Modular Type ilter Regulator with uilt-in Pressure auge eries W ilter Regulator with uilt-in Pressure auge eries W ominal filtration rating ccessory W2 /8, /4 W3 /4, 3/8 W /4, 3/8, /2 racket Pages 424 to 427 ilter Regulator with uilt-in Pressure auge with ackflow unction eries W W2 /8, /4 5 μm loat type auto drain et nut for changing the mounting angle of pressure gauges W3 /4, 3/8 W /4, 3/8, /2 Pages 428 to 432 R L W V 8 9 ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com 423
ilter Regulator with uilt-in Pressure auge eries W2/3/ W 3 2 3 ody size /8 3/8 /2 Thread type Type Rc () PT (2) ote ) rain guide: PT /8 (W2()), PT /4 (W3() to W6()); uto drain port: With ø3/8" Onetouch fitting (W3() to W6()) ote 2) rain guide: /8 (W2()), /4 (W3() to W6()) 2 3 4 Port size /8 /4 3/8 /2 2 ody size 3 I 3 ccessory () ow to Order ccessory (2) Option (3) 2 6 8 W escription With set nuts escription With bracket (With set nuts) loat type auto drain (ormally closed) loat type auto drain (ormally open) Z Mounting ngle of Pressure auge Mounting angle 2 9 (4) Made to Order (Refer to page 433 for details.) X6 W2 to W2 to W2 to W3, When more than one specification is required, indicate in ascending alphanumeric order. 3 8 W2 4 27 W pecifications etting and pressure gauge full span.4 escription.2 to setting ylon bowl with level gauge With bowl guard on-relieving rain cock with barb fitting: ø6 x ø4 nylon tubing W2 to W2 to W2 to W3, W2 W2 to W2 to W3, (5) ame plate, caution plate for bowl, and pressure gauge in imperial units (psi, ) W2 to When more than one specification is required, indicate in ascending alphanumeric order. ote 3) djusting spring and pressure gauge (full-span.3 ) are different from those for the standard specification. ll products can be set at or more. ote 4) Without a valve function. ote 5) or thread type PT. This product is for overseas use only according to the new Measurement Law. (The I unit type is provided for use in apan.) Mounting angle view PU to L O PU to L O PU to L O PU to L O ccessory/optional ombinations ccessory/optional specifications ccessory Option 424 ombination With bracket loat type auto drain (ormally closed) loat type auto drain (ormally open) With set nut.2 to setting ylon bowl with level gauge With bowl guard rain guide on-relieving type rain cock with barb fitting ame plate, caution plate for bowl, and pressure gauge in imperial units (psi, ) - -2-6 -8 - - - -W -Z Possible to change to the optional mounting angles. or details, refer to page 434, Procedure for replacing or changing the mounting angle of a previous gauge. : ombination available : Varies depending on a model : ombination not available : vailable only with PT thread ccessory Option pplicable filter regulator 2 6 8 W Z W2 W3/ ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com
ilter Regulator with uilt-in Pressure auge eries W2/3/ tandard pecifications luid Proof pressure Maximum operating pressure Regulating pressure range Relief pressure mbient and fluid temperature ominal filtration rating rain capacity (cm 3 ) owl material owl guard onstruction Mass (kg) W2 /8, /4 W3 /4, 3/8 W /4, 3/8, /2 ir.5..5 to.85 et pressure +.5 (at relief flow rate of. l/min (R)) 5 to 6 (With no freezing) 5 μm 8 25 45 Polycarbonate Optional tandard Relieving type.38.5.86 ccessory Part o. ccessory racket assembly () et nut Pressure gauge Pressure gauge display range loat type auto drain (2) tandard Optional to. to.3 to 5 psi to 45 psi ormally open ormally closed W2 R2P-27 R2P-26 2-2-3 2-P 2-P3 27 W3 R3P-27 R3P-26 3-3-3 3-P 3-P3 38 37 W RP-27 RP-26 4-4-3 4-P 4-P3 48 47 ote ) ssembly includes a bracket and set nuts. ote 2) Minimum operating pressure:.o. type. ;.. type. (27) and.5 (37/47). ontact M regarding the specifications for psi unit and. low haracteristics (Representative Values) ondition: Inlet pressure.7 W2 Rc/4 W3 Rc3/8 W Rc/2.6.6.6.5.4.3.5.4.3.5.4.3... 