Van khí nén UPVC & CPVC (SPEARS)
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Spears offer to customers many types of thermoplastic pneumatic valves with valve body from PVC, CPVC, PP and Premium quality pneumatic actuators and accessories. Diversified pneumatic operations: Normal Close (Air to Spring Close), Normal Open (Air to Spring Open), Double Acting (Air to Air), all connection ends: Socket, Spigot, Threaded or Flange End for customers’ choice. These pneumatic thermoplastic valves will include of Pneumatic Ball Valves, Pneumatic Butterfly Valve, Pneumatic Diaphragm Valve, Three-way Pneumatic Ball Valve…
Pneumatic Actuated True Union Ball Valves
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The compact design of True Union 2000 Ball Valves provides maximum versatility with minimum space requirements. Fully serviceable valve cartridge also mates with Spears® Union 2000 Schedule 80 pipe unions. Both valves and unions utilize Buttress Thread union nuts for superior strength. All ball valves feature Spears® self adjusting Floating Seat design for extended service, and Spears® Safe-T-Shear® Stem with double O-ring stem seals for assurance of fluid containment in case of inadvertent valve damage. Available in chemical and corrosion resistant PVC or CPVC with socket, flanged or Spears® Patented Special Reinforced (SR) threaded. Actuated package includes polypropylene valve mounting bracket for accurate valve/actuator alignment and support in any position. Premium pneumatic actuator is an Air-to-Air (Double Acting; optional Spring Return) featuring twin piston rack and pinion operation with adjustable stops, and permanent lubrication. Manual override is standard. Housing is hard anodized aluminum with epoxy coated aluminum end caps. |
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True Union 2000 Ball Valve Specifications Style Double union • 1/4 turn shut off • Blocked seal carrier • Double O-ring stem seals • Safe-T-Shear® Stem Material PVC or CPVC Size Range 1/2" - 6" & 8" Venturied* Pressure Rating 1/2" - 4" = 235 psi @ 73°F 6" - 8" & all flanged valves = 150 psi @ 73°F Vacuum Service to 26 in-Hg Seats PTFE O-rings EPDM or FKM End Connector Socket, SR Threaded, or Flanged Certifications EPDM Valves NSF® Certified for potable water use. *8" Venturied is 6" valve fitted with 8 x 6 adapters
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Standard 2-Position Actuator Specifications Type Dual piston • rack & pinion • Adjustable stop Standard Operation Air-to-Air (double acting) Supply Pressure 80 psi Air Connection 1/4" - 1/8" Custom Pneumatic Actuation Options & Accessories • Spring Return Operation (Fail Safe) • 60 psi or 40 psi Operating Pressure • Declutchable Manual Override • Pneumatic & Electro Pneumatic Positioners • 3&4 Way Solenoid Valve 12VDC, 24VDC, 24VAC, 115VAC, 230VAC NEMA 4/4x&7/9 rating • Dual Power Solenoids • Output Signal Limit Switches • Standard Limit Switches • Dome Position Indicator • Stainless Steel Gauge Sets • Customized ID Tags
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Pneumatic Actuated Butterfly Valves
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Spears® innovative patented seat design departs from traditional liner-seat type valves to eliminate seat creep, reduce operating torque and provide positive seal off. Ideally suited for flow control or throttling, this high performance valve offers a full variety of options for greater application versatility. Fully isolated (Dry Stem), solid type 316 stainless steel stems with optional PTFE coated stems available for extra assurance. PVC and CPVC valves are available in Standard or True Lug style for sizes 1-1/2" through 14". Polypropylene valves are available in Standard valve style for sizes 1-1/2" through 24", plus sizes 30" through 60" produced to order. Premium pneumatic actuator is an Air-to-Air (Double Acting; optional Spring Return) featuring twin piston rack and pinion operation with adjustable stops, and permanent lubrication. Manual override is standard. Housing is hard anodized aluminum with epoxy coated aluminum end caps. |
