Most reliable double-offset, metal-seated high performance butterfly valves suitable for high temperature, high pressure, and high velocity service.

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Metal-Seat Bubble-Tight Butterfly Valve 0/0Q Most reliable double-offset, metal-seated high performance butterfly valves suitable for high temperature, high pressure, and high velocity service.

1 Metal-Seat Bubble-Tight Butterfly Valve 0/0Q Most reliable double-offset, metal-seated high performance butterfly valves suitable for high temperature, high pressure, and high velocity service. 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 Bubble tight metal seat design Most metal seated butterfly valves allow quite a large amount of leakage under actual service conditions due to the simple design of the seat ring, even though various factory inspection can be passed in tems of ambient water and air. 7Y and can offer a low leakage rate of 0Nm /Min/inch to 0.0%CV even under actual working conditions (high temp. etc.) by employing a uniquely designed double ring resilient seat with coil spring. Double offset design The double offset disc design minimizes seatring stress, the spherical sealing surface of the disc fits precisely into the resilient metal seatring, which provides longer service life. Sealing principles The disc and seatring have spherical contacting surfaces. ll points on the circles of the disc and seatring make contact on a single plane simultaneously. This increases the sealing capability to a bubble tight level even under high pressure. The double seatring incorporates a coil spring to maintain positive sealing, which can expansion or contraction of the disc or valve body due to pressure or temperature changes. Wider temperature range 7Y and types can be used from minus degrees C to plus 00 degrees C subject to the pressure temperature rating chart with or without special bonnet arrangements. No conventional RTFE seated high performance butterfly valves will work at over degrees C. Easy maintenance 7Y and types have a very simple design, with compact and light. The sealing parts can be easily repaired by removing the seat retainer and replacing the seat ring, without special tool. Low torque In addition to the effect of the double offset design, a self lubricating shaft bearing produces lower torque and smooth operation, which results in cost savings when selecting an actuator. Bidirectional design lthough there is a preferred flow direction, bidirectional use is possible depending on working conditions. Fire proof construction s no rubber or TFE parts are employed as metal seated valves, 7Y and types would never loose their sealing members during a fire. TFE seat TFE seat version is available as Y although its working temperature is limited to degrees C and subject to working conditions. Jacket body design jacket body design is available as 9Y upon special request. 7Y-0

2 Lock lever Worm gear neumatic cylinder Motorized Standard specifications for 7Y/ Model Size Connection ressure rating pplicable flange standard Max. working pressure direction Seat leakage rate Working temperature range Standard materials ( ) shows semistandard Coating Body Disc * * Stem * Seat ring * JIS 0K/NSI Lb type (7Y) for 0 to 00 mm is also available on request. * Consult Tomoe in case of flow to stem. * SUS F with stellite # welding on edge of disc must be used for 0 to mm type for 0 to 00 degrees C applications. * SCS (SCS ) with stellite # welding on edge of disc must be used for 0 to 00 mm in case of 0 to 00 degrees C application. * SUS 0 must be used for. Ma type and over or for 0 to mm type at 0 degrees C and over or for 0 to 00 mm types at 0 degrees C and over. * When using spiral gaskets, please refer to the chart of recommended gaskets. * lease refer to ressure - Temperature chart if leakage rate at flow to disc is necessary. * The face to face dimensions are the manufacturer, s standard. 9Y (Jacket type) Carbon steel Stainless steel Carbon steel body Stainless steel body Carbon steel body Stainless steel body 0 to mm NSI Lb 7Y 0 to mm to mm JIS 0K JIS K/K/0K/0K, NSI/SME 0Lb/Lb.90 Ma.9 Ma Bi-directional ( to disc is recommended.) SCH / WCB SCS / CFM SUS F / SCS Wafer type 0 to 00 mm 0 to 00 mm JIS K JIS K/K, NSI 0Lb * 0.9 Ma to disc * Tight shut off (Subject to working conditions. See chart below.) * Carbon steel body: 0 to 0 degrees C, Stainless steel body: to 00 degrees C SCH / WCB SCS (SCS ) / CF (CFM) SCS / CF SCS (SCS ) / CF (CFM) SUS (SUS 0 * ) SUS 9 J (SUS 0 * ) SUS L Silicon resin coating (Grey N7). Heat resistant silver coating for over degrees C applications. No coating on stainless steel body. Disc locus when Disc opens Disc center Stem center 0/0Q 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 Diameter of Disc sphere Disc center at Disc full open Stem center Double-Eccentric Disc Spherical Disc What makes 7Y and so different? The double-ring, resilient valve seat. 9 7Y-0

