Ball valves
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for liquid ABOUT US media CHSGS Ltd. - as part of LD GROUP - is a leading Russian manufacturer of steel valves for district heating/cooling, natural gas, petroleum products and chemical industry. Established in 2002, the plant produces and distributes 1 100 000 items per year. Today, LD is a famous quality mark recognized not only in Russia and CIS countries but also in Armenia, Azerbaijan, Belarus, Bulgaria, Estonia, Finland, Hungary, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldavia, Mongolia, Poland, Romania, Serbia, Slovakia, Sweden, Ukraine, Uzbekistan. We comply with all necessary...

LD ball valve major features: • DN 15 – 800, PN up to 40 bar • Working media temp. -40C (-60C) to +200C, ambient temp. -40C (-60C) to +80C Materials: • carbon steel (Steel 20, 1.1151) for district heating/cooling, oil and gas (climate class N) • alloyed steel (09G2S) for district heating/cooling, oil and gas (climate class NF) • stainless steel (AISI 321, 1.4541) for utility water, non-aggressive media • stainless steel (AISI 321, 1.4541) for chemical industry (aggressive media) • Tightness A rate acc. to EN12266-1 • Service life 30 years (10 000 cycles) • Wa

LD BALL VALVE CONSTRUCTION for liquid AND MATERIALS OF MAIN PARTS media LD BALL VALVE CONSTRUCTION 3 - Disc spring 4 - L-shaped back-up ring 5 - Ball seal 14 - Additional sealing by FVMQ ring MATERIALS OF MAIN PARTS Climate class N Material code No. Steel grade Carbon steel Alloyed steel Stainless steel Stainless steel District heating/cooling, oil and oil products Utility water, non-aggressive media Chemical industry aggressive media District heating/cooling, oil and oil products Carbon steel Alloyed steel Carbon steel Alloyed steel Carbon steel Alloyed steel Disc spring Zinc plated spring...

BALL VALVE REDUCED BORE FLANGE/FLANGE MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Ball sealing: PTFE+C with additional sealing made of FVMQ OPERATION Connection dimensions acc. to DIN (EN) / GOST on request • DN 15-250: lever – painted carbon steel with polymer end • DN 200-250: ISO top flange for manual gear on default • DN 300-800: manual gearbox on default Gearbox in horizontal arrangement on default *To be supplied with a gearbox on...

BALL VALVE FULL BORE Design of DN 350-700 FLANGE/FLANGE MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Ball sealing: PTFE+C with additional sealing made of FVMQ OPERATION Connection dimensions acc. to DIN (EN) / GOST on request • DN 15-200: lever – painted carbon steel with polymer end • DN 150-200: ISO top flange for manual gear on default • DN 250-700: manual gearbox on default Gearbox in horizontal arrangement on default *To be supplied...

BALL VALVE REDUCED BORE WELD/WELD Design of DN 15-300 MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Ball sealing: PTFE+C with additional sealing made of FVMQ OPERATION Connection dimensions acc. to DIN (EN)/ GOST on request • DN 15-250: lever – painted carbon steel with polymer end • DN 200-250: ISO top flange for manual gear on default • DN 300-800: manual gearbox on default Gearbox in horizontal arrangement on default *To be supplied with...

BALL VALVE FULL BORE Design of DN 350-700 WELD/WELD MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Ball sealing: PTFE+C with additional sealing made of FVMQ OPERATION Connection dimensions acc. to DIN (EN)/ GOST on request • DN 15-250: lever – painted carbon steel with polymer end • DN 150-200: ISO top flange for manual gearbox with worm gear installation • DN 250-700: manual gearbox on default Gearbox in horizontal arrangement on default *To...

SERVICE LIFE 25 YEARS OR 10 000 CYCLES BALL VALVE FULL BORE MODERNIZED MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Thread: straight pipe thread Ball sealing: PTFE+C with additional sealing made of FVMQ OPERATION Connection dimensions acc. to DIN (EN)/ GOST on request • DN 15-100: lever – painted carbon steel with polymer end

BALL VALVE THREAD/THREAD MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Thread: straight pipe thread OPERATION • DN 15-100: lever – painted carbon steel with polymer end Gearbox in horizontal arrangement on default TECHNICAL DATA FOR REDUCED BORE DN TECHNICAL DATA FOR FULL BORE DN

SERVICE BALL VALVE COMBINED (THREAD/WELD) MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Thread: straight pipe thread OPERATION Welding end acc. to DIN (EN) / GOST on request • DN 15-100: lever – painted carbon steel with polymer end

BALL VALVE REDUCED BORE COMBINED (FLANGE/WELD) MATERIAL SPECIFICATION (Mat. code 02) Body: carbon steel Stem: stainless steel AISI 420 (X20Cr13) Ball: stainless steel AISI 304, AISI 409 Stem sealing: EPDM, FVMQ Stem sealing/washer: PTFE+C, PTFE Ball sealing: PTFE+C with additional sealing made of FVMQ OPERATION Connection dimensions acc. to DIN (EN) / GOST on request • DN 15-250: lever – painted carbon steel with polymer end • DN 125-250: manual gearbox with worm gear recommended Gearbox in horizontal arrangement on default