2 6 8 low rate (l/min (R)) Pressure haracteristics (Representative Values) 5 5 low rate (l/min (R)) W2 W3 W 5.5.3.4.5.6.7.8.9 Inlet pressure () 5.5.3.4.5.6.7.8.9 Inlet pressure () 5.5 2 3 low rate (l/min (R)) onditions: Inlet pressure.7, Outlet pressure, low rate 2 l/min (R) et point et point et point.3.4.5.6.7.8.9 Inlet pressure () ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com 425 R L W V 8 9
eries W2/3/ onstruction W2 W3/ PU to L O P U to L O -! o e w y q -! -! o e w y q -! u r t i u r t i omponent Parts o. 2 3 escription Material W2 W3 W ody Z onnet andle PT POM ote Platinum silver lack lack Replacement Parts o. 4 5 6 7 8 9 escription Valve assembly ilter element iaphragm assembly owl O-ring owl assembly () Pressure gauge (3) Pressure gauge cover lip Material rass, R on-woven fabric Weatherability R R P P tainless steel Qty. W2 W2P-3 2P-6 R2P-5 2P-26 2 2- R2P- R2P-42 Part no. W3 W3P-3 3P-6 R3P-5 3P-26 3 (2) 3- R3P- R3P-42 ote ) Including O-ring. ontact M regarding the bowl assembly supply for psi and unit specifications. ote 2) owl assembly for W3/ includes a bowl guard (steel band material). ote 3) Only the standard part numbers are listed in the pressure gauges. or the optional part numbers, refer to page 425. W WP-3 P-6 RP-5 4P-26 4 (2) 4- RP- RP-42 election Warning. Residual pressure release (outlet pressure release) is not completed by releasing inlet pressure. To release residual pressure, use a filter regulator with a back flow mechanism. Maintenance Warning. Replace the element every 2 years or when the pressure drop becomes., whichever comes first, to prevent damage to the element. pecific Product Precautions e sure to read before handling. Refer to front matters 42 and 43 for afety Instructions and pages 287 to 29 for.r.l. Precautions. 426 Warning. et the regulator while checking the displayed values of the inlet and outlet pressure gauges. Turning the handle excessively can cause damage to the internal parts. 2. o not use tools on the pressure regulator handle as this may cause damage. It must be operated manually. aution. e sure to unlock the handle before adjusting the pressure and lock it after setting the pressure. ailure to follow this procedure can cause damage to the handle and the outlet pressure may fluctuate. Mounting and djustment Pull the pressure regulator handle to unlock. (You can visually verify this with the orange mark that appears in the gap.) Push the pressure regulator handle to lock. When the handle is not easily locked, turn it left and right a little and then push it (when the handle is locked, the orange mark will disappear). Orange mark ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com
O ilter Regulator with uilt-in Pressure auge eries W2/3/ imensions W2 P Q øt R racket Panel fitting dimension U øv øt W3/ P øw V øu et nut M Plate thickness W2: Max. 3.5 2 x P () O rain E Min. clearance for maintenance O Q øt R racket Panel fitting dimension et nut M Plate thickness W3/: Max. 3.5 2 x P () rain E Min. clearance for maintenance ccessory/optional specifications With auto drain (..) W2 With auto drain (.O./..) W3/ with level gauge rain cock with barb fitting imensions W2 W3 W O P M5 x.8 /8, /4 /4, 3/8 /4, 3/8, /2 53 7 ote) 79 223.5 26.5 tandard specifications 9 8.5 4.5.O.: lack..: ray /8 ø One-touch /4 Width across flats 4 fitting Width across flats 7 52 59 75 E 45 58 7 47 59 7 M39 x.5 M5 x.5 M55 x.5 55 8 35 45 5 48 58.5 65.5 ccessory specifications racket mount M P 65 5.4.4 7 6.5.5 77 8.5 2.5 ccessory specifications Optional specifications Panel mount With auto drain With barb fitting with level gauge W2 W3 W 43 5 56 U 39.5 5.5 55.5 V 9.5 25 27.5 W 6 7 7 T 52.5 65 7 96 264.5 3.5 ote) 23.5 269.5 ote) 83 23.5 268.5 ote) 79 256.5 274.5 ote) 276.5 294.5 ote) ull length dimension is measured when the handle is unlocked. Q 65 75 85 arb fitting pplicable tubing: T64 ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com R 2.3 2.3 2.3 427 R L W V 8 9