3 7Y Expanded view of components 0mm to mm 7-0/0Q 0Y/0Y 0mm to mm 7Y/ 0MHLV 7- T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F Y-0

4 7Y arts list 7Y arts list0mm to mm0 to 0 degrees C No. Description Q ty Remarks Body Disc Stem Seat ring Outer ring Seat ring retainer Top shaft bearing Bottom shaft bearing Bottom cover Seal ring Taper pin acking retainer Gland packing Gland bush Gland flange Gland bolt Gland nut Spacer ring Ball Set screw 7Y arts list0mm to mm0 to0 degrees C No. Description Q ty Remarks Body Disc Stem Seat ring Outer ring 7 Seat ring retainer Top shaft bearing 9 Bottom shaft bearing Bottom cover Seal ring Taper pin acking retainer Gland packing Gland bush Gland flange 7- Gland bolt 7- Gland nut Spacer ring 0 Ball Set screw - Heragon bolt - Spring washer Remark: The indicates recommended spare parts. They are supplied as Seat ring set with a small hexagonal spanner to remove set screws (.). For 0mm to mm types in applications 0 degrees C and over as well as 0mm to mm types in applications 0 degrees C and or over, the design structures are diffirent. 0/0Q 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 7Y-0

5 7Y ctuator selection chart 0 to 0 degrees C Model Differential pressure 0 / 0 Size ( mm inch ( 0 0 to 0.9Ma 0/0Q 0.9 to.ma T T- T- T-. to.9ma 0Y/0Y.9 to.9ma 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 0 to 0.9Ma U, S 0.9 to.ma U- U- DGH-. to.9ma I, R, Q U, K.9 to.9ma 0 to 0.9Ma 0.9 to.ma. to.9ma.9 to.9ma 0 to 0.9Ma 0.9 to.ma. to.9ma.9 to.9ma R- Q- I- I- I- R- Q- TG-S TG-S TG-S TG-S TG- TG-S DGH- TG- TG- TG-S TG-S TG-0S I 0 to 0.9Ma 0.9 to.ma. to.9ma I-0 I- I- I-. I-. I- I-.9 to.9ma I-. E, L 0 to 0.9Ma 0.9 to.ma. to.9ma SRE-0 SRE-00 SRE-00 LTKD-0 0.kW/DGH- LTKD-0 0.kW/ DGH- LTKD-0 0.kW/DGH-.9 to.9ma LTKD-0 0.kW/DGH- 7Y-0 97

6 7Y ctuator selection chart 0 to 00 degrees C Model Differential pressure 0 / 0 Size ( mm inch ( 0 0 to 0.9Ma 0.9 to.ma T T- T- T-. to.9ma 0/0Q.9 to.ma 0Y/0Y 0 to 0.9Ma U, S 0.9 to.ma U- U- DGH-. to.9ma I, R, Q U, K.9 to.ma 0 to 0.9Ma 0.9 to.ma. to.9ma.9 to.ma 0 to 0.9Ma 0.9 to.ma. to.9ma R- Q- I- R- Q- I- I- TG-S TG-S TG-S TG- TG-S DGH- TG- TG-S TG-0S 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F.9 to.ma TG-S 7 0 to 0.9Ma I 0.9 to.ma. to.9ma I- I- I-. I- I-.9 to.ma E, L 0 to 0.9Ma 0.9 to.ma. to.9ma SRE-0 SRE-00 SRE-00 LTKD-0 0.kW/DGH- LTKD-0 0.kW/DGH- LTKD-0 0.kW/DGH-.9 to.ma LTKD-0 0.kW/DGH- 9 7Y-0

7 7Y Stem material-bonnet selection 0mm to mm HIGH LOW LOW HIGH 0/0Q 0Y/0Y 7Y/ 0MHLV T/T Body 0 degrees C degrees C 00 degrees C SF90 SCH SUSF SCS SUSF SCS 77ZNV-Z Disc SUSF SUSF SUSF + STELLITE 7/7 7X/7X Seat ring SUSL SUSL 70G/7F/70F 7 Stem Bearing SUS SUS0 SUS9J SUS0 degrees C or less TFE + SUS degrees C and higher Coating SUS0 Coating mm In case of SCH/WCB body In case of SCS/CFM body Shut off pressure (Ma) SUS0 SUS Shut off pressure (Ma) SUS0 SUS9J SUS0 Extension fin bonnet Working temperature Working temperature 7Y-07 99

