PTFE Lugged Butterfly Valve Main Image

Brief Specifications:

Size Range: DN32-DN300 (1 1/4″-12″)
Body Materials: Rilsan Coated Ductile Iron, Stainless Steel (CF8M)
Disc Materials: PTFE, PFA, UHMWPE, Stainless Steel (CF8M), Duplex
Seat Materials: PTFE
Shaft Materials: 316 Stainless Steel, 17-4PH, Duplex
Applications: Chemical, Petrochemcial, Pharmaceutical, Petroleum
Pressure Rating: PN10/16 ANSI 150
Temperature Rating: Max 200°C

 

Mainly for use in highly corrosive environments and higher service temperatures the High Performance Lugged PTFE Butterfly Valve is Installed in piping systems as a dead end service Valve or where regular/predicted disconnecting of the pipe on either side may need to be removed for maintenance and installation without disruption to both sides of the line. The single piece body with threaded lugs is installed using two sets of bolts (One set for each flange) and enables the installer precise self centering capabilities of the valve due to the body design between flanges. This TTV Butterfly Valve is suitable for both on and off or throttling applications.

Lugged PTFE Concentric Features

TTV Butterfly Valves concentric design features a non toxic PTFE internal seal which also partially covers the outer body of the valve for perfect sealing with counter flanges. Thus avoiding any possibility of cross contamination and providing a butterfly valve that is extremely resistant to chemicals and solvents with complete insolubility to 300°C.

A single piece shaft design brings high strength and stability with direct mount capabilities for actuation assemblies and ensures fluid is again isolated from both the shaft and the body of the butterfly valve. This also eliminates the need for a customised mounting assembly kit which can bring additional costs and time.

TTV’s streamlined discs produce a much greater Cv than other butterfly valves on the market resulting in low pressure drops and reduced energy costs while maintaining a bi-directional zero leakage seal when in the closed position. Low operational torque and reduced friction reduces the costs of gear, pneumatic and electric actuation whilst extending the life of the valve seal. A silicone elasticised gasket facilitates the valve sealing.

For applications which require abrasion resistance the option of a UHMWPE (Ultra-High-Molecular-Weight-Polyethylene) is available for this particular butterfly valve.

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Design Standards

Pressure Testing: EN 12266-1, DIN 3230, BS 6755, ISO 5208, Body: 1,5 x PN, Seal: 1,1 x PN
Flange Connection: ISO 7005, DIN 2501, BS 4504, ANSI Class 150: ANSI B16.5
Face 2 Face: ISO 5752 Short, Series 20, BS155 Wafer Short/Medium, DN 3202 Part 3, Series K1
Top Connection: ISO 5211
Tolerances: ISO 2768-m
Seal Testing: ISO 5208, API 598

 

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