【國標(biāo)鑄鋼截止閥結(jié)構(gòu)特點(diǎn)及用途】
1.全關(guān)時(shí)手輪按順時(shí)針方向旋轉(zhuǎn);
When fully closed,the handwheel rotates clockwise.
2.可以安裝在管道的任何位置上,介質(zhì)從下往上流;
Able to be mounted on any b of the pipeline,the medium flows from down to up.
3.不銹鋼截止閥適用于各類腐蝕性介質(zhì)的管道上,有良好的防腐性和足夠的強(qiáng)度;
Stainless steel made stop valve is of good anti-corrosive property and enough strength and suitable for various pipelines with corrosive medium.
4.合金鋼截止閥適用于耐高溫的蒸汽、油品管道上,具有耐高溫特點(diǎn)。
Alloy steel made stop valve features high-temperature resistance,suitable for high-temperature steam and oil goods pipelines.
【國標(biāo)鑄鋼截止閥執(zhí)行標(biāo)準(zhǔn)】
設(shè)計(jì)規(guī)范:GB/T 12235
結(jié)構(gòu)長度:GB/T 12221
法蘭連接:JB/T 79
試驗(yàn)與檢驗(yàn):JB/T 9002
產(chǎn)品標(biāo)識(shí):GB/T 12220
供貨規(guī)范:JB/T 7928
【國標(biāo)鑄鋼截止閥主要零部件材料】
產(chǎn)品類型Product classification | 零件名稱Part name |
閥體、閥蓋Body bonnet | 閥桿Valve stem | 閥瓣Disc | 密封面Sealing face | 閥桿螺母Yoke nut | 填料Packing | 緊固件Fastener | 手輪Handwheel |
J41(H.Y)-C型 J941(H.Y)-C型 | 25、WCB | 鉻不銹鋼Cr.Stainless steel | 2Cr1325 | H:不銹鋼Y:鈷基硬質(zhì)合金鋼H:Stainless steelY:Co-based carbide alloy steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 優(yōu)質(zhì)碳鋼High-grade carbon steel | 可鍛鑄鐵Forgeable cast-iron |
J41W-P型J941W-P型 | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鉻鎳鈦鋼Cr.Ni.Ti steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 不銹鋼Stainless steel | 可鍛鑄鐵Forgeable cast-iron |
J41W-R型 | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鉻鎳鉬鈦鋼Cr.Ni.Mo.Ti steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 不銹鋼Stainless steel | 可鍛鑄鐵Forgeable cast-iron |
J41Y-I型J941Y-I型 | 鉻鉬鋼 Cr.Mo steel | 鉻鉬鋼Cr.Mo steel | 合金鋼Alloy steel | 鈷基硬質(zhì)合金鋼C0-based carbide alloy steel | 鋁青銅Albronze | 柔性石墨Flexible graphite | 合金鋼Alloy steel | 可鍛鑄鐵Forgeable cast-iron |
【國標(biāo)鑄鋼截止閥試驗(yàn)壓力】
公稱壓力PN(MPa)Nominal pressure | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
殼體強(qiáng)度試驗(yàn)Shell strength test | 2.4 | 3.8 | 6.0 | 9.6 | 15 | 24 |
上密封試驗(yàn)Back seal test | 1.8 | 2.8 | 4.4 | 7.0 | 11 | 18 |
密封試驗(yàn)Seal test | 1.8 | 2.8 | 4.4 | 7.0 | 11 | 18 |