Emerson GRW, GRL Specifications

KEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY VALVES

GRW/GRL (ISO)

A heavy duty industrial resilient seated butterfly valve

GENERAL APPLICATION

Water, air, dry bulk conveying etc. These valves are for any service where a drop-tight shut-off with maximum flow area is required.

TECHNICAL DATA

Sizes: DN 20 - 900 Pressure: 16 bar DN 20 - 300 10 bar DN 350 - 900 Reinforced seat: 16 bar DN 350 - 600 End of line: 10 bar DN 20 - 300 6 bar DN 350 - 900 Reinforced seat: 10 bar DN 350 - 600 Vacuum service: 0.4 bar Temperature: -28°C to +160°C Flange accommodation: PN 6/10/16 ASME 125/150 JIS 10K JIS 16K BS Table E AS4087 PN 16 AS2129 Table E

FEATURES

• Wafer and lugged body design with face-to-face dimension, according to EN 558 Series 20 and API 609.

• Designed according to EN 593 and API 609.

• The seat is field replaceable and fully isolates the body and shaft from the flow.

• Primary shaft sealing exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere.

• A secondary shaft sealing provides back-up safety.

• A molded-in O-ring in the seat for flange sealing eliminates the need for gaskets.

• Shaft seals prevent moisture penetrating into the shaft area.

• The two piece shaft allows for a thin disc and provides minimal obstruction to flow (up to DN 300).

• Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and drop-tight shut-off.

• Body locating holes allow ease of installation and centering between the flanges.

• Extended body neck allows for pipe insulation.

• Actuator flange according to ISO 5211.

• Top and bottom shaft bearings for optimized support and minimum friction and decreased torque.

• Top bushing absorbs actuator side thrust loads.

• All valves comply to Pressure Equipment Directive (2014/68/EU) Module B + D, CE Marking.

• Available approvals: NSF/ANSI 61, ACS, KIWA, WRAS, DVGW-G, ABS, CU-TR.

• Sizes DN 20 up to DN 40 might deviate from the above mentioned features. Please contact factory.

Emerson.com/FinalControl VCTDS-06268-EN 21/03

KEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY VALVES

GRW/GRL (ISO)

SERIES GRW/GRL

DN 50-300 (GRW SHOWN)

PARTS LIST

Item Qty Description

1 1 Body 2 1 Seat 3 1 Disc 4 1 Upper shaft 5 1 Lower shaft 6 1 Upper bushing 7 1 Packing 8 1 Body circlip 9 1 Shaft circlip 10 2 Upper and lower bearing 11 1 Plug

DN 350-900 (GRL SHOWN)

PARTS LIST

Item Qty Description

1 1 Body 2 1 Seat 3 1 Disc 4 1 Shaft 5 1 Bushing 6 1 Shaft circlip 7 1 Body circlip 8 1 Body O-ring 9 1 Shaft O-ring 10 1 Disc screw 11 1 Disc screw O-ring 12 4 Upper and lower bearing 13 1 Plug 14 1 Plug O-ring 15 1 Plug circlip

KEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY VALVES

GRW/GRL (ISO)

MATERIAL SPECIFICATION (DN 20-300)

Part name Material Designation EN/DIN mat.no Remark DN 20-40

Body Ductile iron GJS-400-15 EN JS-1030 Disc Stainless steel GX5CrNiMo19-11-2 EN 1.4408 Comparable with CF8M Shaft Stainless steel X17CrNi16-2 EN 1.4057 Similar to ASTM A276/Gr. 431 Seat EPDM

NBR EPDM-A EPDM-WA3

DN 50-300

Body Ductile iron GJS-400-15 EN JS-1030 Dual certified to ASTM A536-65-45-12

Ductile iron GJS-400-18LT EN 5.3103 Dual certified to ASTM A395-60-40-18 Carbon steel GP240GH EN 1.0619 Stainless steel GX5CrNiMo19-11-2 EN 1.4408

Disc Super duplex GX2CrNiMoN26-7-4 EN 1.4469

316 stainless steel GX5CrNiMo19-11-2 EN 1.4408 Comparable with CF8M 304 stainless steel GX5CrNiMo19-10 EN 1.4308 Comparable with CF8 Aluminium bronze CuAl10Fe2-C EN CC331G Nickel aluminium bronze CuAl10Fe5Ni5 EN CC333G Ductile iron NYL GJS-400-15 EN JS-1030 NYL = Nylon coating, max. temp. 60°C Ductile iron CTD GJS-400-15 EN JS-1030 CTD = Nickel plating

Shaft 316 stainless steel X5CrNiMo17-12-2 EN 1.4401

431 stainless steel X17CrNi16-2 EN 1.4057 Super duplex GX2CrNiMoN25-7-4 EN 1.4410

Monel

K500 DIN 17752 EN 2.4375

Seat EPDM Food grade, NSF/ANSI 61, ACS

EPDM E5 KIWA, WRAS, ACS NBR Food grade NBR N7 DVGW-G HNBR White NBR FKM

Neoprene Bushing Polyester Packing NBR Bearing PTFE/steel Circlip Stainless steel Plug Carbon steel

NOTES

Valves with super duplex disc will have super duplex disc screw. All other discs will have a duplex disc screw.

