High Efficiency Materials Series 810, 820 Main valve

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Kristin Simon
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Materials Series 810, 820 Main valve Below is a schematic drawing of the parts layout for the LESER POSV main valve including both the Standard and Extra Orifice designs.

1 Materials Series 810, 820 Main valve Below is a schematic drawing of the parts layout for the LESER POSV main valve including both the Standard and Extra Orifice designs. For the related parts listing, see opposite page. 55 Stud 56 Nut Top plate O-ring, inner top plate seal O-ring, outer top plate seal Dome spring Piston guide Piston, complete 6.2 Piston top Guide ring O-ring piston Backup ring Piston body Guide ring Allen head screw 58 Screw 7 O-ring disc, complete 7.1 O-ring disc 7.3 O-ring 7.2 Disc retainer 7.4 Nut 5 Nozzle 4 Fitting Backup ring O-ring, pitot tube O-ring, seat seal 3 Tube 2 Pitot tube Option: Full nozzle design 26

2 Materials Series 810, 820 Main valve Materials Item Component Type 8112 / 8212 Type 8114 / 8214 Type 8113 / Pitot tube 3 Tube 4 Fitting 5 Nozzle 6 Piston, complete 6.1 Piston body 6.2 Piston top 6.4 Backup ring 6.5 Guide ring 6.6 Allen head screw 7 O-ring disc, complete 7.1 O-ring disc 7.2 Disc retainer 7.4 Nut 8 Piston guide 9 Top plate 55 Stud 56 Nut 58 Screw 59 Dome spring 62 Backup ring Option code SA 216 WCB SA 351 CF8M SA 352 LCB with carbon with carbon with carbon with carbon with carbon with carbon A4-70 A4-70 A4-70 A4-70 A4-70 A SA B7M B8M B8M H 8M 8M A4-70 A4-70 A , 6.4, 7.3, 60, 61, 63, 67 O-ring 1) R05 Buna-EP (EPDM Ethylene-Propylene-Dine) * Viton (FKM Fluorocarbon) R06 Kalrez (FFKM Perfluor) Please notice: Modifications reserved by LESER. LESER can upgrade materials without notice. Every part can be replaced by other material acc. to customer specification. 1) For further soft seal materials refer to page 69 27

Materials Series 810 Pop Action Pilot Valve Below is a schematic drawing of the parts layout for the LESER Series 810 Pop Action pilot valve. For the related parts listing, see opposite page.

3 Materials Series 810 Pop Action Pilot Valve Below is a schematic drawing of the parts layout for the LESER Series 810 Pop Action pilot valve. For the related parts listing, see opposite page. 40 Cap 18 Adjusting screw Lock nut Spring plate (upper) 54 Spring 9 Bonnet Spring plate (lower) Piston guide Bonnet, base part 2 Guide Bug screen O-ring, seat seal 13 Seat, exhaust (upper) 14 Seat, exhaust (lower) 35 Gasket 15 Plunger 5 Seat feeding 30 O-ring, seat seal 33 Backup ring 32 O-ring 7 8 Disc, feeding (upper) Disc, feeding (lower) Please notice: Modifications reserved by LESER. LESER can upgrade materials without notice. Every part can be replaced by other material acc. to customer specification. 32 O-ring, piston seal 33 Backup ring 20 Nut 21 Counter nut 12 Adjusting screw 28

4 Materials Series 810 Pop Action Pilot Valve Materials Item Component Standard NACE 2 Guide 5 Seat, feeding 7 Disc, feeding (upper) 8 Disc, feeding (lower) 9 Bonnet 10 Bonnet, base part 11 Piston guide 12 Adjusting screw 13 Seat, exhaust (upper) 14 Seat, exhaust (lower) 15 Plunger 16 / 17 Spring plate (upper and lower) 18 Adjusting screw 19 Lock nut 20 Nut 21 Counter nut 26 Piston 33 Backup ring 35 Gasket for set pressures bar only for set pressures bar only 40 Cap 54 Spring 64 Bug screen 30, 31, 32 Option code Stainless steel INCONEL X750 Viton * (FKM Fluorocarbon) O-ring 1) R05 Buna-EP (EPDM Ethylene-Propylene-Dine) R06 Kalrez (FFKM Perfluor) 1) For further soft seal materials refer to page 69 29

Materials Series 810, 820 Manifold block Below is a schematic drawing of the parts layout for the Manifold block. For the related parts listing, see opposite page. 24.8 Gasket 24.

5 Materials Series 810, 820 Manifold block Below is a schematic drawing of the parts layout for the Manifold block. For the related parts listing, see opposite page Gasket 24.7 Lock screw Bushing Manifold block O-ring O-ring 24.4 O-ring (Outlet) O-ring (Exhaust Series 820) Piston 24.4 O-ring (Outlet) 24.7 Lock screw 24.8 Gasket 32

6 Materials Series 810, 820 Manifold block Materials Item Component Standard 24.1 Manifold block 24.2 Bushing 24.3 Piston 24.7 Lock screw 24.8 Gasket 24.4, 24.5, 24.6 Please notice: Option code Stainless steel Stainless steel O-ring 1) R05 Buna-EP (EPDM Ethylene-Propylene-Dine) * Viton (FKM Fluorocarbon) R06 Kalrez (FFKM Perfluor) Modifications reserved by LESER. LESER can upgrade materials without notice. Every part can be replaced by other material acc. to customer specification. 1) For further soft seal materials refer to page 69 33

Product Description. Product Description. Materials Series 810, 820 Main Valve

Product Description. Product Description. Materials Series 810, 820 Main Valve Main Valve Below is a schematic drawing of the parts layout for the LESER POSV main valve including both the Standard and Extra Orifice designs. For the related parts listing, see opposite page. 55 Stud