Uniflo Co., Ltd.
5 1

Butterfly Valve High Performance U-500 Series

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Uniflo Co., Ltd.
[Korea]

Address
21, Beonnyeong-ro 82beon-gil, Danwon-gu Ansan-si Gyeonggi-do
Phone
82-31-4981577
Contact name
Seung Yong, Lim

Quick Information

  • Place of Origin: Korea

Description

Butterfly Valve
High-Performance U-500 Series

Features

1. Water & lug bodies butterfly valve for bl-directional dead-end service are offered as standard in full ANSI Class 150 and 300 ratings.
The design of double offset sealing assure smooth low-torque operation and reduce seat wear. Extended neck length allows adequate insulation and is easily accessible for mounting actuators.
2. Valve has a disc stopper to prevent disc overtravel of disc, minimizing possible seat damage with extending the service life of valve operator.
3. The disc has been hydromechanically designed to maximize flow and minimize resistance, providing a high Cv valve. The disc is spherically machined and hand polished disc edge provides bubble-tight shut-off at minimum torque.
4. One piece through stem design achieves high strength and positive disc control optional mounting plate is available to international standard.
Non-lubricated, coated bearings securely support the stem and minimize bearing triction and operating torque.
5. Securing the butterfly disc to the valve shaft and permitting accurate disc closure for consistent sealing and positive shut-off.
6. V-Packings are designed to give excellent resistance to pressure and effective at both low and high pressures with little of no gland adjustment required. Gratoil packings are also available for high temperature applications and are standard on firesafe valve & metal seat.
7. All valve shall be tested for leakage at rated internal pressure and we can accomplish zero defects through a wide range testing process.
8. With a locking spring loaded, lever operator has directional pointer for valve disc position indication with easy-grip hasdle.

Seat Explanation

Soft Seat Material PTFE & RTFE
Blowout Proof Stem Design
Lower Operating Torque
Tight Shut-Off
Bl-Direction Application
Leakage Classs VI(Zero)
Metal Seat Material : 316L & Inconel
Blowout Proof Stem Design
Inherent Fire Safe Design
Sultability for High
Temperature Service
Leakage Class IV, V
Fire Safety Seat Metal & Soft Seat
Blowout Proof Stem Design
Tight Shut-Off
Bl-Direction Application
Inherent Fire Safe Design
Leakage Classs VI(Zero)
During and after a fire, when the soft(Teflon) seat material has burned away,
the metal seat actvates atomatically and prevents excessive flow.
Non-Seat  
Blowout Proof Design
High Temperature Service
Non-Seat or Tadpole Step
Leakage Class II or III

Construction

Size
40A ~1500A (11/2"~60")
Body Material
Carbon Steel , Stainless Steel, etc.
Rating
ANSI 150#, 300#/ DIN 2501 PN 10,16,25,40 (On Request : ANSI 600# / PN 100)
Types of operator
Lever, Gear, Actuator
Seat Material
PTFE / RTFE / PEEK / METAL , etc
Packing
PTFE / Grafoil
Temperature
-196°C , +850°C
End Connnection
WATER, LUG, RF Flange

Applicable Code

ANSI
B16.34
Steel valves
B31.1
Power piping
B31.3
Chemical plant and petroleum refinery piping
B16.47
Large diameter steel flanges
B16.5
Steel pipe flanges and flanges fittings
MSS
SP-6
Standard finishes for pipe flanges
SP-25
Standard marking systems for valves
SP-44
Steel pipe line flanges
SP-55
Quality standard fot steel casting
SP-61
Pressure testing of steel valves
SP-67
Butterfly valves
SP-68
High pressure offset disc butterfly valves
API
609
Butterfly valves
607
Fire test for soft seated quarter-turn valves
598
Valve inspection and test
BS
5146

Inspection and test of steel valves for the petroleum
petrochemical and allied industries

4504
Flanges and bolting for pipes, valve and fittings
ISO
5752
Metal valves for use in flanged pipe systeme
2084
Pipeline flanges for general use
JIS
2215
Basic dimension for steel pipe Flanges

Part Material Standards

1
Body
A216-WCB/A217-WC6/A217-WC9
A352- LCB, LCC
A351-CF8, CF8M, CF3, CF3M
MONEL, INCONEL, ETC.
2
Disc
A351-CF8, CF8M, CF3, CF3M
MONEL, INCONEL, ETC.
Option : Hardfacing / Stelite or ENP
3
Disc Pin
A276-304, 316, A564-630
MONEL, INCONEL, ETC.
4
Stem
A276-304, 316, A564-630
MONEL, INCONEL, ETC.
5
Stem Retainer
A276-304, 316, A564-630
MONEL, INCONEL, ETC.
6
Seat
PTFE/Polytetrafluoroethylene
RTFE/Reinforced, Polytetrafluoroethylene
316 Stainless Steel / ASTM A240-316L
Fire-safe / RTFE / 316 Stainless Steel
MONEL, INCONEL, ETC.
7
Insert Ring
A36, A240-304, 316
MONEL, INCONEL, ETC.
8
Wrench Bolt
304/316, MONEL, INCONEL, ETC.
9
Gland Bridge
Stainless Steel / ASTM A351-CF8
10
Stud Bolt
Stainless Steel / 304/316
11
Gland Bridge
Stainless Steel / 304/316
12
Packing
PTFE or Grafoil , Etc.
13
Packing Retainer
Stainless Steel / 304/316
14
Upper & Lower Bushing
RTFE/ 316 Stainless Steel
MONEL, INCONEL, ETC.
15
Bottom Packing
PTFE or Grafoil , Etc.
16
Bottom Cover
A216-WCB/A217-WC6/A217-WC9
A352- LCB, LCC
A351-CF8, CF8M, CF3, CF3M
MONEL, INCONEL, ETC.
17
Hex. Bolt
Stainless Steel / 304/316

U-501 & 502 Dimension

U-501 & 502 Top View & Stem

U-531 & 532 Dimension

U-531 & 532 Top View & Stem

Cv-Vlaues-Valve Sizing Coeficient

Torque & Pressure

Notch Plate & Top Mounting Dimension

Handle Capacity & Extension Brakets


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