Lugged Butterfly Valve

Brief Specifications:

Size Range: DN32-DN1600 (1 1/4″-64″)
Body Materials: Ductile Iron, WCB, Stainless Steel, Duplex, Super Duplex
Disc Materials: Ductile Iron, WCB, Stainless Steel, Duplex, Alu-Bronze, Monel,
Seat Materials: Buna, EPDM, Viton, Silicone
Shaft Materials: 420/304/316 Stainless Steel, Monel, Duplex, Super Duplex
Applications: Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air
Pressure Rating: PN10/16/25-ANSI 150/300 LBS
Temperature Rating: Min-50°C Max180°C

 

Lugged Butterfly Valves are commonly used 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.

TTV Butterfly Valves concentric design features an elastic, replaceable or vulcanized seat that takes the shape of both the inside and partially outer side of the body of the valve to form a perfect seal with relevant pipe flanges.

A single piece shaft design brings high strength and engineering with direct mount capabilities for actuation assemblies. The “Dry Shaft” feature ensures fluid is again isolated from both the shaft and the body of the butterfly valve.

Hand Polished, Streamlined Lugged Butterfly Valves

Hand polished, 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 bubble tight seal in the closed position. Low operational torque reduces the costs of gear, pneumatic and electric actuation with low friction contact extending the life of the self cleaning seal.

Replaceable seals offer flexibility and cost effective solutions without the cost of a complete new valve. Reducing lead times and unnecessary downtime for End Users.

 

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: EN 558 Series 20, ISO 5752 Series 20, API 609 Table 1, BS 5155 Series 4
Top Connection: BISO 5211
Tolerances: ISO 2768-m
Seal Testing: ISO 5208, 100% Tight Shut Off, API 598

 

TTV-3