Industrial Valves #677759

Pressure reducing & surge control valve automatically reduces a higher inlet pressure to a steady lower downstream pressure regardless of flow rate and inlet pressure fluctuations. Pilot valve enables the main valve to close quickly to prevent downstream surges.

• 201-02 pressure sustaining/differential pressure/check
• 202-pressure sustaining solenoid on/off valve
• 203-surge anticipator relief/remote sense
• Adjustment range : 0-150 psig

• Pressure Class :150 & 300 #
• Temperature Range :-40 to 90 deg.C.
• Media :Any Liquid Services

Pressure reducing & surge control valve automatically reduces a higher inlet pressure to a steady lower downstream pressure regardless of flow rate and inlet pressure fluctuations. Pilot valve enables the main valve to close quickly to prevent downstream surges.

• Pressure Class :150 & 300 #
• Temperature Range :-40 to 90 deg.C.
• Media :Any Liquid Services
• Material :Body & Cover : ASTMA 216 Gr. WCB & Alloy Steel
• Max. Inlet Pressure :300 PSIG
• Max. Outlet Pressure :0 to 150 PSIG

The Series 300 & 400 consists of the particular range of pressure reducing valve. The valve's name itself narrates function. The valve automatically reduces a higher inlet pressure to a steady outlet pressure to a steady lower downstream pressure regardless of changing flow parameter and fluctuations in upstream. A solenoid valve is provided to intercept the operation of the pressure reducing control.

Specifications

• Pressure Class :150 & 300 #
• Temperature Range :-40 to 90 deg.C.
• Media :Any Liquid Services
• Material :Body & Cover : ASTMA 216 Gr. WCB & Alloy SteelG

The 600 series solenoid control valve is classified in two categories (1) Globe and (2) Angle type. The valve is a self-contained unit consists of a diaphragm operated main valve with two solenoid pilot valves. The first (globe) will permit main valve to open when de-energized. The solenoid pilot valve may be activated by pressure, temperature, clock, and float. Etc. other features are available on custom basis.

• 601-Solenoid on/off
• 602-High Capacity
• 603-Booster Pump Control
• 604-High capacity with control
• Max. Range : 0-300 psig

• Pressure Ratings :Class: 150-300 #
• Standard Materials :150-400 mm, ASTMA 216 Gr. WCB & Alloy Steel
• Temperature Range :-40 to 90 deg.C.
• Media :Any Liquid Services

The 700 series Non-slam check valves are diaphragm actuated. The higher downstream pressure enters the valve cover thru a control tube and the valve closes.

Additional Relief/Sustaining Function-200

• 701R-No speed control
• 701-01R-No closing speed
• 701-02R-Opening speed
• 701-03R-Separate adjustable opening and closing speed (4" & smallest)
• 701R-Separated opening and closing speed (6" & large)

Specifications

• Pressure Ratings :Class:150-300 #
• Standard Materials :Stainless Steel
• Size :150-400 mm
• Temperature Range :-40 to 90 deg.C.
• Main valve Body & Cover :ASTMA 216 Gr. WCB & Alloy Steel
• Media :Any Liquid Services

The 1000 series valves consists of booster pump control valve. The valve opens at controlled rate of flow which is adjustable and closes same way at desired flow limits. The valve and pump are electrically interlocked to complete the desired action.

• Voltages :24, 48, 115, 230, 460, -60 cycle AC 6, 12, 24, 115, 230-DC.
• Pressure Ratings :Class : 150-300 #
• Temperature Ranges :-40 to 90 deg. C.
• Standard Materials & Stainless Steel
• Size :150-400 mm
• Media :Any Liquid Services
• Material :Body & Cover High Tensile ASTMA 216 Gr. WCB &

The model PRV 400 is Nutech's primary general service, self-contained, pressure, reducing, regulator. Unit handles inlet pressure up to 400 psig (27.6 barg) and outlet pressures from 2-250 psig (O.14-17.2 barg) in multiple spring ranges. Model PRV 400 is utilized for the majority of industrial pressure reducing applications.

Reduced pressure Inlet Pressure Allowable change in reduced pressure from maximum to minimum flow, psi maximum required flow Subtract the reduced pressure from the inlet pressure

Inlet pressure acta upward on small balancing diaphragm (or piston in 21/2-3" sizes) to equalize downward pressure on valve disc, providing fully balanced action. Inlet pressure variations are equalized without affecting set-point. When the adjusting spring is compressed, it opens the main valve to admit fluid to down stream side. When the downstream pressure under the large diaphragm equals the force exerted by the adjusting spring, equilibrium is restored and the main valve maintains flow of the set down stream pressure. Simply designed, your Nu-Tech hi-flow is slated for a long, trouble-free life. Standard renewable parts never need special fitting or machining. Here's a rugged regulator built to absorb hydraulic system shocks that upset ordinary valves.

