Knife Gate Valve

Series SG73-C

DN
50~2400 (2"~96")
PN
0.6~1.6 (Class150)
Temperature Range
-46°C~850°C
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Knife Gate Valve

Series SG73-C

Specifications

Knife Gate Valve - Series SG73-C

DN
50~2400 (2"~96")
PN
0.6~1.6 (Class150)
Temperature Range
-46°C~850°C
Connection
Wafer
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-C is a kind of valve where the disc and the seat are always in close contact and sealed. The principle is that there is a round hole on the disc, whose size is as same as the bore. Through the opening and closing of the disc, the round hole on the disc is completely detached from and coincides with the flow channel of the body. The gap between the valve chamber and the disc is small, and the medium will not stay in the valve chamber as the disc moves.

  • A. Handwheel

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

  • B. Connection

    Platform under actuator can be customized according to requirements., which allows to install electric/pneumatic actuators by different standards.

  • C. Stem

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

  • D. Packing

    Rubber and nylon packing material can effectively enhance the sealing between the gland and disc. Different materials can be selected according to the medium.

  • E. Yoke

    The yoke is composed of thickened steel plates, which is enough to support the disc, platform, and actuator.

  • F. Disc

    There is a round hole on the disc, and its size is as same as the bore. Through the opening and closing of the disc, the round hole on the disc is completely detached from and coincides with the flow channel of the body, and it has the characteristic of cutting off viscous medium.

  • G. Body

    There is no groove in the flow channel of the body, so the medium will not get stuck and clogged. And it has the characteristics of full-diameter flow, which is suitable for the pipeline of powder granular medium. Different materials can be selected according to the working condition. Two-piece structure is available as requested.

  • H. Seat

    The seat is designed as a replaceable structure, which has anti-wear and automatic compensation functions, so it has a longer life span. During the opening and closing process of the disc, the seat is close to the disc to ensure stable opening and closing, and the viscous medium can also be scraped off.

  • I. Bottom Cover

    The design of the bottom cover can enable the disc to bring out the dirt in the pipeline and clean up the inside of the body in time.

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