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Double Flanged Butterfly Valve(DI/Al-bronze/EPDM)

Double Flanged Butterfly Valve(DI/Al-bronze/EPDM)

Nominal Diameter DN50 ~ DN600
Pressure Rating PN10/16 (Class 150) · PN25 (Optional)
Temperature Range -30°C to +120°C (EPDM Seat)
Leakage Class ANSI Class VI (ISO 5208 Grade A)
Connection Type Double Flanged (RF Facing per ASME B16.5)
Actuator Mounting ISO 5211 F05-F14

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Description

Double Flanged Butterfly Valve – Technical Datasheet

Model: D341X-16C-DIAB
設計基準: API 609 · EN 593 · MSS SP-67
構成: Ductile Iron Body · C95400 Disc · SS416 Stem · EPDM Seat
対面: EN 558 Series 13/14 (Selectable)

  1. Product Overview

Feature

仕様

Nominal Diameter

DN50 ~ DN600

圧力定格

PN10/16 (Class 150) · PN25 (Optional)

Temperature Range

-30°C to +120°C (EPDM Seat)

漏れクラス

ANSI Class VI (ISO 5208 Grade A)

Connection Type

Double Flanged (RF Facing per ASME B16.5)

Actuator Mounting

ISO 5211 F05-F14

  1. Material Specifications

Component

Material Standard

Key Properties

体

Ductile Iron EN-GJS-500-7

Epoxy Coated (250μm) · Impact 20J @ -20°C

ディスク

Al-Bronze UNS C95400

Hardness 170-210 HB · Cavitation Resistant

幹

AISI 416 Stainless

HRC 35-40 · Yield Strength ≥550 MPa

シート

EPDM Vulcanized to SS304

FDA 21 CFR 177.2600 · Ozone Resistant

Fasteners

A2-70 Stainless Steel

ISO 3506 Class 70

III. Face-to-Face Dimensions (mm)

DN

Series 13

Series 14

Flange Thickness

50

38

43

16

100

43

52

20

200

46

56

24

400

53

70

30

600

70

90

38

  1. Performance Data

パラメータ

Test Standard

Value

Shell Strength

EN 12266

2.4 MPa @ 30min (PN16)

シート漏れ

ISO 5208 グレードA

0 bubbles/min (ANSI VI)

Cv Value (DN200)

ISA S75.01

1,150

Operating Torque

MSS SP-67

85 Nm (DN100) · 240 Nm (DN300)

Cycle Life

ISO 15848-1

>100,000 cycles (water)

  1. Material Advantages
  2. C95400 Disc
  • Saltwater corrosion rate: 0.025 mm/yr (ASTM G44)
  • 3× better cavitation resistance vs. 316SS
  • NACE MR0175 compliant for sour service (<50 ppm H₂S)
  1. SS416 Stem
  • Wear-resistant machined surface (Ra ≤0.8μm)
  • Double O-ring seals (Viton®) + grease reservoir
  1. EPDM Seat
  • 35% compression recovery rate (ASTM D395)
  • Withstands glycol mixtures up to 50%
  1. Design Features
  • Disc Assembly: Monolithic C95400 casting with integral hubs
  • Stem Protection: Anti-blowout design + dual bearing support
  • Seat System:
    • Bi-directional sealing with dual-lip EPDM
    • SS304 carrier with vulcanized bonding (≥5 MPa)
  • Fire-Safe Option: Secondary metal seal (SS410 + Flexible Graphite)

VII. Series 13 vs. Series 14 Selection Guide

パラメータ

Series 13 (Short)

Series 14 (Standard)

Space Saving

★★★★★ (30% shorter)

★★★☆☆

Thermal Expansion

Max. ΔL=3mm/m

Max. ΔL=5mm/m

Angular Misalignment

≤1°

≤2°

Recommended Use

Compact installations

High-temperature pipelines

Maintenance

Disc removal space reduced

Full access to seat cavity

VIII. Certifications & Compliance

標準

Certification

Component

材料

EN 10204 3.1

Body/Disc/Stem

Potable Water

NSF/61 · WRAS

EPDM Seat

Marine

DNV-GL TA-LF

Full Assembly

Fire Safety

API 607 (Optional)

Secondary Seal

Corrosion

ISO 9227 Salt Spray 1,000hrs

Epoxy Coated Body

  1. アプリケーション

Industry

Service

Optimal Series

Marine

Ballast water · Seawater cooling

Series 14

HVAC

Chilled water · Glycol circuits

Series 13/14

Power Generation

Cooling towers · Condensate

Series 14

Water Treatment

Potable water · Chemical dosing

Series 13

Engineering Notes:

  1. Series 13 Limitation: Not recommended for >120°C service or DN≥500 valves
  2. Galvanic Protection: Use dielectric kits when connecting to carbon steel piping
  3. Disc Maintenance: Field-polish with 400-grit max to preserve corrosion resistance
  4. Seat Replacement: Requires valve removal – Series 14 allows in-line servicing

保証:

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