ilter Regulator with uilt-in Pressure auge with ackflow unction eries W2/3/ W 3 2 3 ody size /8 3/8 /2 With backflow function Thread type Type Rc () PT (2) ote ) rain guide: PT /8 (W2()), PT /4 (W3() to W6()); uto drain port: With ø3/8" Onetouch fitting (W3() to W6()) ote 2) rain guide: /8 (W2()), /4 (W3() to W6()) 3 ow to Order Option (3) 2 6 8 (4) W Z ccessory (2) escription.2 to setting ylon bowl with level gauge With bowl guard on-relieving rain cock with barb fitting: ø6 x ø4 nylon tubing W2 W W2 to W2 to W2 to W3, W2 W2 to W2 to W3, (5) ame plate, caution plate for bowl, and pressure gauge in imperial units (psi, ) W2 to When more than one specification is required, indicate in ascending alphanumeric order. ote 3) djusting spring and pressure gauge (full-span.3 ) are different from those for the standard specification. ll products can be set at or more. ote 4) Without a valve function. ote 5) or thread type PT. This product is for overseas use only according to the new Measurement Law. (The I unit type is provided for use in apan.) escription With set nuts Made to Order (Refer to page 433 for details.) X6 pecifications etting and pressure gauge full span.4 W2 to 2 3 4 Port size /8 /4 3/8 /2 2 ody size 3 ccessory () escription With bracket (With set nuts) loat type auto drain (ormally closed) loat type auto drain (ormally open) When more than one specification is required, indicate in ascending alphanumeric order. Mounting ngle of Pressure auge W2 to W2 to W3, 2 3 4 Mounting angle 9 8 27 I Mounting angle view PU to L O PU to L O PU to L O PU to L O pplication example of a filter regulator with a backflow function When the air supply is cut off and releasing the inlet pressure to the atmosphere, the residual pressure release of the outlet side can be ensured for a safety purpose. 428 ilter regulator with back flow mechanism Possible to change to the optional mounting angles. or details, refer to page 434, Procedure for replacing or changing the mounting angle of a pressure gauge. ccessory/ Optional ombinations ombination ccessory/optional specifications With bracket loat type auto drain (..) loat type auto drain (.O.) With set nut.2 to setting ylon bowl with level gauge With bowl guard on-relieving type rain cock with barb fitting ame plate, caution plate for bowl, and pressure gauge in imperial units (psi, ) ccessory Option - -2-6 -8 - - - -W -Z : ombination available : Varies depending on a model : ombination not available : vailable only with PT thread ccessory Option pplicable filter regulator 2 6 8 W Z W2 W3/ ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com
ilter Regulator with uilt-in Pressure auge with ackflow unction eries W2/3/ tandard pecifications s luid Proof pressure Maximum operating pressure () Regulating pressure range Relief pressure mbient and fluid temperature ominal filtration rating rain capacity (cm 3 ) owl material owl guard onstruction Mass (kg) ote ) et the inlet pressure so it should be.5 or higher than the set pressure. W2 /8, /4 W3 /4, 3/8 W /4, 3/8, /2 ir.5..5 to.85 et pressure +.5 (at relief flow rate of. l/min (R)) 5 to 6 (With no freezing) 5 μm 8 25 45 Polycarbonate Optional Relieving type.38.5 tandard.86 ccessory Part