The elastic soft sealing line supporting ear Butterfly
Product features
The elastic soft seal all such as valve body midline supporting ear butterfly valve, valve plate valve finishing, torque is small, EBRO valve made of ` ` ` ` ` ` ` ` principle block design, parts interchangeability, maintenance-free, installed at any angle;
The valve body has a multilayer finishing groove of the sealing ring can prevent accurate positioning in the body, after the installation of leakage or torque increase;
Single or double valve stem without taper pin structure, to prevent the media along the taper pin leakage corrosion on the valve stem and valve body. Design, plate streamlined valve resistance is small, large flow area, has the characteristics of excellent the media regulator.
The elastic soft sealing line supporting ear butterfly valve sealing ring is more than 200 kilograms of pressure in a special mould filling in Boluote products, sealing surface width, movable and detachable, high strength, good elasticity, abrasion resistance, aging resistance, long service life;
The valve body has a plurality of bolt holes, with internal screw thread or the light hole, especially for vertical installation, internal thread connection better stability;
The elastic soft sealing line supporting ear butterfly valve stem seal ring and there are three special self-lubricating bearings, fully prevent leakage along the stem caused by medium;
Material selection range, compact structure, convenient installation and disassembly, especially suitable for automatic control. According to Boluo each valve in the factory before the seal test by gas.
Applicable medium and material
Drinking water, sewage, water, sea water, air, natural gas, coal gas, steam, oil, chemical medium,
Viscous medium, food, solid powder and particles, no silicon surface spray processing, petrochemical, hvac,
Gas transmission, power plant, steel, shipbuilding and pharmaceutical paper.
Design and manufacturing standards
Nominal diameter: DN20~DN600
Structure size: EN 558 Reihe 20 （DIN 3202 T3 K1）
ISO 5752 Reihe 20
API 609 Table 1
BS 5155 Reihe 4
NF E 29-305.1
Flange connection: DIN 2501 PN6/10/16
ANSI B 16.5 Class 150
MSS SP44 Class 150
AWWA 207
AS 2129 Table DE
BS 10 Table DE
JIS B 2211-5K
JIS B 2212-10K standard
The sealing surface: DIN 2526, Form A-E, ANSI RF
Seal level: bidirectional bubble level zero leakage
DIN 3230 T3 BO BN （Leckrate 1）
ISO 5208 Category 3
API 598 Table 5
ANSI B 16-104 Class VI
Working pressure: 16 bar
Differential pressure: 16 bar
Application of vacuum: compley zero leakage sealing 0.2 bar. The higher vacuum degree
With the medium and temperature.
Working temperature: - 20 ℃ ~+160 ℃ （pressure, medium and material）
The valve body appearance: advanced electrostatic spraying epoxy resin
The top flange: EN/ISO 5211 / NF E 29-402
Flange hole: DIN 2641/DIN 2642
Application of standard: EN 593 （DIN 3354）
Identification of valves: DIN/EN 19
