ITT Diaphragm Valve
ITT Grinnell Diaphragm Valves
The history of ITT Diaphragm Valve begins with ITT Grinnell Valve company, originally Grinnell Valve Company, a manufacturer of valves for control of chemicals and products for fire protection services engineered a product line of Diaphragm Valves, Grinnell Corp fire products, now Simplex Grinnell products, like grooved couplings, fittings, and UL/FM valves. Grinnell Corp, the brand, manufactured Grinnell Bronze and Iron Valves, a complete range of bronze and iron valves: Angle, Ball, Butterfly, Check, Gate, Globe, and Needle, including a line of electric and air actuators to mount to the bonnet.
Later, a separate product line for commercial and UL FM ITT Grinnell Butterfly Valves was added, which are now manufactured by Emerson as the Series 60. These valves, like the ITT Diaphragm Valve, are ideally suited for HVAC, the heating ventilation and air conditioning sector, water treatment, process, and irrigation markets.
The Grinnell product line was purchased by ITT Engineered valves. ITT Diaphragm Valves can be found in process applications with different tags and markings as the same series of well-designed products under the product name Dia-Flo, ITT Grinnell Corp, ITT Engineered, Pure-Flo, and Grinnell Corp. 303 markings are found on all ITT Diaphragm Valves.
ITT Diaphragm Valve
ITT Diaphragm Valves offer bubble-tight shutoff, throttling, and streamlined flow available in many body materials. Cast Iron, bronze, stainless steel 316 and 316L, cast steel WCB, PVC, alloy 20, monel, ductile iron, CPVC, and Kynar, with optional lining materials of neoprene, glass, soft rubber, hard rubber, PVC, saran, polypropylene, tefzel, Hypalon, and butyl.
Body designs and configurations of end connections on both weir type and straight body styles are threaded, socket weld, flanged, buttweld, and screwed ends. Optional bonnets include indicating, non-indicating, travel stop, air actuated, air actuated with spring-return, chain wheel, and handwheel operated. These are marked with 303 part numbers to identify them as ITT Engineered Air Motors, Dia-Flo Diaphragm Valves, ITT Grinnell Valves, ITT Diaphragm Valves, ITT Engineered Valves, Advantage, Pure-Flo, Grinnell Valve, or Grinnell Air Motor.
The ITT Diaphragm Valve product is offered with a wide range of diaphragm materials to choose from, including diaphragms for air motors: natural rubber, butyl, buna-n, nitrile rubber, EPDM, Hypalon, Teflon backed EPDM, Teflon backed Viton, Teflon backed Hypalon, Viton, white butyl, PTFE and ethylene-propylene 325 for Weir Type and Straightway Diaphragm Valves. Air Motor Diaphragms are made of Buna, for ITT Grinnell Fail Open, Fail Closed, and Double Acting Actuators.
Performance Data is critical to the process engineer at a manufacturing site. Breakthrough technology in the ITT Pure Flo Envizion Valve and ITT Pure Flo Biovizion Valve Diaphragm components, offer process engineers ease of installation and maintenance, key factors when evaluation performance data. Product design and engineering is fundamental to process design. The product design and engineering require sophisticated tools and experienced engineers to evaluate performance data. Advancements in ITT computational power and design techniques have helped engineers to evaluate design performance quickly. The optimum ITT Pure Flo Envizion Valve and ITT Pure Flo Biovizion Valve Diaphragm design of valves provide individual process designers and teams the desired result when compared to legacy data. The ITT Pure Flo Envizion Valve and ITT Pure Flo Biovizion Valve stainless steel removable bonnet allows customers to replace diaphragms easily, saving time and money with a minimum of downtime. For improved functionality, replacement of components, inspection or replacement of block valves, request the ITT Installation, Operation, and Valve Maintenance Manual for ITT Pure Flo Envizion and ITT Pure Flo Biovizion Valves by requesting Form IOM.ENVBV.en-US.2020-04.
Process engineers and equipment managers rate ITT Pure Flo and ITT Dia Flo designs as “best rated” by customers responsible for site systems. ITT tank bottom diaphragm valves can be used as block valves for washdown media equipment, process fluids, molecule drugs equipment lines, process fabrications, manufacturing facilities process applications and critical installations where functionality and precision are of primary importance to the user experience. The ITT product design for both ITT Pure Flo and ITT Dia Flo design permits valve components to be dismantled quickly for maintenance or diaphragm removal and replacement. Customers user experience is our first priority at Authorized Parts, Inc.
ITT Diaphragm Valve Air Motor
ITT Engineered Weir Type and Straightway Diaphragm Valves with an Air Motor manufactured by ITT Grinnell include the 3100 Series Fail Open Actuators(Spring to Open – Air to Close), 3200 Series Fail Closed Actuators(Air to Open – Spring to Close), and 3300 Series Double Acting Air to Open – Air to Close Actuators. The Fail Open Actuators and Fail Closed Actuators have replaceable springs.
