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125Lb Bronze Seated Swing Check Valve-MSS SP-71

125Lb Bronze Seated Swing Check Valve-MSS SP-71

Valve Type Swing Check
Body Material Cast Iron (ASTM A126 Class B) / Ductile Iron (ASTM A536)
Disc Material Cast Iron / Ductile Iron
Seat Material Bronze Alloy (e.g., ASTM B62 C83600)
Connection Type Flanged
Flange Standard ASME B16.1 (Cast Iron) / ASME B16.5 (Class 125/150)
Pressure Rating Class 125 / Class 150
Temp. Range -10°C to +200°C
Media Water, Steam, Oil, Gas, other non-corrosive fluids

  • aboutimg1
  • Description

    Technical Data Sheet: Bronze Seated, Cast Iron Body, Swing Check Valve

    Product: Bronze Seated, Cast Iron Body, Swing Check Valve
    Model: H71X-16 / H71W-16 | Design Std: MSS SP-71, API 594, ASME B16.34 | Connection: Flanged

    Overview:
    A swing check valve designed to prevent reverse flow in pipelines. The cast iron body offers high strength, while the bronze sealing surfaces provide excellent corrosion resistance and durability, ensuring reliable, long-term sealing performance in demanding applications. Features a compact design, low flow resistance, and smooth operation. Ideal for water supply, drainage, fire protection, HVAC, and general industrial services.

Key Specifications:

パラメータ

仕様

バルブタイプ

Swing Check

ボディ素材

Cast Iron (ASTM A126 Class B) / Ductile Iron (ASTM A536)

Disc Material

Cast Iron / Ductile Iron

Seat Material

Bronze Alloy (e.g., ASTM B62 C83600)

Connection Type

Flanged

Flange Standard

ASME B16.1 (Cast Iron) / ASME B16.5 (Class 125/150)

圧力定格

Class 125 / Class 150

Temp. Range

-10°C to +200°C

Media

Water, Steam, Oil, Gas, other non-corrosive fluids

Design & Features:

  • Construction: Single-disc, swing-type design with a lever arm mechanism.
  • Flow Path: Full bore or reduced bore design with a streamlined flow passage for low pressure drop.
  • Sealing: Bronze seat ring mates with the metal disc for reliable, wear-resistant, and galling-resistant sealing.
  • 手術: Automatic opening by media flow pressure; automatic closing by disc weight and backflow.
  • Installation: Must be installed in a horizontal line with the pivot pin horizontal.

Principal Dimensions & Weights (Class 150, Typical):

NPS

L (mm)

H (mm)

Flange OD (mm)

Bolt Circle (mm)

Bolt Holes (n x φ)

~Weight (kg)

2″

203

115

120

92.1

4 x 19

8

3″

216

140

152

120.7

4 x 19

12

4″

254

175

190

152.4

8 x 19

22

6″

356

250

279

241.3

8 x 22

45

8″

495

340

343

298.5

8 x 22

85

10″

622

430

406

362.0

12 x 25

135

12″

698

510

483

431.8

12 x 25

200

Testing & Inspection:

  • Shell Test: Per API 598 / MSS SP-71 @ 1.5 x PN, no leakage.
  • Seat Test: Per API 598 / MSS SP-71 @ 1.1 x PN, no leakage.

 

保証

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