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Butterfly Valve Specifications Style Flanged Material PVC, CPVC, PP Size Range PVC/CPVC = 1-1/2" - 12" PP = 1-1/2"- 24" (custom 30" - 60") Pressure Rating 1-1/2" - 12" =150 psi @ 73°F 14" = 100 psi @ 73°F 16" = 85 psi @ 73°F 18" = 70 psi @ 73°F 20" - 24" = 50 psi @ 73°F Seats & Seals Buna-N, EPDM or FKM on PVC/CPVC valves; EPDM or FKM on Polypropylene valves Bolt Pattern ANSI Class 125/150 Special Valve Options & Accessories • “True-Lug” style factory installed lugs (PVC & CPVC valves only) • PTFE coated stainless steel stem • Titanium & Hastaloy Stems • PTFE encased valve seat • Field installable Lug Insert sets for PVC/CPVC valves through 12" • Stem Extensions • Seat & Seal Replacement Kits • 30" - 60" Polypropylene valves (contact Spears® for details)
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Standard 2-Position Actuator Specifications Type Dual piston • rack & pinion • adjustable stop Standard Operation Air-to-Air (double acting) Supply Pressure 80 psi Air Connection 1/4" - 1/8" Depends on Actuator Note:Contact Spears® for information on valve sizes 14" and larger Custom Pneumatic Actuation Options & Accessories • Spring Return Operation (Fail Safe) • 60 psi or 40 psi Operating Pressure • Declutchable Manual Override • Pneumatic & Electro Pneumatic Positioners • 3 & 4 Way Solenoid Valves 12VDC, 24 VDC, 24VAC, 115VAC, 230VAC NEMA 4/4x & 4.4x.7/9 rating • Dual Power Solenoids • Output Signal Limit Switches • Standard Limit Switches • Dome Position Indicator • Stainless Steel Gauge Sets • Customized ID Tags
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Spears Actuated Diaphragm Valves
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Spears actuated diaphragm valves are industrial grade Weir-type design, excellent for throttling and use with viscous fluids or slurries.
Compact, Light Weight Design True Union Socket/Thread, SR Thread, or Spigot End Connections - sizes 1/2"-2" Pressure Rated to 235 psi @ 73°F (23°C), Flanged Ends (& PTFE diaphragms) - sizes 1/2" - 2" Pressure Rated to 150 psi @ 73°F (23°C) Corrosion Resistant Plastic Housing Stainless Steel Hardware 90 psi Operating Pressure Linear Action Operation with Preset Stops Air-Air, Air-Spring Closed, or Optional Air-Spring Open NOTE:“Socket” valves include standard plastic thread end connectors. |
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Diaphragm Valve Specifications Style Diaphragm • Weir type • fully repairable Material PVC, CPVC, PP Size Range 1/2" - 2" Pressure Rating PVC & CPVC 1/2" - 2" = 235 psi @ 73°F Flanged and PTFE Diaphragm 1/2"- 2" = 150 psi @ 73°F PP: 1/2"- 2" = 150 psi @ 73°F Diaphragm EPDM, FKM, or elastomer backed PTFE End Connector PVC & CPVC = True Union socket/threaded/SR threaded, or Spigot Body (1/2" - 2") Flanged Body (1/2" - 2") PP: True Union SR threaded (1/2" - 2")
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Standard 2-Position Actuator Specifications Valve Sizes 1/2" -2" Type Linear action Standard Operation Air-to-Air (double acting), Air-to-Spring Closed or Air-to-Spring Open Supply Pressure 90 psi Air Connection 1/8" Body Polypropylene Visual Position Indicator Special Valve Options & Accessories • Diaphragm & O-ring Replacement Kits • Hypalon® (CSM) Diaphragms • EPDM backed PTFE Diaphragms • FKM backed PTFE Diaphragms Custom Pneumatic Actuation Options & Accessories • Pneumatic & Electro Pneumatic Positioners • 3 & 4 Way Solenoid Valves • Customized ID Tags
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Spears Premium Actuated Diaphragm Valves
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This full-featured industrial grade valve is engineered to provide accurate throttling and shut off for chemical processing, industrial, and water treatment applications. Weir type design eliminates entrapped fluids in valve. Excellent for handling of liquids with suspended solids, viscous materials and slurries. Premium pneumatic actuators are Air-to-Air (double acting) or Air-to-Spring Closed (optional spring open) Actuator for 1/2" - 2" valves features a packless/glandless linear piston design and one-piece actuator/bonnet constructed from high integrity PES (Polyethersulphone), chemically resistant to virtually all acids, caustics, and solvents. Actuator for 2-1/2" - 4" valves features a linear diaphragm design and chemical resistant Polyester coated housing. |