o. ccessory racket assembly () et nut Pressure gauge Pressure gauge display range loat type auto drain (2) tandard Optional to. to.3 to 5 psi to 45 psi ormally open ormally closed W2 R2P-27 R2P-26 2-2-3 2-P 2-P3 27 W3 R3P-27 R3P-26 3-3-3 3-P 3-P3 38 37 W RP-27 RP-26 4-4-3 4-P 4-P3 48 47 ote ) ssembly includes a bracket and set nuts. ote 2) Minimum operating pressure:.o. type. ;.. type. (27) and.5 (37/47). ontact M regarding the specifications for psi unit and. low haracteristics (Representative Values) W2 Rc/4 W3 Rc3/8 W.6.6.6 ondition: Inlet pressure.7 Rc/2.5.4.3.5.4.3.5.4.3... W2 W3 W 5.5 2 6 8 low rate (l/min (R)) Pressure haracteristics (Representative Values) et point.3.4.5.6.7.8.9 Inlet pressure () 5.5 5 5 low rate (l/min (R)) et point.3.4.5.6.7.8.9 Inlet pressure () 5.5 2 3 low rate (l/min (R)) onditions: Inlet pressure.7, Outlet pressure, low rate 2 l/min (R) et point.3.4.5.6.7.8.9 Inlet pressure () ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com 429 R L W V 8 9
eries W2/3/ Working Principle - w P U to L O igure ormal igure 3 e q Pressure in diaphragm chamber Inlet pressure () (Inlet pressure) (Outlet pressure) (Inlet pressure) (Outlet pressure) igure 2 ack flow r When the inlet pressure (P) is higher than the regulating pressure, the check valve w closes and operates as a normal regulator (igure ). When the inlet pressure (P) is shut off and released, the check valve w opens and the pressure in the diaphragm chamber q is released into the inlet side (igure 2). This lowers the pressure in the diaphragm chamber q and the force generated by the pressure regulator spring e lifts the diaphragm. Valve r opens through the stem, and the outlet pressure is released to the inlet side (igure 3). pecific Product Precautions Pressure in diaphragm chamber Inlet pressure () e sure to read before handling. Refer to front matters 42 and 43 for afety Instructions and pages 287 to 29 for.r.l. Precautions. Maintenance Warning. Replace the element every 2 years or when the pressure drop becomes., whichever comes first, to prevent damage to the element. Warning. et the regulator while checking the displayed values of the inlet and outlet pressure gauges. Turning the handle excessively can cause damage to the internal parts. 2. o not use tools on the pressure regulator handle as this may cause damage. It must be operated manually. aution. e sure to unlock the handle before adjusting the pressure and lock it after setting the pressure. ailure to follow this procedure can cause damage to the handle and the outlet pressure may fluctuate. Pull the pressure regulator handle to unlock. (You can visually verify this with the orange mark that appears in the gap.) Mounting and djustment Push the pressure regulator handle to lock. When the handle is not easily locked, turn it left and right a little and then push it (when the handle is locked, the orange mark will disappear). Orange mark 43 ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com
ilter Regulator with uilt-in Pressure auge with ackflow unction eries W2/3/ onstruction W2 W3/ PUto L O P U to L O -! o -! -! o e -! e w w y q!2 y q!2 u r t i u r t i omponent Parts o. escription Material W2 W3 W ody Z 2 3 onnet andle PT POM ote Platinum silver lack lack Replacement Parts o. escription Material Qty. Part no. W2 W3 W 4 Valve assembly rass, R W2P-3 W3P-3 WP-3 5 ilter element on-woven fabric 2P-6 3P-6 P-6 6 iaphragm assembly Weatherability R R2P-5 R3P-5 RP-5 7 owl O-ring R 2P-26 3P-26 4P-26 8 owl assembly () P 2 (2) 3 (2) 4 9 Pressure gauge (3) 2-3- 4- Pressure gauge cover P R2P- R3P- RP- lip tainless steel R2P-42 R3P-42 RP-42 2 heck valve assembly R2P-2 ote ) Including O-ring. ontact M regarding the bowl assembly supply for psi and unit specifications. ote 2) owl assembly (W3/) includes a bowl guard (steel band material). ote 3) Only the standard part numbers are listed for the pressure gauges. or the optional part numbers, refer to page 429. R L W V 8 9 ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com 43
