Standard Seal

Series SD41

DN
15~600 (1/2"~24")
PN
0.6~1.6 (Class150)
Temperature Range
-46°C~180°C
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Standard Seal

Series SD41

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Specifications

Standard Seal - Series SD41

DN
15~600 (1/2"~24")
PN
0.6~1.6 (Class150)
Temperature Range
-46°C~180°C
Connection
Flanged
Installation Direction
Bidirectional
Design
GB/T12239, BS5156
Face to Face
GB/T12221, BS5156, ISO5752, EN558, DIN3202
Flange Drilling
GB/T9113, ASME B16.5, EN1092, GOST12820, GOST33259, DIN2501, ISO2084
Top connection
ISO5211, GOST55510
Inspection
GB/T13927, ISO5028, API598, JB/T9092, BS5156
Body Materials
GGG40, WCB, CF8, CF8M
Diaphragm Materials
11R, NR, NBR, EPDM, CR, FPM, FEP, PFA
Stem Materials
420, F6a, F304, F316
Seat Materials
GGG40, WCB, CF8, CF8M

Features & Benefits

SD41 has small fluid resistance and can be used in medium containing hard suspended solids, corrosive and viscous slurry. Since the medium is only in contact with the body and diaphragm, there is no packing gland, and no leakage and corrosion from the stem part.

  • 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 cast iron can be selected by requirements.

  • C. Stem

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

  • D. Diaphragm

    It separates the inner cavity of the lower body and the upper bonnet, so that the stem, bonnet and other parts above the diaphragm can be protected from corrosion of the medium. Fluoroplastic and rubber can be selected according to the medium.

  • E. Body

    Its simple structure, good sealing, corrosion resistance, and small fluid resistance make it more widely used in low-pressure, highly corrosive medium, and even those containing suspended matter. The body can be cast or welded，and the face-to-face dimension can be customized by requirements.

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