Monel

is a registered trademark of Special Metals Corporation.

KEYSTONE SERIES GR RESILIENT SEATED BUTTERFLY VALVES

GRW/GRL (ISO)

MATERIAL SPECIFICATION

Part name Material Designation EN/DIN mat.no Remark DN 350-900

Body Ductile iron GJS-400-15 EN JS-1030 Dual certified to ASTM A536-65-45-12

Disc Super duplex GX2CrNiMoN26-7-4 EN 1.4469

Shaft 431 stainless steel X17CrNi16-2 EN 1.4057 Similar to ASTM A276/Gr. 431

Seat EPDM Food grade, NSF/ANSI 61, ACS

Disc screw Super duplex GX2CrNiMoN25-7-4 EN 1.4410

Disc screw O-ring EPDM

Plug Carbon steel Plug O-ring NBR Plug circlip Stainless steel Bushing Polyester Shaft/Body O-ring NBR Bearing PTFE/steel Shaft/Body circlip Stainless steel

* Carbon steel and stainless steel body material options are available up to and including DN 600

Ductile iron GJS-400-18LT EN 5.3103 Dual certified to ASTM A395-60-40-18

Carbon steel* GP240GH EN 1.0619

Stainless steel* GX5CrNiMo19-11-2 EN 1.4408

Super duplex GX2CrNiMoN26-7-4 EN 1.4469

Duplex GX2CrNiMoN22-5-3 EN 1.4470

316 stainless steel GX5CrNiMo19-11-2 EN 1.4408 Comparable with CF8M

304 stainless steel GX5CrNiMo19-10 EN 1.4308 Comparable with CF8

Aluminium bronze CuAl10Fe2-C EN CC331G

Nickel aluminium bronze CuAl10Fe5Ni5 EN CC333G Comparable with BS 1400 AB2

Ductile iron NYL GJS-400-15 EN JS-1030 NYL = Nylon coating, max. temp. 60°C

Ductile iron CTD GJS-400-15 EN JS-1030 CTD = Epoxy coated, max. temp. 120°C

Duplex X2CrNiMoN22-5-3 EN 1.4462

Super duplex X2CrNiMoN25-7-4 EN 1.4410

K500 DIN 17752 EN 2.4375

Monel

EPDM E5 KIWA, WRAS, ACS

NBR Food grade

NBR N7 DVGW-G

HNBR

FKM

Duplex X2CrNiMoN22-5-3 EN 1.4462

NBR

FKM

MATERIAL SPECIFICATION - REINFORCED SEAT

Part name Material Designation EN/DIN mat.no Remark DN 350-600

Body Ductile iron GJS-400-15 EN JS-1030 Dual certified to ASTM A536-65-45-12

Disc Stainless steel GX5CrNiMo19-11-2 EN 1.4408 Comparable with CF8M

Shaft 431 Stainless steel X17CrNi16-2 EN 1.4057 Similar to ASTM A276/Gr. 431

Seat EPDM E6

Disc screw Duplex X2CrNiMoN22-5-3 EN 1.4462 Disc screw O-ring NBR Plug Carbon steel Plug O-ring NBR Plug circlip Stainless steel Brushing Polyester Shaft/body O-ring NBR Bearing PTFE/steel Shaft/body circlip Stainless steel

NOTES

Valves with super duplex disc will have super duplex disc screw. All other discs will have a duplex disc screw.

is a registered trademark of Special Metals Corporation.

Monel

Ductile iron GJS-400-18LT EN 5.3103 Dual certified to ASTM A395-60-40-18

Carbon steel GP240GH EN 1.0619

Stainless steel GX5CrNiMo19-11-2 EN 1.4408

Super duplex GX2CrNiMoN26-7-4 EN 1.4469

Duplex GX2CrNiMoN22-5-3 EN 1.4470

Nickel aluminium bronze CuA10Fe5Ni5 EN CC333G Comparable with BS 1400 AB2

Ductile iron CTD GJS-400-15 EN JS-1030 CTD = Epoxy coated, max. temp. 120°C

Super duplex X2CrNiMoN25-7-4 EN 1.4410

NBR N8

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