• Single Seated :Closing with inlet pressure for positive, dead-end, shut-off
• Accuracy of Regulation :Comparable to instrument control with full flow for equivalent pipe
• New type piston with Teflon+Seal :For temperature up to 500 F. Give continuous wiping action keeping liner clean, improving operating reliability and reducing maintenance. Piston rings can be furnished for temperatures over 500 F.
• Fully Guided main valve: Prevents rubbing or binding of internal parts
• Gradual opening ported main valve :In sizes 2 1/2" and larger for improved throttling control under low flow conditions.
• Sensitive stainless steel diaphragm :Responds instantly to any flow change and eliminates stuffing boxes and bellows seals. Full travel less than its own thickness stress to a minimum.
• Renewable Interchangeable parts :Machined to close tolerance; complete overhaul without machining or removing valve body from the line.

Technical Specification

• Double Acting Vent Damper : Assure fast response plus stable operation.
• Internal Control Tube : Engineered for accurate pressure
• Removable orifice : Precision knife-edge plus molded soft seats assure positive tight shutoff orifice in 3/4", 1" and 1 1/4"

NU-TECHcast steel valves are designed and manufactured to provide maximum service life and dependability. All gate valves are full ported and meet the design requirements of American Petroleum Institute standard API600 & API 6D. British standard BS1414 BS EN 1984 and generally, Conform to American Society of Mechanical Engineers standard ASME B1634. Valves are available in a complete range of body/bonnet materials and trims.

• Trim Changes
• End Connection Modifications
• Packing and Gasket Change
• Operator Mounting
• Handwheel Extensions
• Pressure Equalizing
• By-Pass
• Customer Specified Coatings
• Weld End Bore Changes
• Oxygen & Chlorine Clearing &
• Packaging

Large hand wheels for easy operation. Also available with gearing motor actuators, pneumatic or hydraulic actuators for more difficult services

In services requiring frequent cycling or with high pressure/temperature variations, live loading extends the service life between maintenance periods by requiring less stments. BelieviU.e springs are employed to provide constant packing gland stress

Integral guide rib faces assure self-centering of wedge. flexible wedge gate valve has a one piece. twin-disc wedge, which is designed so that each half flexes independently. Available in solid flex split and his designs.

Outside screw and yoke. Cast steel gate valve yoke integral with bonnet for 150 Lb-B" 600 Lb-6" 900 Lb-4" & small Bolted bonnet, Welding bonnet and pressure seal bonnet in services requiring frequent cycling or with high pressure/tempareture variations.

Standard body/bonnet materials include nine grades of carbon, low alloy & stainless steels. For special applications they can be supplied in other grades of alloy & stainless steel. Threre's a full range of trim materials to match any service optional packing & gasket materials are available for a full range of service conditions.

A choice of flanged, RTJ flanged or butt welding end for piping flexibility.

Lantern ring leak-off fitting connection & double packing stack is optionally available for critical services.

Extra long thread engagement between yoke sleeve and stem provide long thread life. Valves of sizes Larger than 150 Lb-12", 300 Lb-10", 600 Lb-6", 900 Lb / 1500 Lb / 4" are regularly provided with roll bearing yokes.

All wedge gate valves are provided with upset forged 1-head stems by forging the T-head. The stem at the stem-wedge connection is strengthened. This design also allows the wedge possibility of a bent stem jamming the wedge

.

A flat face gasket joint is used in the 150lb valves. A male and female joint is used in 300Lb to 600Lb valves. Ring joint is 900Lb & higher rated valves.

Design

NU-TECHcast steel valves are designed and manufactured to provide maximum service life and dependability. ALL check valves meet the design requirements of American Petroleum Institute standard API600 & API 6D. BS EN 13709 and generally, Conform to American Society of Mechanical Engineers standard ASME B16.34. VaLves are available in a compLete range of body/bonnet materials and trims.

Available Modifications Fon "NU-Tech Cast Steel Valves

• Trim Changes
• End Connection Modifications
• Packing and Gasket Change
• Operator Mounting
• Handwheel Extensions
• Pressure Equalizing
• Customer Specified Coatings
• Weld End Bore Changes
• Oxygen & Chlorine Clearing & Packaging

Eyebolt

For 150Lb-8', 300Lb-8" 600Lb-6" 900Lb-1500Lb/2500Lb-4"& over. Bolted cover.

BC

Welded cover & Pressure seal bonnet in services requiring frequent cycling or with high pressure/term perature variations.

End Connection

A choice of flanged, WO flanged or butt welding end for piping flexibiLity.

Body to Cover Joint

A male & female joint or tongue and groove joint is used 150Lb to 600Lb valves. Ring joint is used in the body to cover connection in 900Lb & higher rated valves.

Range Of Materials

Standard body/bonnet materials include nine grades of carbon, low alloy & stainless steels. For special applications they can be supplied in other grades of alloy & stainless steeL Threre's a full range of trim materials to match any service optional packing S, gasket materiaLs are available for a fulL range of service conditions.

Outside Lever B Weigh

All external hinge pin swing check valves 12" & smaller are available with an optional outside lever and weight, internal hinge available with all swing check valves.

Seat Rign

Separate heavy duty fulL ported rings for easy maintenance, Screwed or welded connection into body.

