphragm control valve is capable of controlling the flow of acid, alkali, aqua wang and other highly corrosive media, toxic volatile gas and liquid media.Therefore, Pneumatic PTFE PFA Lined diaphragm control valve is widely used in chemical, metallurgy, medicine and other industries.

Pneumatic PTFE PFA Lined diaphragm valve specification

Pneumatic PTFE PFA Lined diaphragm control valve
Body type:		 straight through casting globe type
Fluoride (PTFE,FEP,PFA) lined
Spool type: non-balanced single seat plug type
Nominal size: DN20~200,、 NPS 3/4〞~ 8〞
Nominal pressure: PN16 ~ 100、 CLASS 150LB ~ 600LB
Connection: flange: FF、RF、MF、RTJ
Welding: SW、BW
Flange dimension: According to to IEC 60534
Pneumatic PTFE PFA Lined diaphragm control valve
Bonnet type:		 Ⅰ:standard type（-29℃~150℃）
Packing: V type PFTE packing, flex. graphite packing, etc.
Gasket: Metal graphite packing
Actuator: Pneumatic: multi-spring diaphragm actuator, piston type actuator.

Material List

Component name Control Valve Material
Body/Bonnet WCB/CF8/CF8M/CF3M
Lined Material PTFE,FEP,PFA
Control Valve spool/Seat 304/316/316L Lined PTFE/FEP/PFA
Packing PTFE
Gasket PTFE
Diaphragm Cover Normal:Q235,Special:304
Diaphragm NBR with reinforced polyester fabric
Spring Normal:60Si2Mn,Special:50CrVa
Control valve stem 2Cr13/17-4PH/304/316/316L

Valve performance

Pneumatic PTFE PFA Lined diaphragm control valve Flow characteristic Linear, percentage, quick open
Allowable range 30: 1
Rated Cv value Percentage CV6.3~400 ，linear CV6.9~440
Pneumatic PTFE PFA Lined diaphragm control valve
Allowable leakage		 Soft seal: VI grade（foam grade）
Leakage standard: GB/T 4213
Pneumatic PTFE PFA Lined diaphragm control valve Performance
Intrinsic error(%) ±1.5
Return difference(%) ≤1.5
Dead zone(%) ≤0.6
Difference from beginning to end point(%) ±2.5
Rated travel difference(%) ≤2.5

Valve actuator specification

Pneumatic fluorine lined control valve
Type\ Method		 Pneumatic diaphragm actuator
PZMA-4~ PZMA-7
Multi-spring type
Usage Regulating type, ON-OFF type
Air supply pressure or Power supply voltage Air supply pressure (Spring range)
140（20～100）Kpa G
240 (40～200) Kpa G
280 (80～240) Kpa G
Connector Air pipe connector: RC1/4
Direct action Pressure increase, stem descend, valve close.
Reaction Pressure increase, stem ascend, valve open.
Input signal 40～20mA.DC（with positioner）
Lag ≤1%FS（with positioner）
Linear type 2%FS（with positioner）
Environmental temperature -10℃～+70℃
Pneumatic PTFE PFA Lined diaphragm control valve Accessories E/P, P/P valve positioner, filter regulator, valve converter, solenoid valve, limited switch
Non-standard accessories, need special customized notes.

Valve technical parameter

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fluorine Lined pneumatic control valve
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cryogenic pneumatic control valve
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FAQ

What are your prices?

Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information.

Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website

Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.

For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate your needs. In most cases we are able to do so.

You can make the payment to our bank account, Western Union,LianlianPay or PayPal:

30% deposit in advance, 70% balance against the copy of B/L.

We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone’s satisfaction

Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.

 

The shipping cost depends on the way you choose to get the goods. Express is normally the most quickest but also most expensive way. By seafreight is the best solution for big amounts. Exactly freight rates we can only give you if we know the details of amount, weight and way. Please contact us for further information.

 
 
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Nominal size, DN 20 25 32 40 50 65 80 100 125 150
Rated flow coefficient, Cv Percentage 8 12 20 32 50 70 100 200 240
Linear 5 10 16 25 38 63 80 120 220 300
Travel 16mm 25 mm 40mm 60mm
Pneumatic actuator
Diaphragm effective area, Ae (cm2)		 ZHA/B-22 ZHA/B-23 ZHA/B-34 ZHA/B-45
350 350 560 900
Action Spring range Pneumatic PTFE PFA Lined diaphragm control valve
Max. allowable pressure difference（MPa）
Air open 20-100KPa 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
Air close 20-100KPa 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
80-240 KPa 6.4 6.4 6.4 5.04 3.18 3.06 1.98 1.26 1.32 0.92