W2 Q øt E W3/ Q øt R øw V P O eries W2/3/ imensions R racket Panel fitting dimension U øv øt et nut M Plate thickness W2: Max. 3.5 2 x P () rain O Min. clearance for maintenance P racket Panel fitting dimension øu et nut M Plate thickness W3/: Max. 3.5 2 x P () rain E Min. clearance for maintenance ccessory/optional specifications With auto drain (..) W2 With auto drain (.O./..) W3/ with level gauge rain cock with barb fitting imensions O M5 x.8 /8 Width across flats 4.O.: lack..: ray ø One-touch fitting Width across flats 7 /4 arb fitting pplicable tubing: T64 W2 W3 W P /8, /4 /4, 3/8 /4, 3/8, /2 53 7 ote) 79 223.5 26.5 tandard specifications 9 8.5 4.5 E 52 45 59 58 75 7 47 59 7 M39 x.5 M5 x.5 M55 x.5 55 8 35 45 5 48 58.5 65.5 ccessory specifications racket mount M P 65 5.4.4 7 6.5.5 77 8.5 2.5 Q 65 75 85 R 2.3 2.3 2.3 ccessory specifications Optiional specifications Panel mount With auto drain With barb fitting with level gauge W2 W3 W 43 5 56 U 39.5 5.5 55.5 V 9.5 25 27.5 W 6 7 7 T 52.5 65 7 ote) 96 264.5 3.5 ote) 23.5 269.5 ote) 83 23.5 268.5 ote) 79 256.5 274.5 ote) 276.5 294.5 ote) ull length demension is measured when the handle is unlocked. 432 ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com
ilter Regulator with uilt-in Pressure auge W2/3/ Made to Order pecifications: ontact M for detailed dimensions, specifications, and lead times. W 3 q etting and Pressure auge ull pan.4 3 X6 2 3 ody size /8 3/8 /2 With back flow mechanism escription With back flow mechanism Thread type ote ) rain guide: PT /8 (W2()), PT /4 (W3() to W6()); uto drain port: With ø3/8" Onetouch fitting (W3() to W6()) ote 2) rain guide: /8 (W2()), /4 (W3() to W6()) 2 3 4 Type Rc PT Port size /8 /4 3/8 /2 2 ody size 3 ccessory () Option 2 6 8 (3) W Z (4) ccessory (2) Mounting ngle of Pressure auge Mounting angle 2 9 escription ylon bowl with level gauge With bowl guard on-relieving rain cock with barb fitting: ø6 x ø4 nylon tubing ame plate, caution plate for bowl, and pressure gauge in imperial units (psi, ) When more than one specification is required, indicate in ascending alphanumeric order. ote 3) Without a valve function. ote 4) or thread type PT. This product is for overseas use only according to the new Measurement Law. (The I unit type is provided for use in apan.) escription With set nuts escription With bracket (With set nuts) loat type auto drain (ormally closed) loat type auto drain (ormally open) W2() to () W2() to () W2() to () W3(), () When more than one specification is required, indicate in ascending alphanumeric order. 3 8 W2() to () W2() to () W3(), () W2() W2() to () W2() to () W3(), () W2() to () 4 27 Mounting angle view PU to L O PU to L O PU to L O PU to L O ccessory/optional ombinations ombination ccessory/optional specifications With bracket loat type auto drain (ormally closed) loat type auto drain (ormally open) With set nut -2 ylon bowl -6 with level gauge -8 With bowl guard - rain guide - on-relieving type - rain cock with barb fitting -W ccessory Option ame plate, caution plate for bowl, and pressure gauge in imperial units (psi, ) -Z Possible to change to the optional mounting angles. or details, refer to page 434, Procedure for replacing or changing the mounting angle of a pressure gauge. : ombination available : Varies depending on a model : ombination not available : vailable only with PT thread ccessory Option pplicable filter regulator 2 6 8 W Z W2 W3/ ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com 433 R L W V 8 9
