
- 一、構造
纏繞式墊片由V形或W形金屬帶與非金屬帶相互重迭,連續纏繞而成在始,末端用焊點方式將金屬帶固定。
二、性能及特點
- 產品適用範圍廣。能耐高溫,高壓和適應超低溫或真空下的使用條件。通過改變墊片的材料組合,可解決各種介質對墊片的化學腐蝕問題。
- 應力補償能力強。在溫度,壓力波動頻繁的工位上,密封性能穩定可靠。
- 密封性能優良。
- 對於墊片接觸的法蘭密封麵的表麵精度要求不高。
- 安裝方便,墊片預緊壓力較低。
- 墊片係數:m=2.5-4
- 最小預緊比壓:y=68Mpa
Spiral Wound Gasket is the semi-metallic category,a narrow strip of V-shape metal hoop is spirally wound under tension with a filler cushion between the lamination of the metal and is Spot-welded at both ends。
This Unique construction of a spring-like metal and soft filler provides gasket excellent characteristics。
Resistance to high temperature and high pressures。
Great resilience which allows the gasket to adjust automatically to change in operating conditions,such as pressure and thermal shocks,vibrations etc。
Excellent sealaility is maintained with comparatively small gasket area。
Good tolerance for flange surface finish irregularities。
Can be designed to any dimensions economicallu in circular or moderately non-circular shape.
Available in a variety of hoop metals and filler materials to satisfy specific operating conditions.
※結構:
種類
截麵
鋼帶材質
填衝料材質
內外環材質
通用厚度
墊片
環
基本型
CS,304(L)SS,
316(L)SS,321SS,347LSS,Monel,
Titanium,Inconel,Hastelloy B/C,
Incoloy,etc.Asbestos
CS,304(L)SS,
316(L)SS,321SS,
347LSS,Monel,
Titanium, Inconel,
Hastelloy B/C
Incoloy,etc.2.5(.0624”)
3.2(.125”)
4.5(.175”)
6.4(.250”)
7.25(.285”)2
3
4帶內環
Non-asbestos
帶外環
Flexible graphite
帶內外環
PTFE
Ceramic
※可供尺寸及公差:
類型
DIN (mm)
ANSI B16.5
BS1560 (mm)
Mss sp-44API 605
公差
內環內徑
墊片內徑≤600
≤24"
≥26" & ≤34"
±0.5
>600 & ≤800
>24" & ≤ 34"
≥36" & ≤60"
±0.9
>800 & ≤1600
>34" & ≤60"
-
±1.3
>1600
>60"
-
±1.6
墊片外徑
≤600
≤24"
≥24"
±0.9
>600 & ≤1600
>24" & ≤60"
>24" & ≤60"
±1.8
>1600
>60"
-
±2.2
外環外徑
-
-
≥1/2" &≤ 60"
±0.9
≤600
≤24"
-
0-1.0
>600 & ≤1000
>24" & ≤34"
-
0-1.8
>1000 & ≤1600
>34" & ≤60"
-
0-2.2
備注:另外,麻豆md传媒在饯观看免费也可以根據GB4622.2-93,JB4705-92,JB/T4719-92,SH3407-96,HG20610-97,JB/T90-94,ANSI,API,JPI,JIS,DIS標準或客戶要求生產.