**Basic Specifications of Butterfly Valves**
- **Model No.:** DN50 to DN600
- **Connection Type:** Flanged
- **Sealing Type:** Force Sealed
- **Working Pressure:** Low Pressure (Pn < 1.6MPa)
- **Seal Material:** Metal Hard Sealed
- **Application:** Suitable for industrial and water supply systems
- **Ductile Iron Butterfly Valve:** D.I. Disc made from ASTM A536 65-45-12 Ggg40
- **Stainless Steel Butterfly Valve:** S.S. Disc made from ASTM A351 CF8/CF8m
- **Size Range:** DN50 to DN1000, 2" to 40"
- **HS Code:** 8481804090
- **Drive Type:** Manual
- **Structure:** Center Sealing
- **Valve Stem:** Standard
- **Operating Temperature:** Normal (-40°C < T < 120°C)
- **Valve Body:** Cast
- **Cast Iron Butterfly Valve:** C.S. Disc with ASTM A216 Wcb
- **Carbon Steel Butterfly Valve:** C.S. Disc with ASTM A216 Wcb
- **Brand:** "LF" Brand - Ductile Iron, Cast Iron, Stainless Steel, Carbon Steel Butterfly Valves
- **Origin:** China
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**Product Overview**
This range of butterfly valves is designed for a wide variety of industrial applications, especially in water supply systems. Available in multiple materials including Ductile Iron (D.I.), Cast Iron (C.I.), Carbon Steel (C.S.), and Stainless Steel (S.S.), these valves are suitable for both low-pressure and high-performance environments.
**Key Features:**
- **Material Options:** D.I., C.I., C.S., S.S.
- **Standards:** DIN and ASTM compliant
- **Connection:** Flange
- **Size Range:** From DN50 up to DN1000 or 2" to 40"
- **Pressure Rating:** 1.0 MPa and 1.6 MPa (PN16)
- **Color Options:** Black, Grey, Blue
**Construction Details:**
- **Ductile Iron Body:** ASTM A536 65-45-12 GGG40
- **Ductile Iron Disc:** ASTM A536 65-45-12 GGG40
- **Stainless Steel Stem:** ASTM A182 304, 316, 410
- **Bushing:** PTFE
- **Seat Materials:** EPDM, NBR, PTFE, VITON
**Cast Iron Body:**
- ASTM A126 CL.B GG25
- **Disc:** ASTM A216 WCB
- **Stem:** ASTM A182 304, 316, 410
- **Bushing:** PTFE
- **Seat:** EPDM, NBR, PTFE, VITON
**Carbon Steel Body:**
- ASTM A216 WCB
- **Disc:** ASTM A216 WCB
- **Stem:** ASTM A182 304, 316, 410
- **Bushing:** PTFE
- **Seat:** EPDM, NBR, PTFE, VITON
**Stainless Steel Body:**
- ASTM A351 CF8/CF8M
- **Disc:** ASTM A351 CF8/CF8M
- **Stem:** ASTM A182 304, 316, 410
- **Bushing:** PTFE
- **Seat:** EPDM, NBR, PTFE, VITON
These valves are ideal for use in water treatment plants, chemical processing, and other industrial settings where durability, reliability, and performance are essential. High-quality materials and precise manufacturing ensure long service life and minimal maintenance.
[Image: Cast Iron Butterfly Valve Level]
[Image: Cast Iron Butterfly Valve Level]
[Image: Cast Iron Butterfly Valve Level]
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