PTFE Double Flanged Butterfly Valve , Anticorrosion 4 Inch Butterfly Valve For PVC
Brand Name:YFM
Certification:CE,SIL
Model Number:D371F
Minimum Order Quantity:1PC
Delivery Time:12 WORK DAYS
Payment Terms:L/C, T/T, D/A, D/P
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Location:
Wenzhou Zhejiang China
Address:
NO.1-1Qianjie Street High-tech Zone Longwan District Wenzhou City Zhejiang Province China
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within 25 hours
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Product Details
Flanged RF DIN JIS ANSI Standard PTFE Full Lined Butterfly Valve for PVC
Technical Specification
Design and Manufacture Standard: ASME B16.34, HG/T 3704
Face-to-face Dimension: ASME B16.10 , GB/T 12221
Flange Standard: ASME B 16.5 ,GB/T 9119 ,DIN ,JIS
Inspection and Testing: API 598, GB/T 13927
Product Specification
Body Material: WCB, ASTM A395 , CF8 ,CF8M
Lining Material: PTFE , PFA , PO ,FEP, EPDM
Nominal Diameter: 2"-80"(DN50~DN2000)
Pressure Range: Class150 , PN6 , PN10 , PN16
Connection Type: Flange ,Wafer , Lug Connection
Operation Method: Manual ,Worn gear ,Electric ,Pneumatic actuator
Products Decription:
1. The lined butterfly valves bi-directional flow is possible at maxmium operating pressure. Since the valve port corresponds to the piping diameter, a high flow capacity is guaranteed.
2. It features ease of maintenance, repeatable on-off, long life
durability.
3. The concentric design is commonly used in the power generation,
brewing, water and food industries and suitable for both gaseous
and liquid service. Typically applied in chemical/petrochemical
process, food and beverage, and pulp and paper etc.
4. Lining material: PTFE, PFA, FEP, GXPO etc.
5. Connection type: wafer, flange, lug etc.
6. Operation methods: manual, worm gear, electric, pneumatic and
hydraulic actuator.
7. Youfumi lined three-way ball valves are available as per the needs of applications in additional sizes and other than standard materials.
Single-piece disc/stem unit optionally fluoroplastic
Lined with pure PFA for maximum corrosion resistance and a long
service life.Very low friction values and torques during opening
and closing due
to the combination of a PFA disc/stem unit with a PTFE body
Optionally antistatic PFA-L
Disc/stem core made of highly torsion resistant Duplex stainless
steel 1.4517/CD-4 MCu(18“-40“/DN 450-1000: SS 1.4435/316L)
Alternatively metallic
Made of precision cast stainless steel Polished sealing surfaces,
therefore very low friction values
Polished disc surfaces on request
Other materials on request, e.g. Hastelloy® C, titanium
Thick-walled PTFE and TFM-PTFE lining of the valve body
TFM-PTFE lining (2“-16“/DN 50-400 with PFA-lined disc: PTFE as
standard, optionally TFM-PTFE)
Lining thickness 0.12- 0.15“ (3 -3.5 mm)
High permeation resistance
Vacuum-proof
Optionally antistatic PTFE-L, PE-UHMW
Wide sealing surfaces of body
lining for reliable sealing even with mating flanges with large
radii, e.g. glass-lined components.
Permanently elastic seal in the valve opening by means of silicone
insert under the PTFE body lining.
Optionally FKM insert (e.g. Viton®) for use with chlorine gas for
example.
Double-action, maintenancefree and self-adjusting top and bottom
stem sealing
therefore reliable even with many switching cycles and fluctuating
temperatures:
primary: body lining against disc/stem shoulder
secondary: O-ring PTFE, optionally RPTFE.
Long valve neck
permits optimal heat insulation without the installation of an
elevated lever, additional stem extensions on request.
External corrosion protection
Epoxy coating, nuts and bolts made of stainless steel.
Centering to ISO 5211
Chlorine electrolysis options
Specially for use with wet chlorine gas:
Elastic insert made of Viton instead of silicone Body lining made
of particularly
permeation-proof, modified PTFE instead of standard PTFE Body nuts
and bolts made of steel, for example, instead of stainless steel
Tantalum-coated ductile iron body
PTFE Double Flanged Butterfly Valve , Anticorrosion 4 Inch Butterfly Valve For PVC
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