8 7Y Stem material-bonnet selection 0mm to mm ctuator extension bonnet 0/0Q 0Y/0Y 7Y/ Body Disc Seat ring Stem Bearing 0 degrees C SCH SCS SCH SCS SUSF STELLITE SUSF SUSF SUSF SUSF 0 degrees C and higher SUS SUS0 SCS SUSL SUSL SUSL Coating 0 degrees C 0 degrees C 0 degrees C 00 degrees C SUS9J SUS0 SUS SUS0 Coating SUS9J SUS0 SUS0 Coating 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F.0 0mm, mm In case of SCH/WCB body.0 0mmmm In case of SCS/CFM body 7.0 SUS0 ctuator Extension bonnet.0 SUS0 ctuator extension bonnet Shut off pressure (Ma) SUS0 SUS SUS ctuator extension bonnet Shut off pressure (Ma) SUS0 SUS9J SUS9J ctuator Extension bonnet SUS0 Extension fin bonnet Working temperature Working temperature mmmm In case of SCH/WCB body mmmm In case of SCS/CFM body.0 SUS0 SUS0 ctuator extension bonnet.0 SUS0 SUS0 ctuator extension bonnet Shut off pressure (Ma) SUS SUS ctuator extension bonnet Shut off pressure (Ma) SUS9J SUS9J ctuator extension bonnet SUS0 Extension fin bonnet Working temperature Working temperature 7Y-0

9 7Y Body constructions and dimensions 7Y 7Y 0/0Q C 0Y/0Y 7Y/ 0MHLV d D H B d D H B T/T 77ZNV-Z L L 0mm, mm mm, mm L L 7/7 7X/7X 70G/7F/70F 7 " to "(0mm to mm) Nom. dia. (in./mm) Dimension (in./mm) d D L L H B C 9/ / 7/ / 7/ / 7/ 9 / Weight. " to " (0mm to mm) Nom. dia. (in./mm) Dimension (in./mm) d D L L H B / / 9/ 9/ / / Weight / / / / / 9/ 9/ / 9. / 7/ / / 7 / / 7/ / 7/ / / / / 9/ 7/.9 / / / 7/ 9 7/ / 9/ / / / 9/ / / 9/ 9/ / 9/ / / 7/ / / / 7 / 7/ / / / 7/ /.9. 7Y-09

10 Body constructions and dimensions 0/0Q d D H B C 0Y/0Y 7Y/ 0MHLV T/T L L 77ZNV-Z 7/7 7X/7X 70G/7F/70F " to " (0mm to 00mm) Nom. dia. (in./mm) Dimension (in./mm) Weight d D L L H B C 7/ / / 7/ / / / 7 / / / / 9/ / / / 0 / / 0 / / / 7/ 9/ / / / / / 9/ / / / / 7/ / / 9/ 7/ / 9 9/ Y-

11 0/0Q 0Y/0Y Lock lever type7y-t0mm to 0mm (0mm to mm0 to 0 degrees C/0mm to mm0 to 0 degrees C) mm inch d D L L H / H H 7 7 W 0 0 Cylinder type T- T- T- T- T- T Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 ctuator extension bonnet (0mm0 to 0 degrees C) Cylinder mm inch d D L L H H H W type T-.0 (0mm to mm0 to 00 degrees C/0mm0 to 00 degrees C) mm inch d D L L H / H 0 H 7 7 W 0 0 Cylinder type T- T- T- T- T- T Y-

12 7Y-T W 7Y-T Bonnet type 0mm to mm H 0 to 0 degrees C 0 to 00 degrees C HIGH H LOW D d H LOW HIGH 0/0Q L L 0Y/0Y 7Y/ 0MHLV 0mm 0 to 0 degrees C ctuator extension bonnet 0 to 0 degrees C 0 to 00 degrees C T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 T Installation direction T TB TC TD 7Y-