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Diaphragm Valve Specifications Style Diaphragm • Weir type • fully repairable Material PVC, CPVC, PP Size Range 1/2" - 6" Pressure Rating PVC & CPVC 1/2" - 2" = 235 psi @ 73°F 1/2" - 4" Flanged =150 psi @ 73°F 6" = 100 psi @ 73°F 8" = 75 psi @ 73°F PP: 1/2" - 4" = 150 psi @ 73°F 6" = 100 psi @ 73°F 8" = 75 psi @ 73°F With PTFE Diaphragm 1/2"- 4" = 150 psi @ 73°F Diaphragm EPDM, FKM, or elastomer backed PTFE End Connector PVC & CPVC = True Union socket/threaded, or Spigot Body (1/2" - 2") Flanged Body (1/2" - 6") PP: True Union threaded (1/2" - 2"), Flanged Body (2-1/2" - 6")
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Standard 2-Position Actuator Specifications Valve Sizes 1/2" -2": Type Linear action Standard Operation Air-to-Air (double acting) or Air-to-Spring Closed (optional spring open) Supply Pressure 80 psi Air Connection 1/8" Body PES (Polyethersulphone) Valve Sizes 2-1/2" - 4": Type Linear action Standard Operation Air-to-Spring and Air to Air Standard Operating Pressure 80 psi Air Connection 1/4" (3" & 4" valves) Body Polyester coated Special Valve Options & Accessories • Diaphragm & O-ring Replacement Kits • Hypalon® (CSM) Diaphragms • EPDM backed PTFE Diaphragms • FKM backed PTFE Diaphragms Custom Pneumatic Actuation Options & Accessories • Spring Return Operation (Fail Safe) • Visual Position Indicator • Pneumatic & Electro Pneumatic Positioners • 3 & 4 Way Solenoid Valves • Micro Limit Switches • Custom ID Tags
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Thông số kỹ thuật
All pneumatically actuated Butterfly valves shall be constructed from PVC Type I Cell Classification 12454 or CPVC Type IV Cell Classification 23447 or UV stabilized Polypropylene. All valve seats and O-rings shall be Buna-N, EPDM or FKM. Seat shall be a nonlinear type interlocked to valve body. Bolt hole pattern shall conform to ANSI/ASME B16.5 CL 125/150. Disc shall be offset design with Type 316 stainless steel stem and hardware. Valves shall be pressure rated at [select from specifications] for water at 73°F. Pneumatic Actuators shall be factory installed, dual piston, and rack & pinion design with adjustable stops. Operation shall be Air-to-Air (double acting) for 80 psi supply pressure. Actuator shall be equipped with [selected options list], as manufactured by Spears® Manufacturing Company.
All ball valves shall be pneumatically actuated True Union 2000 type constructed from PVC Type I Cell Classification 12454 or CPVC Type IV Cell Classification 23447. All O-rings shall be EPDM or FKM. All valves shall have Safe-T-Shear® stem and double O-ring stem seals. All valve union nuts shall have Buttress threads. All seal carriers shall be Safe-T-Blocked®. All valve components shall be replaceable. All EPDM valves shall be certified by NSF International for use in potable water service. All 1/2" through 4" valves shall be pressure rated at 235 psi and all 6" through 8" and all flanged valves shall be pressure rated at 150 psi for water at 73°F. Pneumatic Actuators shall be factory installed, dual piston, rack & pinion design with adjustable stops. Operation shall be Air-to-Air (double acting) for 80 psi supply pressure. All mounting fasteners shall be stainless steel. Actuator shall be equipped with [selected options list], as manufactured by Spears® Manufacturing Company.
All pneumatically actuated diaphragm valves shall be True Union Socket/Thread or Flanged or Spigot type constructed from PVC Type I Cell Classification 12454 or CPVC Type IV Cell Classification 23447 or UV Stabilized PP. All valve diaphragms shall be EPDM, FKM or Hypalon® or elastomer backed PTFE. All True Union valve union nuts shall have Buttress threads. All valve components shall be replaceable. All 1/2" through 2" valves shall be pressure rated to 235 psi, 1/2" - 2" flanged valves and 1/2" - 2" PTFE diaphragm valves to 150 psi. Pneumatic Actuators shall be factory installed, linear type with preset stops. Operation shall be Air-to-Air (double acting), Air-to-Spring Closed or Air-to-Spring Open for 90 psi supply pressure range as selected. Actuator shall be equipped with [selected options list], as manufactured by Spears® Manufacturing Company.