X eries /R/W pecific Product Precautions e sure to read before handling. Refer to front matters 42 and 43 for afety Instructions and pages 287 to 29 for.r.l. Precautions. Procedure for replacing or changing the mounting angle of a pressure gauge Warning When replacing a pressure gauge and/or changing the mounting angle, release the inlet and outlet pressure completely. It is dangerous to replace the pressure gauge or change the mounting angle while it is under pressure.. dvance preparation eep the handle unlocked and completely loosened. The unlocked condition of the handle can be visually confirmed by the Orange line shown near the bottom of the handle. 2. Removing the handle To remove the handle, align the mark on the handle and the mark on the bonnet and then pull the handle. 3. Removing the clip When the mark on the bonnet and the mark on the pressure regulator guide are alligned, the clip can be seen from the side view of the bonnet. The clip can be picked and removed with tweezers. When adjusting the mark, turn the pressure regulator guide clockwise for adjustment. onnet side view Pressure regulator guide mark mark onnet Orange mark Orange mark mark mark onnet 4. Removing the pressure gauge Pull the pressure gauge out by holding the outer edge of the dial. o not touch the internal mechanical portion (shown inside the dotted box). ccuracy of the pressure gauge may be adversely affected. Outer edge lip Internal mechanical portion 5. etting the pressure gauge fter the mounting angle is adjusted as required, hold the outer edge of the pressure gauge dial and gently press down. or reference, the required clearance between the bottom of the dial and the top of the pressure regulator guide is shown in table. ote ) When the pressure gauge cannot be easily positioned, slightly rotate it. (The cog from the planet gear of the pressure regulator guide may be caught vertically in the cog from the sun gear which is mounted and integrated with the pressure gauge) ote 2) Position the pressure gauge to the very bottom. ote 3) ttached to the tip of the pressure gauge is an O-ring with grease applied to it. Please use caution to prevent particles and/or dust from entering the pressure gauge when it is set. Otherwise, they may cause air leakage. 6. etting the clip Insert the clip in the side of the bonnet when the mark on the pressure regulator guide and the mark on the bonnet are aligned. When inserting and setting the clip, use an instrument with a narrow tip, such as tweezers. ote ) The clip is slightly tapered towards its tip to prevent it from being released. et the clip by slightly opening its tip. ote 2) When the clip cannot easily be set, the cause may be as follows: () The pressure regulator screw might have been in a lower position than then the current one. (The pressure regulator screw may reach a lower position if the pressing force of the pressure regulator screw is excessively applied. This occurs because there is a clearance between the pressure regulator nut and pressure spring, when the pressure regulator screw is loosened completely.) (2) The pressure gauge is not firmly set. ountermeasures... Refer to 5 etting the pressure gauge. onnet side view 7. etting the handle inished when the handle is set. Table. learance imensions X dimension (reference value) Pressure regulator guide mark mark onnet R2 W2 2.6 mm R3 W3 R W 3.3 mm 3.3 mm lip 434 ourtesy of teven Engineering, Inc.-23 Ryan Way, outh an rancisco, 98-637-Main Office: (65) 588-92-Outside Local rea: (8) 258-92-www.stevenengineering.com