13 0/0Q 0Y/0Y 7Y/ 0MHLV Worm gear type7y-u0mm to mm/ 7Y-S (0mm to mm) (0mm to mm0 to 0 degrees C/0mm to mm0 to 0degrees C) mm inch d D L L H H H / E K F W 0 0 Gear type U- U- U- U- U- DGH- DGH- DGH- DGH T/T 77ZNV-Z 7/7 7X/7X ctuator extension bonnet (0mm to mm0 to 0 degrees C) mm inch d D L L H H H E 7 7 K F W 0 0 Gear type DGH- DGH- DGH- DGH G/7F/70F 7 (0mm to mm0 to 00 degrees C/0mm to mm0 to 00 degrees C) mm inch d D L L H H H / E K F W 0 0 Gear type U- U- U- U- U- DGH- DGH- DGH- DGH Y-

14 7Y-U/S 7Y-U/S Bonnet type D d F W H H H L K E L 0mm to mm 0 to 0 degrees C LOW HIGH 0 to 00 degrees C LOW HIGH 0/0Q 0Y/0Y 7Y/ 0MHLV 0mm to mm 0 to 0 degrees C ctuator extension bonnet 0 to 0 degrees C 0 to 00 degrees C T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 U/S Installation direction U/S UB/SB UC/SC UD/SD 7Y-

15 0/0Q 0Y/0Y 7Y/ 0MHLV Double-acting pneumatic cylinder type7y- I0mm to mm (0mm to mm0 to 0 degree C/0mm to mm0 to 0 degrees C) mm inch d D L L H H H / f f Cylinder type I- I- I- I- I- I- I- I- I- I- I T/T 77ZNV-Z 7/7 7X/7X ctuator extension bonnet (0mm, mm0 to 0 degrees C) mm inch d D L L H H H f f Cylinder type I- I- 70G/7F/70F 7 (0mm to mm0 to 00 degrees C/0mmmm0 to 00 degrees C) mm inch d D L L H H H / f f Cylinder type I- I- I- I- I- I- I- I- I- I Y- 7

16 7Y- I 7Y- I Bonnet type f f 0mm to mm 0 to 0 degrees C 0 to 00 degrees C H HIGH LOW HIGH LOW 0/0Q D d H H 0Y/0Y L L 7Y/ 0MHLV 0mm to mm 0 to 0 degrees C ctuator extension bonnet 0 to 0 degrees C 0 to 00 degrees C T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 I Installation direction ir port ir port ir port ir port I IB IC ID 7Y-

17 (0 to 0 degrees C) Double-acting pneumatic cylinder type7y-mm to mm mm inch d D L L H H H f f Cylinder type TG- 0/0Q TG- TG- TG- 90 0Y/0Y 7Y/ ctuator extension bonnet (0 to 0 degrees C) mm inch d D L L H H H f f Cylinder type 0MHLV TG- TG- TG- 7 9 T/T 77ZNV-Z (0 to 00 degrees C) mm inch d D L L H H H f f Cylinder type TG- 7 7/7 7X/7X TG- TG- 70G/7F/70F 7 7Y-7 9

18 7Y- f f H H 0/0Q D d H 0Y/0Y 7Y/ L L 0MHLV 7Y- Bonnet type mm to mm 0 to 0 degrees C ctuator extension bonnet 0 to 0 degrees C 0 to 00 degrees C T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 Installation direction B C D 7Y-

19 Single-acting pneumatic cylinder type7y-rir to open0mm to mm/ 7Y-Qir to close0mm to mm (0 to 0 degrees C) mm inch d D L L H H H 0 (0) f f Cylinder type R-/Q- 0/0Q 0Y/0Y 7Y/ 0MHLV T/T 0 / (0 to 00 degrees C) mm inch d D L L H H H 0 / (0) 7 () 7 () 7 () 7 () (0) (0) 7 () f f R-/Q- R-/Q- R-/Q- R-/Q- R-/Q- Cylinder type R-/Q- R-/Q- R-/Q- 9 77ZNV-Z () R-/Q- 7 7 () R-/Q- 7/7 7X/7X Remark: ( ) shows Q (ir to close). 70G/7F/70F 7 7Y-9

20 7Y-Q 7Y-R f f D d D d H H H 0/0Q 0Y/0Y 7Y/ 7Y-R/Q Bonnet type 0mm to mm 0 to 0 degrees C 0 to 00 degrees C L L 0MHLV T/T HIGH 77ZNV-Z LOW HIGH Stem LOW Stem 7/7 7X/7X 70G/7F/70F 7 Q Installation direction ir port ir port ir port ir port Q QB QC QD R Installation direction ir port ir port ir port ir port R RB RC RD 7Y-0

