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340/342 Series
Nylon Coated Disc Valve
For industrial service requiring a Nylon coated disc for schedule 40 applications.

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SPECIFICATIONS
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FEATURES & BENEFITS
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- Size: 2" - 12" Wafer (340) and Lug (342) design
- Pressure Rating: Full cut disc 175 psi, lug bodies for dead end service 150psi, Under cut disc 50 psi
- Temperature Range: Dependent on materials
- Operator Options:
5 and 10 position handles
Gear operator
Electric or Pneumatic Actuators
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- Disc is coating with Nylon 11 (USDA approved)
- Engineered for higher Cv ratings than other nylon coated disc butterfly valves
- All valves tested to 110% of full pressure.
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MATERIALS
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- Body - Lug style has drilled and tapped lugs meeting ANSI 125/150 flange standards. Two-piece body allows ease of seat replacement. Lug body standard with Ductile Iron. Wafer body standard with Ductile Iron also available in Aluminum.
- Top Plate Standard ISO 5211 - accommodates all types of actuators; handles, gear operators, electric and pneumatic actuators.
- Disc/Stem - 17-4 PH stainless steel two-piece stem allows for thin profile disc. Disc is coated with Nylon 11, a vegetable based thermoplastic which is USDA approved and resistant to fungus growth and molds. It is corrosion resistant yet maintains a durable surface and low friction coefficient. Adverse testing conditions reveals no corrosion to underlying metal surfaces.
- Stem-Seal - A third seal ensuring absolute seal externally or internally for vacuum or pressure service. Matches seat material: Nitrile, EPDM, or Viton®.
- Stem Bushing - Composed of full strength, corrosion resistant ertalyte, stem bushings absorb operator side thrust. Top bushing comes standard in all valves.
- Bottom Stem Bushing: Oil impregnated bronze busing for less torque and longer valve life.
- Seat - Food grade seats of EPDM and Nitrile (black and white). Other seats in silicone and Viton®.
- Hub Seal or Primary Seal - Occurs when contact is made between the disc hub and the flat surface of the seat. Hub/seat seals prevent product from attacking stem or body.
- Flange Seal - Sealing O-Ring of resilient seat which provides an absolute seal to all flanges within specifications. No other gaskets required.
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PART NUMBER
AABBBCCCDDDEEE
AA=Size, BBB=Series,
CCC=Body/Disc Trim, DDD=Seat,
EEE=Operator
Size (inches): 02, 2.5, 03, 04, 05,
06, 08, 10, 12
Series:
340 - 1-Piece body wafer style
with nylon coated iron
342 - 1-Piece body lug style with nylon coated
disc
Body/Disc Trim:
170 - Ductile Iron/Nylon coated
ductile iron
180 - Aluminum/Nylon coated ductile iron
Add "U" for undercut disc
Seat:
514 - EPDM (White)
515 - EPDM (Black)
540 - Vitron
700 - Nitrile, All Season Black
701 - Nitrile, All Season White
Operator:
H10 - 10 position ductile iron
handle, H09 - 10
GI - Gear operator
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