Hcu Weighted Mechanical Accumulator

This design can be used to either dampen or assist closing of the check valve disc depending on orientation. by using the hydraulic controL unit to buffer action the disc, the vaLve opens at lower flow rates.

Appiicarit Standards

• Steel Check Valves API 6D
• Steel Check Valves ISO 14313
• Steel Valves ASME 81634
• Face To Face ASME B16.10
• End Flanges ASME B16.5
• Butt Welding Ends ASME B16.25
• Inspection and Test API 598/API 6D

Design Descriptions

• Bc, Bolted Cover
• Swing Type, Anti-rotation Disc
• Renewable Seat Rings
• Non-penetrate Disc Shaft
• Horizontal Or Vertical Service
• Flanged Or Butt Welding Ends

Materials Of Parts

Dimensional Datas Of Ansi Class 150 LB

Dimensional Datas Of Ansi Class 300 LB

• Steel Check Valves API 6D
• Steel Check Valves ISO 14313
• Steel Valves ASME B16.34
• Face To Face ASME B16.10
• End Ranges ASME B16.5
• Butt Welding Ends ASME B16.25
• Inspection and Test API 598/API 6D

• BC, Bolted Cover
• Swing Type, Anti-rotation Disc
• Renewable Seat Rings
• Non-penetrate Disc Shaft
• Horizontal Or Vertical Service
• Ranged Or Butt Welding Ends

• Steel Check Valves API 594/API 6D
• Steel Check Valves ISO 14313
• Steel Valves ASME B16.34
• Face To Face ASME B16.10
• End Flanges ASME B16.5
• Butt Welding Ends ASME B16.25
• Inspection and Test API 598/API 6D

• One Piece Body
• Renewable Split Disc
• Horizontal Or Vertical Service
• Wafer Ends
• Available With Flanged Ends

• Steel Check Valves API 594/API 6D
• Steel Check Valves ISO 14313
• Steel Valves ASME B16.34
• IN Face To Face ASME B16.10
• End Flanges ASME B16.5
• ButtWelding Ends ASME B16.25
• Inspection and Test API 598/API 6D

• One Piece Body
• Butterfly Swing Type
• Dual-plate Disc, Long-pattern
• Renewable Split Disc
• Horizontal Or Vertical Service
• Wafer Ends
• Available With Flanged Ends

NU-TECHcast steel globe valves are designed and manufactured to provide maximum service life and dependability. All gate valves are full ported and meet the design requirements of American Petroleum Institute standard API600 & 6D BS EN 13709 and generally, Conform to American Society of Mechanical Engineers standard ASME B1634. Valves are available in a complete range of body/bonnet materials and trims.

• Trim Changes
• End Connection Modifications
• Packing and Gasket Change
• Operator Mounting
• Handwheel Extensions
• Pressure Equalizing
• By-Pass
• Customer Specified Coatings
• Weld End Bore Changes
• Oxygen & Chlorine Clearing & Packaging

Large hand wheels for easy operation. also available with gearing motor actuators, pneumatic or hydraulic actuators for more difficult services.

In services requiring frequent cycling or with high pressure/temperature variations, live loading extends the service life between maintenance periods by requiring less statements. Belleville springs are employed to provide constant packing gland stress.

Furnished in aluminum bronze to reduce operating torque. Most size furnished with ball bearing yoke sleeves.

Lantern ring leak-off frtting connection & double packing stack is optionally available for critical services.

Separate heavy duty, full ported rings for easy maintenance. Screwed or welded connection into body.

Standard body/bonnet materials include nine grades of carbon, low alloy & stainless steels. For special applications they can be supplied in other grades of alloy& stainless steeL Threre's a full range of trim materials to match any service optional packing & gasket materials are available for a full range of service conditions.

Outside screw and yoke. Cast steel gate valve yoke integral with bonnet for 1O& smalL

Bolted bonnet Welding bonnet and pressure seal bonnet in services requiring frequent cycling or with high pressure/tempareture variations.

A choice of flanged, RTJ flanged or butt welding end for piping flexibility.

A flat face gasket joint is used in the 150lb to 600Lb valves. Ring joint is used in the body to bennet connection in 900lb & higher rated valves.

All Plug disc is stem guided on all size. Disc has a differential angle front the seat to provide a line contact for maximum sealing. The bottom of V-port disc is feuded by the body seat ring for maximum disc stability in throttling applications. the soft teflon ring is excellent for lower temperature service where tight shut off required.

• Automatic Control Valve
• Pressure Reducing valve
• Safety Relief Valve
• Adjustable Choke Valve
• Control Valve

• Ball Valve
• Gate Valve
• Check Valve
• Wafer Check Valve
• Globe Valve
• Gate Valve
• Butterfly Valve

AUTOMATION VALVE

• Automatic Control Valve
• Pressure Reducing valve
• Safety Relief Valve
• Adjustable Choke Valve
• Control Valve

INDUSTRIAL VALVE

• Ball Valve
• Gate Valve
• Check Valve
• Wafer Check Valve
• Globe Valve
• Gate Valve
• Butterfly Valve