Technova Butterfly Valves

Main Features:

• Heavy-duty, compact construction
• maintenance-free
• Bubble-tight shut-off throughout the full pressure and temperature range
• wide selection of high-quality liner and disc materials for economical valve performance
• Unique shaft sealing arrangement assures maintenance-free operation at automated processes and high operating prerssures, with optimized and reinforced liner shape
• One-piece disk/shaft for hysteresis-free flow control, with polished sealing surface, leading to low torque values
• Wide and chambered flange sealing surface does not require additional flange gaskets
• Flange drilling according to DIN PN10/16 resp. ANSI 150lbs for installation into existing piping systems

Typcial Service Applications:

• Chemical CPI
• Petro-Chemical
• Bio-Technical
• Pharmaceutical Industry
• Semi-Conductors
• Pulp and paper
• Food processing
• Paint and Pigments
• Textile Industry
• Mining and Steel
• Steel / Metal processing
• Desalination
• Chlor Alkali
• Water Treatment
• Detergents, Oils and Fatty Acids

Technical Data:

• Nominal Sizes: DN25 - DN1000 respectively 1" - 42"
• Flanges according to DIN PN10/16 resp. ANSI 150lbs
• F/F acc. to EN 558-1 range 20 respectively ASME B15.10
• Bodies: Cast steel ASTM A216 WCB, CF-8M, ISO flange
• Liners: PTFE, PTFE-AS(conductive), UHMWPE
• Discs: PFA, PFA-AS, PVDF- or ETFE-encapsulated, solid made of SS Duplex, Titanium Gr.2, Hastelloy
• Elastomer backings: VMQ (Silicone), FPM (Viton), EPDM

Operating Conditions:

(depending on material selection)

• Pressure 1mbar (0.14psi) up to 16 bar (232 psi)
• Temperature -40C (-40F) up to +220C (+428F)

Dynamic Sealing System (standard):

• Shaft sealing Pre-loaded, dynamic shaft sealing arrangement
• the pressure ring transfers the bellevill-spring action and elastomer compression force onto liner and disc hub, providing a bubble-tight shaft sealing mechanism for upper and lower section.
• Elastomer Backings provide a resilient and uniform pressure onto sealing surface for positive tight shut-off, available in various qualities
• One-piece disc/shaft, SS Duplex (1.4462) cores with encapsulations made of PFA, PFA-AS, PVDF, ETFE or solid discs made of SS Duplex, Titanium Gr.2, Hastelloy C etc.

Testing / Marking:

• Pressure and tightness testing acc. to prEN 12266-1, leakage rate A, and sparking at 35 kV to assure lining integrity. Marking on valves on body and name plate according to EN 19.
• Material respectively test certificate according EN 10204-3.1B

Valve Construction Diagram

	Mounting Top flange according to EN ISO 5211, including O-ring Name Plage 1.4301 (SS304) Marking according EN 19 One-piece disc/shaft, solid or encapsulated minimum 2.5mm Liners made of PTFE, PTFE-T or PTFE-AS (anti-static), thickness minimum 3mm, with VMQ or FPM backing Body Bolts made of 1.4301, A2-70 (SS304) Flange Standard according to EN 1092 or ASME B16.5 Body made of cast steel 1.0619 (WCB), powder-coated RAL 5005 signal-blue or stainless steel casing 1.4408 (CF-8M) Rated Breaking Point Double-D shaft according to EN 12116

Dynamic Shaft Seal:

Triple shaft bearning Belleville springs Pressure ring Elastomer insert Guide Ring

Mounting Options:

Limit switch box Filter Regulator Solenoid valve Manual override Locking Handle N0AMUR bracket Position indicator SPA Pneumatic actuator Bare shaft DD Manual gearbox ISO mounting kit Silencer Throttling valve & Silencer El. Pneumatic positioner

Valve Wafer Parts List:

Body two-piece, RAL 5005, WCB Liner, PTFE Disc Encapsulated, Duplex/PFA Elastomer, VMQ Elastomer Pad, VMQ Pressure Ring, Carbon Steel Guide Ring, C.Steel Elastomer Insert, VMQ Belleville Spring, Spring Steel Bearing DU, C.Steel/PTFE O-Ring top, FPM Socked Head Cap Screw, A2-70 Name Plage 42x14 CE, A2 Hammer Screw 2.49x4.76, A2

 

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