The Size Range for the pipeline size covers 1/2″ to 12″ with variable pressure ratings depending upon the specific application. All flange connections are ASME Class 125/150. The ITT Air Motor size numbers are sizes 12, 25, 50, 75, 101, 130, and 250, as (3100) Fail Open, (3200) Fail Closed, or (3300) Double Acting. For sizing recommendations to for the correct air motor and Actuator spring, send all relevant application data as an RFQ to:
ITT Diaphragm Valve Options and Accessories
ITT Grinnell Diaphragm Valves are available in a host of body materials and options for a host of industrial and pharmaceutical applications. Food Grade (FDA) applications have specific lining and coating requirements. Valve bodies might be bronze, stainless steel 316 and 316L, alloy 20, or monel, with electro-polished finishes or optional lining materials of neoprene, glass, soft rubber, hard rubber, PVC, saran, polypropylene, tefzel, Hypalon, PVDF, Kynar, and butyl.
Configurations of end connections on both weir type and straight body valves are threaded, socket weld, flanged, butt weld, spigot weld, Tri-clamp, and screwed ends.
Products can be equipped with accessories such as locking devices, valve positioners, wrench Operators, limit stops, and position indicators. Bonnet accessories include indicating, non-indicating, travel stop, actuated, extended stem, chain wheel operated, handwheel operated, and solenoid electric actuated.
ITT Diaphragm Valves and ITT Pure-Flo Valves can be coated for environmental conditions or pharmaceutical or Food Grade (FDA) processes. Kynar or PVDF Coated Body or Topworks, White Epoxy Coated Body or Topworks, with Bronze Compressor, Stainless Steel Compressor, PVDF Coated Cast Iron Compressor or Teflon Tube Nut Compressor.
ITT Diaphragm Valve Replacement Parts
The Bill of Materials for actuated Weir Type and Straightway Diaphragm Valves manufactured by ITT Engineered Valves can be found in the Technical Library of the Authorized Parts, Inc. website at:
The library includes a list of replacement part, part numbers for manually operated and pneumatically operated Dia-Flo and Pure-Flo valves. Replacement parts like air motor diaphragm, valve stem, EPDM or Buna O-Rings, Valve Body, Valve Block, Compressor, Diaphragm (Elastomer or PTFE), Thrust Washers, Tube Nut, Bearings, and Bolting can be found. Also, part number and descriptions for replacement diaphragm, types A Soft Natural Rubber (FDA), SA Soft Natural Rubber (FDA) straightway, B Black Butyl (FDA), SB Black Butyl (FDA) straightway, C Hypalon, E1 EPDM (FDA), M EPDM, SM EPDM straightway,
P BUNA N (FDA), S Natural Rubber, SS Natural Rubber straightway, T Neoprene, ST Neoprene straightway, WB White Butyl (FDA), DP BUNA N Direct Loaded (FDA), V Viton, R2 PTFE (FDA), and TM PTFE (FDA) in sizes 1/2″ thru 12”.
How to Order ITT Diaphragm Valves and Air Motors
ITT Engineered Air Motors, Dia-Flo Diaphragm Valves, ITT Grinnell Valves, ITT Diaphragm Valves, ITT Engineered Valves, Grinnell Valves, Pure-Flo Advantage, and Grinnell Air Motors. 303 Weir Type and Straightway Diaphragm Valves, or complete 303 valves with Air Motor can be quoted by RFQ or ordered online by the complete figure number, 303 Number, or by providing some or all the following information:
BONNET TYPE OR ACTUATOR TYPE
AIR MOTOR SPRING SIZE OR MODEL NUMBER
OPTIONAL AIR MOTOR ACCESSORIES (SOLENOID VALVE, LIMIT SWITCHES, POSITIONER, ETC.)
SPECIAL QUALITY DOCUMENTATION (SQD)
If a valve recommendation is preferred, send all relevant application data as an RFQ to:
How can I identify the Figure Number of an ITT Diaphragm Valve with a missing tag?
If no Figure Number is visible or the nameplate is missing, the valve body casting and air motor will be marked with the Grinnell name, Dia-Flo, Pure-Flo, Advantage, or ITT Engineered Valves 303 number and valve size. Determine if the valve is marked as lined. If there is an Air Motor, specify the corresponding size number: 12, 25, 50, 75, 101, 130, and 250 and whether the air motor is Fail Open, Fail Closed, or Double Acting. Along with the service media information, a replacement recommendation can be made.
Can ITT Diaphragm Valves, Dia-Flo Diaphragm Valve, ITT Grinnell Valve, ITT Diaphragm Valve, ITT Engineered Valve, Pure-Flo Valves, and Air Motors replace another make of valve, or be replaced by another make of valve?
Yes. Other manufacturer’s valves cross-reference to ITT Diaphragm Valves. Saunders, Dia-Flo, Pure-Flo, Dow, Resistoflex, Century, and Hills-McCanna are examples of manufacturers with equivalent products. However, not all design features are the same, so care should be taken when evaluating. Be especially careful when reviewing the face-to-face dimensions when making comparisons.
Are test reports available for ITT Diaphragm Valves?
Yes. All valve and air motor testing requirements can be made available. MTR’s, NDE, Pressure Testing, Radiography Testing, Magnetic Particle, Dye Penetrant, PMI, Positive Material Identification, Hardness Testing, Failure Analysis, spark testing, or electrostatic and hydro-testing per ASTM 1545. Note: The Pressure Rating of the valve is influenced by the diaphragm material. The hydrostatic test pressure must not exceed the maximum pressure rating of the diaphragm.