Description
Technical Data Sheet
Fully Lined Fluorine Butterfly Valve – Lug Type – Split Body – Manual Operation
Product Name: Wafer Type Fully Lined Fluorine Butterfly Valve (Split Body)
- General Information
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Item
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Specification
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Valve Type
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Concentric Butterfly Valve, Fully Lined with FEP (Fluorinated Ethylene Propylene)
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Body Design
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Split Body (Two-piece body, suitable for lug mounting, facilitates liner replacement)
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Connection Type
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Lug Type (Tapped lug holes for dead-end service), conforming to ISO 5752 / GB/T 12238
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Nominal Size
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DN50 ~ DN600 (2″ ~ 24″)
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Pressure Rating
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PN10 / PN16 / Class 150LB
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Medium Suitability
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Strong acids, strong alkalis, organic solvents, corrosive gases/liquids
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Operating Temperature
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-20°C to +150°C (FEP long-term ≤120°C; PTFE seat suitable for wide temp range)
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Operation
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Manual (Lever Handle or Gearbox, depending on torque requirement)
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- Design Standards & Specifications
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Item
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Standard
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Design & Manufacturing
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GB/T 12238, API 609, MSS SP-67
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Face-to-Face Dimensions
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ISO 5752, GB/T 12221 (Series 13/14)
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Flange Connection Dimensions
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GB/T 17241.6, HG/T 20592, ASME B16.5 (Conforming to wafer/lug type)
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Pressure Testing
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GB/T 13927, API 598
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Lining Quality
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HG/T 4077, HG/T 4078
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- Main Component Materials
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Part Name
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Material Specification
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Remarks
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Body
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Ductile Iron (QT450-10) / Cast Steel (WCB)
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Split body construction, internal/external coated with anti-corrosion paint
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Lining
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FEP (Fluorinated Ethylene Propylene / F46)
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Thickness ≥3mm, fully encapsulates body passage and flange sealing faces
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Disc
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Ductile Iron / Cast Steel (FEP Lined) or Stainless Steel (FEP Overmolded)
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Fully lined to prevent media contact with metal
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Seat (Seal Ring)
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PTFE (Polyetrafluoroethylene)
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Pure PTFE or Reinforced PTFE; Replaceable, provides excellent chemical resistance and low friction
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Stem / Shaft
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Stainless Steel 2Cr13 / 304
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Corrosion-resistant, pinned connection to disc
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O-Ring / Packing
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Viton (FPM) / PTFE
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Stem sealing to prevent external leakage
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Manual Operator
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Cast Iron Lever / Aluminum Gearbox
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Includes positioning/locking device
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- Technical Parameters & Dimensions (Reference, PN10/PN16)
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Nominal Size (DN)
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Face-to-Face (L) mm
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Flange Bore Dia. (Φd) mm
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Bolt Circle Dia. (D1) mm
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Disc Diameter (ΦD) mm
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Operator Type
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Approx. Weight (kg)
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DN50
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43
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125
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110
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102
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Lever
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5
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DN65
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46
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145
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130
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122
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Lever
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6.5
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DN80
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46
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160
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150
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138
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Lever
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8
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DN100
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52
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180
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170
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158
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Lever
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10
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DN125
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56
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210
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200
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188
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Lever
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13
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DN150
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56
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240
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225
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212
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Lever
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16
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DN200
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60
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295
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280
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268
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Gearbox
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25
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DN250
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68
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350
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335
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320
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Gearbox
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35
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DN300
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78
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400
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395
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370
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Gearbox
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50
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DN350
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78
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460
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445
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430
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Gearbox
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65
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DN400
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102
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515
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495
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482
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Gearbox
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85
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DN450
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114
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565
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550
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532
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Gearbox
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110
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DN500
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127
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620
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600
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585
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Gearbox
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140
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DN600
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154
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725
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705
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685
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Gearbox
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190
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*Note: The above dimensions are based on the PN16 standard. Actual dimensions should conform to the manufacturer’s certified drawings. Lug connections comply with HG/T 20592-2009 (PN10/16).*
- Testing & Inspection
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Test Item
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Test Pressure (PN10)
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Test Pressure (PN16)
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Acceptance Criteria
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Shell Test
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1.5 × PN = 15 bar
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1.5 × PN = 24 bar
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No visible leakage, no structural damage
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Seat Test (PTFE)
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1.1 × PN = 11 bar
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1.1 × PN = 17.6 bar
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Bi-directional sealing, zero leakage (Class A per GB/T 13927)
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Lining Spark Test
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5~20 kV depending on thickness
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No breakdown
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- Product Features & Options
- Split Body Design: The valve body consists of two halves bolted together, facilitating the molding process of the lining and allowing for easier liner replacement or maintenance.
- Fully Lined Construction: All wetted metal surfaces (including body passage, flange sealing faces, and disc) are encapsulated with fluoroplastic, providing excellent corrosion resistance.
- PTFE Seat: Provides low friction coefficient, excellent chemical resistance, and long service life. Suitable for most corrosive media.
- Lug Type Connection: The valve body has threaded lugs, allowing it to be bolted between flanges using studs. This permits dead-end service and allows removal of one side of the pipeline without affecting the other.
- Manual Operation:
- DN50-DN200: Standard Lever Handle, allowing variable opening positions with a locating pin to lock in fully open/closed positions.
- DN250-DN600: Standard Gearbox with self-locking function for easy operation, complete with a handwheel.
- Optional Configurations:
- Extended stem or extended lever handle (for insulated pipelines).
- Anti-static device (conforming to ISO 5211).
- Position indicator or limit switch.
- Installation & Maintenance Notes
- Ensure the disc is in the closed position during installation to avoid forcing alignment.
- Use corrosion-resistant gaskets (e.g., PTFE gaskets) for flange connections.
- Do not force the handle when the valve is fully closed to prevent damage to the PTFE seat.
- Regularly check the tightness of handle or gearbox mounting bolts and maintain lubrication.
Note: This data sheet provides general specifications. For specific projects, please refer to the manufacturer’s final drawings and parameters.
GUATANTEE:
SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.
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