21 Single-acting pneumatic cylinder type7y-uir to open0mm to mm/ 7Y-Kir to close0mm to mm (0mm to mm0 to 0 degrees C/0mm to mm0 to 0 degrees C) 0/0Q 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 mm inch d D L L H H H mm inch d D L L H mm inch d D L L H H 07 H H ctuator extension bonnet (0mm to mm0 to 0 degrees C) f f f f TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-0S (0mm to mm0 to 00degrees C/0mm to mm0 to 00 degrees C) H f f Cylinder type Cylinder type TG-S TG-S TG-S TG-S TG-S TG-S TG-0S Cylinder type TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-S TG-0S Y-

22 7Y-K 7Y-U f f D d D d H H H 0/0Q 0Y/0Y 7Y/ 7Y-U/K Bonnet type 0mm to mm 0 to 0 degrees C 0 to 00 degrees C LOW HIGH 0mm to mm L 0 to 0 degrees C ctuator extension bonnet 0 to 00 degrees C 0 to 0 ddegrees C L 0MHLV T/T 77ZNV-Z HIGH LOW 7/7 7X/7X Stem Stem Stem Stem Stem 70G/7F/70F 7 K Installation direction K KB KC KD U Installation direction U UB UC UD 7Y-

23 0/0Q 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F / Single phase electric motor type7y- I0mm to mm (0mm to mm0 to 0 degrees C/0mm to mm0 to 0 degrees C) Motor type mm inch d D L L H H H F K ctuator extension bonnet (0mm to mm0 to 0 degrees C) mm inch d D L L H H H F K I-0 I- I- I- I- I- I-. I- I-. I- I-. I- I- I- I- I- Motor type I-. I- I- I- I- I I Installation direction I IB IC ID 7Y-

24 Single phase electric motor type7y- I0mm to mm (0mm to mm0 to 00 degrees C/0mm to mm0 to 00 degrees C) mm inch d D L L H H H / Y- I D d H H H F K 7Y- Bonnet type 0mm to mm 0 to 0 degrees C LOW HIGH F K Motor type I- I- I- I- I- I-. I-. I- I-. I- I- I- I- I- 0 to 00 degrees C LOW HIGH /0Q 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 L L 0mm to mm 0 to 0 degrees C ctuator extension bonnet 0 to 0 degrees C 0 to 00 degrees C 7Y-

25 0/0Q 0Y/0Y 7Y/ 0MHLV T/T / Three phase motor actuator type7y-e0mm to mm (0mm to mm0 to 0 degrees C/0mm to mm0 to 0 degrees C) Motor type mm inch d D L L H H H F K SRE-0 SRE-0 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE ZNV-Z 7/7 7X/7X 70G/7F/70F 7 ctuator extension bonnet (0mm to mm0 to 0 degrees C) mm inch d D L L H H H F K Motor type SRE-00 SRE-00 SRE-00 (0mm to mm0 to 00 degrees C/0mm to mm0 to 00 degrees C) mm inch d D L L H H H 0 / F K Motor type SRE-0 SRE-0 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE-00 SRE Y- 7

26 7Y-E F K 7Y-E Bonnet type 0mm to mm 0 to 0 degrees C 0 to 00 degrees C H HIGH LOW HIGH LOW 0/0Q D d H H L L 0Y/0Y 7Y/ 0MHLV 0mm to mm 0 to 0 degrees C ctuator extension bonnet 0 to 0 degrees C 0 to 00 degrees C T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 E Installation direction E EB EC ED 7Y-

27 Three phase motor actuator type7y-lmm to mm (0 to 0 degrees C) 0/0Q mm inch d D L L H H H E K 9 F 9 M Motor type LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z ctuator extension bonnet (0 to 0 degrees C) mm inch d D L L H H H E K 9 F 9 M Motor type LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH /7 7X/7X 70G/7F/70F 7 (0 to 00 degrees C) mm inch d D L L H H H E K 9 F 9 M Motor type LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- 9 LTKD-0 0.kW/ DGH- LTKD-0 0.kW/ DGH- 9 LTKD-0 0.kW/ DGH- 7Y-7 9

28 7Y-L M 0/0Q E K F 0Y/0Y H 7Y/ 0MHLV H H D d T/T L mm to mm L 7Y-L Bonnet type 0 to 0 degrees C ctuator extension bonnet 0 to 0 degrees C 0 to 00 degrees C 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 L Installation direction L LB LC LD 7Y-

