Dec. 02, 2024
Flange butterfly valve are versatile, reliable, and cost-effective solutions for numerous industrial applications, providing superior flow regulation and throttling capabilities. In this guide, we will walk you through the main features of these valves, their proper installation and operation, maintenance, troubleshooting, and much more. Rest assured that by the end of this guide, you will have an in-depth understanding of U style flanged butterfly valves and their applications.
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Wafer butterfly valve are suitable for various fluids, including:
U style flanged butterfly valve are the perfect solution for any application requiring precise flow regulation and throttling. This full-ported valve provides continuous fluid flow with minimal pressure drop, offering superior performance. The two-piece construction and rotatable disc allow for precise control over the flow rate. The lightweight, compact design is easy to install between flanges and requires minimal maintenance. lug butterfly valve offer a cost effective solution compared to other options on the market today &#; invest in quality today for reliable and long lasting performance! Upgrade your system now and choose a U style flanged butterfly valve.
FEATURES
TECHNICAL DATA
Body style Flange Nominal diameter 2&#; &#; 88&#; (DN50mm &#; DNmm) Top flange ISO Operating pressure 16bar for DN50-DN300, 10bar for DN350-DN Temperature range -20 °C to + 140 °C (depending on pressure, medium and material) Flange accommodation EN PN 6/PN10/PN16A butterfly valve, an integral component within the realm of valve technology, is specifically engineered for regulating or isolating fluid flow. This sophisticated piece of equipment owes its name to the butterfly disc, the pivotal element that rotates to enable a swift and efficient control of flow.
Primarily, butterfly valves are employed in wide-ranging industrial applications such as water supply, wastewater treatment, fire protection, and power generation, underscoring their versatility and reliability. They are also utilized in high-pressure and high-temperature systems owing to their robust design and superior sealing capabilities.
These valves offer distinct advantages over gate valve, including a compact footprint, lower installation costs, and minimal maintenance requirements. Moreover, they are celebrated for their ability to provide a nearly unrestricted flow of fluid, resulting in lower pressure drop and increased energy efficiency.
The U-style flange butterfly valve, often referred to as a wafer butterfly valve, is lauded for its streamlined design and versatility. The &#;U&#; in its moniker represents the U-shaped seal ring, an innovative feature that mitigates potential leakages and guarantees optimal performance even under extreme operational conditions. This valve&#;s ability to be installed between two pipeline flanges, offering bi-directional flow and shut-off control functionality, is a testament to our technical ingenuity. Its lightweight nature, ease of installation, and cost-effectiveness underscore its global acceptance across diverse industry sectors.
Contrastingly, the regular flange butterfly valve, also known as a lug butterfly valve, is defined by its robust construction and unparalleled durability. Unlike its U-style counterpart, this valve boasts a lug body with threaded inserts at both ends. This allows the valve to be securely installed into a system using two sets of bolts without the need for nuts. This meticulously engineered design allows for disconnection on either side of the piping system without disrupting the opposing side. Consequently, it is exceptionally suited for managing higher pressure systems and end-of-line applications.
One of the key standards for U-style flange butterfly valves is the EN593, which stipulates the requirements for their design, face-to-face dimensions, pressure ratings, materials, and testing procedures. In addition, the AWWA C504 standard also applies, particularly in terms of life expectancy, laying length, and pressure handling capabilities.
Moreover, these valves are designed to comply with MSS SP-67, API 609, and BS regulations, which outline the specifications for butterfly valves used in pipeline systems. They also adhere to the ANSI B16.1, DIN PN10/16/25, BS, and ISO PN10 standards for flange connections
In the vast domain of valve manufacturing, butterfly valves are a cornerstone, renowned for their efficiency, versatility, and compact design. Utilizing our industry-specific expertise and globally recognized certifications, we have developed an array of butterfly valves, each tailored to cater to distinct application needs with precision and reliability.
Features:
1. Small in size, light in weight, easy installation and maintenance.
2. Simple and compact construction, quick 90 degree on-off operation.
3. Minimized operating torque, energy saving.
4. Flow curve tending to straight line, excellent regulation performance.
5. Long service life, standing the test of tens thousands opening/closing operations.
6. Wide selection of materials, applicable to various medium.
Performance:
Nomnal pressue (MPa)
1.0
1.6
Nominal diameter(mm)
50-
50-
Test pressure
Shell
1.5
2.4
(MPa)
Seal
1.1
1.76
Applicable temperature
150
Applicable medium
Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids,
Alkalis, etc.
Operating mode
manual, worm gear, pneumatic, electric, etc.
Standard:
Design & Manufacture
Flange Connection
Face to Face Dimension
Test & Inspection
MSS SP-67
API609
EN593
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DIN PN10/16/25; ANSI B 16.1
BS; ISO PN10/16
JIS B /
BS 10 table D; BS 10 table E
API609
ISO series 20
BS
API 598
Material List:
No.
Part Name
Material
1
Body
Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze
2
Disc
Al-Bronze/CF8M/Ductile iron/WCB
3
Seat
EPDM/PEFE/Buna/NBR/Hypalon
4
Stem
Carbon Steel/Stainless Steel314/Stainless Steel316
5
Bushing
PTFE/Lubricating
6
O ring
EPDM/PEFE/Buna/NBR/Hypalon
7
Pin
SS316/SS416/SS304
STANDARD MATERIALS OF MAIN PARTS
ITEM PART NAME MATERIAL 1 Body CI/DI/CS/SS 2 Seat EPDM/PTFE/VITON/NBR/Hypalon 3 Shaft SS416/316/304/CS 4 Disc CF8/CF8M/DI+Ni/SS304 5 Pin SS 6 Bushing PTFE/Bronze 7 O Ring NBR/EPDMDIMENSIONS:(mm)
What a U type butterfly valve&#;
U type butterfly valve are similar to flange butterfly valves, with a more compact structure and easier installation. Suitable for use in environments with compact space and closer pipelines.
It not only has a simple structure, small size, light weight, low material consumption, small installation size, small driving torque, easy and rapid operation, but also has good flow adjustment function and closing sealing characteristics at the same time.
U-type butterfly valves are commonly used in applications where space is limited, such as:
Piping systems with limited clearance or headroom
Retrofit installations in existing piping layouts
Skid-mounted or compact process equipment
Offshore platforms or marine applications with space constraints
These valves are available in various materials like carbon steel, stainless steel, and special alloys, depending on the service conditions and media being handled. They can be manually operated or fitted with actuators for automated control.
DN50-DN,2"-48"
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