Knife Gate Valve

Series SG73-D

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-D

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Specifications

Knife Gate Valve - Series SG73-D

DN
50~2400 (2"~96")
PN
0.6~1.6 (Class150)
Temperature Range
-46°C~850°C
Connection
Wafer
Installation Direction
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-D is a kind of self-sealing knife gate valve, and its two rubber seats clamp the disc to ensure sealing. When the disc is fully opened, the two seats coincide and are close to each other to form a short all-rubber pipe. The internal pressure of the pipe makes the strength and sealing effect better. Meanwhile, the valve is in a fully open state, the disc can be replaced directly, instead of removing the valve to replace the disc and repair it.

  • 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. 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.

  • F. 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.

  • G. Disc

    The lower end of the disc is processed to be thin and sharp, which is easy to cut off viscous medium such as mud and pulp.

  • H. Seat

    The bidirectional thickened rubber seats not only have sufficient sealing, but also is very wear-resistant, suitable for medium with corrosion.

  • 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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