29 7Y Cv value/pressure loss coefficient Cv value ressure loss coefficient mm mm 0/0Q 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z Cv value mm 0mm mm mm 0mm mm 0mm ressure loss coefficient (fully open) (fully open) Valve opening Valve opening mm mm 0mm mm mm 0mm mm mm mm 7/7 7X/7X 70G/7F/70F 7 7Y Cv value mm inch / Y ressure loss coefficient Valve opening mm inch / Y-9

30 7Y pplicable pipe list in case of Nominal size mm inch / Sch0 Sch Sch0 Sch0 SchS Sch0S Stem Side Stem Side Stem Side Stem Side Stem Side Stem Side Stem Side (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) Minimum internal diameters of piping (mm) /0Q 0Y/0Y 7Y/ 0MHLV 7Y pplicable pipe list in case of B Nominal size mm inch 0 / 0 0 Sch0 Sch Sch0 Sch0 SchS Sch0S Stem Side Stem Side Stem Side Stem Side Stem Side Stem Side Stem Side (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) (up stream) (down stream) T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 Remark : pplicable Not applicable Remark : The clearance between the disc and the pipe is based on I 09 and MSS S-7. 0mm to 0mm:.mm; mm to mm:.0mm Remark : Butterfly valves are inserted into a pipe that was fitted with the disc when fully open. In cases where there is an X in the chart above or you are using a pipe or flange that is less than the minimum inner pipe diameter, use is still possible if means are taken such as inserting a spacer between the valve and flange. For details, please consult us. B Minimum internal diameter of piping Minimum internal diameter of piping 7Y-0

31 7Y pplicable flange standard 0/0Q 0Y/0Y 7Y/ 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 JIS NSI mm inch K K 0K 0K 0Lb Lb / D T D D D D D D D D D D T D Can be used without flange drilling. D With flange drilling T With flange tapping With additional flange drilling. 7Y Special spiral gasket size 7Y iping gasket flange flange K, K, 0K K K, 0K 0Lb 0Lb Lb mm inch D D D D D D D D D D / dedicated spiral gasket for 7Y, in the chart above, is available for high-temperature use over degrees C. Be sure to use it instead of the flange gasket in this case. Do not use a metal jacket type or serrated-shaped metal gasket, or similar types *The use of off-the-shelf and Teflon seat gaskets is possible. 7Y-

32 7Y iping bolts and nuts sizes JISK JISK JIS0K mm inch 0 / 0 0 Long bolts and nuts -M0 -M -M -M -M070 -M090 -M090 Hexagon bolts Long bolts and nuts Hexagon bolts Long bolts and nuts Hexagon bolts -M0 -M -M070 -M070 -M90 -M90 -M -M0 -M -M070 -M070 -M90 -M -M 0/0Q 0Y/0Y 7Y/ -M -M -M00 -M700 -M -M -M -M9 NSI0Lb NSILb mm inch Long bolts and nuts Hexagon bolts Long bolts and nuts Hexagon bolts U/-UNC / -U/-UNC -U/-UNC -U/-UNC -U/-UNC7 -U/-UNC0 -U/-UNC0 -U7/- 9UNC -U/-UNC -U/-UNC7 -U/-UNC7 -U/-UNC7 -U/-UNC0 -U/-UNC0 -U7/- 9UNC -U - UN 0 -U-UN -U-UN 0MHLV T/T 77ZNV-Z 7/7 7X/7X 70G/7F/70F 7 -U7/- 9UNC -U /-UN Remark: Use SNB 7/SC ( B7/, 9 H) SUS0/SUS0 Long bold uses full threaded bolt. Hexagon nut uses heavy nut. metric screw should have pitches if its nominal diameter exceeds M0. unified screw should have threads per inch if its nominal diameter exceeds inch. Hexagon bolts (set bolts) are indicated with the retainer on the up and the stem on down. Example Long bolts - M N M L Hexagon bolts - M0 (set bolts) Long bolts and nuts (full thread) M L Hexagon bolts (set bolts) M S L Hexagon bolt holes Hexagon bolt holes 7Y-

Worm gear cylinder Motorized Diaphragm

Rotary Control Valve TT A 0A/0Q 0A/0Q 0Y/0Y 0M HV 7V/ T/7T/7Q T/T 77ZNAV-Z 700G/70G/705G 7/7 7X/7X 70G/7F/70F 7 90C/90C neumatic Worm gear cylinder Motorized Diaphragm For various applications such as