Knife Gate Valve

Series SG73-E

DN
50~2400 (2"~96")
PN
0.6~2.5 (Class150)
Temperature Range
-46°C~850°C
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Knife Gate Valve

Series SG73-E

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Specifications

Knife Gate Valve - Series SG73-E

DN
50~2400 (2"~96")
PN
0.6~2.5 (Class150)
Temperature Range
-46°C~850°C
Connection
Flanged
Installation Direction
Unidirectional, Bidirectional
Design
JB/T8691
Face to Face
GB/T15188
Flange Drilling
GB/T9113, ASME B16.5, EN1092, GOST12820, GOST33259, DIN2501
Top connection
ISO5211, GOST55510
Inspection
GB/T13927, ISO5028, API598, JB/T9092
Body Materials
WCB, LCC, LC1, C5,WC6, CF8, CF8M, 321, 316Ti, 904L, 310S, Duplex Stainless Steel
Disc Materials
304, 316, 304L, 316L, 321, 316Ti, 904L, 310S, Duplex Stainless Steel
Stem Materials
420, 431, 304, 316, 316L, 321
Seat Materials
EPDM, NBR, NR, SBR, PTFE, Viton, MVQ, 420, Stellite alloy, Polyurethane, Ceramics

Features & Benefits

SG73-E is a kind of structure where the gate is hidden inside the body. The upper seal is composed of stem, packing, and cover, which allows a longer service life. The internal seal can be made of a movable seat, which can be disassembled and replaced on site once it is worn out. The wedge block is installed on the gate, and the wedge block on both sides of the body forms a reliable auxiliary sealing structure, which greatly improves the sealing performance and pressure bearing capacity of the valve.

  • A. Handwheel

    The ductile iron handwheel is more durable. The right size makes the handwheel rotate more labor-saving.

  • B. Stem Bushing

    The stem bushing acts as a support for the handwheel and drives the stem to rotate through the internal thread to lift the disc. Bronze and steel can be selected by requirements.

  • C. Bearing

    Bearing can be selected for the big size of knife gate valve to reduce the opening & closing torque.

  • D. Stem

    Different materials can be selected according to the working conditions. Hardness and corrosion resistance are the primary considerations.

  • E. Gland

    The gland effectively protects the internal packing, thus preventing the medium leaking out from the stem. Also, it can be opened and then the packing can be replaced in time to solve the problem of leakage from the stem.

  • F. Cover&Body

    The design of the body and cover greatly improves the overall pressure bearing capacity of the valve, ensuring that the packing is well sealed and there is no leakage in the high-pressure pipeline.

  • G. Disc

    In order to cope with higher pressure, the disc can be thickened by requirements.

  • H. Body

    The thickness of the body is thicker than that of ordinary knife gate valves, and there are multiple reinforcement designs that can withstand higher pipeline pressure.

  • I. Seat

    Resilient seat and metal seat can be selected according to the medium.

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