Product

High-performance Bufferfly Valve

Specification

Size：NPS 2”～48”/DN50～DN4000
Pressure: 150LB～300LB/PN10～PN50；
Matrial：Carbon steel, heat-resistant steel, stainless steel, nickel-based alloy, titanium alloy, etc.
Temperature range:  -196℃～300℃； 
Connection method:  clamp, flange, lug, etcDesign: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Application: petroleum, petrochemical, natural gas, electric power, water conservancy and other industries.

Main Parts Material:

Body

Carbon Steel

WCB

Carbon Steel

A351 Gr CF8  CF8M  CF3M

Disc

Carbon Steel

A351 Gr CF8  CF8M  CF3M

Retainer

Carbon Steel

A351 Gr CF8  CF8M    CF3M

Seat

PTFE PTFE+CLASS FIRER PTFE+GRARHITE

PTFE /RPTFE

Bushing

PTFE+316SS

PTFE+316SS

Stem

Carbon Steel

A182 F304  F316 A564 Gr.630 A479 Gr.XM-19

Pin

Carbon Steel

A240 Gr.316

Seal

PTFE

PTFE

Gland Packing


PTFE PTFE+GRAPHITE


PTFE RPTFE

Feature:

  1. Double eccentric structure design. The uniquely designed lip sealing structure achieves zero leakage of two-way bubble level under elastic interference and self-sealing.
  2. Interchangeable PTFE seats can be used in a variety of different working conditions to achieve long service life and effect.
  3. Anti-blowout valve design.
  4. Under the working condition of fugitive medium, the low-leakage carbon fiber bowl type combined with packing structure can be adopted to meet the requirements of ISO15848 and API622 standards.
  5. The tangential pin of the valve stem is half on the valve plate and half in the valve stem, and the tangential positioning makes the squeeze force of the valve plate and the valve instead of the shear stress, making the connection more reliable.
  6. Equipped with ISO 5211 standard connecting plate, pneumatic device, electric device, gas-liquid linkage device and other remote control mechanisms can be installed for automatic control system.

Welcome to our valve company! We are a leading provider of high-quality valves and valve solutions for various industries.

Get in touch
Email us: sales@hf-valves.com hf-valves@gracebaosteel.com
Contact Us
+86 17791725286
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Address

Xian Hengfeng: Electromechanical Equipment Co.,Ltd
No.15,group 3,Sanlian Village,Dazhao Street Office,Chang’an District,Xi’an City, Shaanxi Province

Yiwu Hengfeng:
Zongtang 1st District, Jiangdong Street, Yiwu
City, Jinhua City, Zhejiang Province

Hk: Gracebao Steel Manufacturing Co.,Ltd
15/F, Lucky Center No.165-171,Wanchai Road, Wan Chai, Hongkong