Products

SPEARS butterfly valves are designed for industrial & chemical applications. Ideally suited to flow control or throttling applications, this patented design eliminates the seat creep & reduce operating torque compared to traditional liner type designs. A wide variety of options & configurations ensure the ideal valve for every application.

SPECIAL OFF-SET DISC

• Lifts quickly from seal face to reduce wear & operating torque.
• Patented limited contact seat design with initial parallel travel eliminates seat creep, extrusion & wear. 
• Self cleaning action to flush solids from seal faces.
• Field replaceable seal without full valve disassembly.
• Interlocking body & seat prevents wash out & blow out.
• Buna-N, EPDM or FKM (Viton) seals.

SOLID 316L STAINLESS STEEL SHAFT.

• Fully isolated from the process fluid for additional corrosion resistance.

REVERSIBLE LEVER HANDLE.

• High impact polypropylene, standard on 1.1/2" - 8" valves.
• Reversible 180⁰ for convenient operation on either side of the valve.
• Built in lockout provision for authorised use only.
• Positive lock stops for end of travel & 5 intermediate positions. Non slip positioning for repeatable flow control.

HIGH EFFICIENCY GEAR OPERATOR FOR 10" & LARGER VALVES.

• Weight saving cast aluminium housing.
• Polypropylene handwheel.
• Built in position indicator.
• Available for all sizes, standard on 10" & larger valves.

STANDARD VALVE FOR DEAD END SERVICE.

• Provision for field installable lug inserts.

PRESSURE RATED TO 150 PSI 73^OF, (10Bar 23^OC).

• ANSI/ASME B16.5 Class 150 bot pattern.
• Valves with EPDM seats & seals are NSF certified for potable water.

OPTIONAL ACCESSORIES.

• Stem extension kit.
• Gear operator kit for valves 1.1/2" - 8" diameter.
• T-Handle kit.
• Speed handle for gear operated valves.
• 2" Square/T-Style operator nut for gear operated valves.
• Chainwheel operator kit for gear operated valves.
• Positive stem stop for gear operated valves.
• Submersible gear operators.
• PTFE coated stem.
• PTFE seat sleeve.