一、不銹鋼焊接止回閥概述：
啟閉件靠介質(zhì)流動(dòng)和力量自行開啟或關(guān)閉，以防止介質(zhì)倒流的方向流動(dòng)，以防止發(fā)生事故。止回閥按結(jié)構(gòu)劃分，可分為升降式止回閥，旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和臥式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥為直通式、以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接和焊接三種。
二、不銹鋼焊接止回閥主要零部件參數(shù)：
|
主 要 零 部 件
|
閥體、閥蓋、搖桿
|
WCB
|
CF8
|
CF8M
|
WC6、WC9
|
|
|
閥瓣
|
WCB堆Cr13或硬質(zhì)合金
|
CF8堆硬質(zhì)合金
|
CF8M堆硬質(zhì)合金
|
WC6、WC9堆硬質(zhì)合金
|
|
|
閥座
|
25堆Cr13或硬質(zhì)合金
|
304堆硬質(zhì)合金
|
316堆硬質(zhì)合金
|
20Cr1MoV堆硬質(zhì)合金
|
|
|
墊片
|
軟鐵、XB450
|
聚四氟乙烯
|
聚四氟乙烯
|
不銹鋼+耐酸石棉纏繞墊
|
|
|
螺栓
|
35CrMoA
|
35CrMoA
|
35CrMoA
|
25Cr1Mo1V
|
|
|
螺母
|
45
|
45
|
45
|
35CrMoA
|
|
主要參數(shù)
|
適用介質(zhì)
|
油品、水、蒸汽
|
硝酸類
|
醋酸類
|
油品、水、蒸汽
|
|
|
適用溫度
℃
|
≤425
|
≤200
|
≤200
|
≤550
|
三、不銹鋼焊接止回閥型號(hào)參數(shù)：
|
型號(hào)
|
公稱
通徑
NPS(in)
|
壓力級(jí)
Class
|
主要結(jié)構(gòu)尺寸(mm)
|
閥體
材料
|
性能規(guī)范
|
|
|
|
|
D
|
D1
|
L
|
L1
|
H
|
|
適用溫度(℃)
|
適用介質(zhì)
|
|
SFH-64C150C
|
2"
|
150
|
|
|
203
|
|
170
|
WCB
|
≤425
|
水、油品、蒸氣等
|
|
"
|
3"
|
"
|
|
|
241
|
|
185
|
"
|
"
|
"
|
|
"
|
4"
|
"
|
|
|
292
|
|
215
|
"
|
"
|
"
|
|
"
|
6"
|
"
|
|
|
356
|
|
260
|
"
|
"
|
"
|
|
"
|
8"
|
"
|
|
|
495
|
|
300
|
"
|
"
|
"
|
|
"
|
10"
|
"
|
|
|
622
|
|
350
|
"
|
"
|
"
|
|
"
|
12"
|
"
|
|
|
699
|
|
400
|
"
|
"
|
"
|
|
"
|
14"
|
"
|
|
|
787
|
|
450
|
"
|
"
|
"
|
|
"
|
16"
|
"
|
|
|
864
|
|
480
|
"
|
"
|
"
|
|
"
|
18"
|
"
|
|
|
978
|
|
540
|
"
|
"
|
"
|
|
"
|
20"
|
"
|
|
|
978
|
|
600
|
"
|
"
|
"
|
|
"
|
24"
|
"
|
|
|
1295
|
|
680
|
"
|
"
|
"
|
|
SFH-64C300C
|
2"
|
300
|
|
|
267
|
|
170
|
WCB
|
≤425
|
水、油品、蒸氣等
|
|
"
|
3"
|
"
|
|
|
318
|
|
215
|
"
|
"
|
"
|
|
"
|
4"
|
"
|
|
|
356
|
|
235
|
"
|
"
|
"
|
|
"
|
6"
|
"
|
|
|
445
|
|
300
|
"
|
"
|
"
|
|
"
|
8"
|
"
|
|
|
533
|
|
340
|
"
|
"
|
"
|
|
"
|
10"
|
"
|
|
|
622
|
|
350
|
"
|
"
|
"
|
|
"
|
12"
|
"
|
|
|
711
|
|
420
|
"
|
"
|
"
|
|
"
|
14"
|
"
|
|
|
838
|
|
480
|
"
|
"
|
"
|
|
"
|
16"
|
"
|
|
|
864
|
|
520
|
"
|
"
|
"
|
|
"
|
18"
|
"
|
|
|
978
|
|
600
|
"
|
"
|
"
|
|
"
|
20"
|
"
|
|
|
1016
|
|
670
|
"
|
"
|
"
|
|
"
|
24"
|
"
|
|
|
1346
|
|
750
|
"
|
"
|
"
|
|
SFH-64C600C
|
2"
|
600
|
|
|
292
|
|
175
|
WCB
|
≤425
|
水、油品、蒸氣
|
|
"
|
3"
|
"
|
|
|
356
|
|
230
|
"
|
"
|
"
|
|
"
|
4"
|
"
|
|
|
432
|
|
295
|
"
|
"
|
"
|
|
"
|
6"
|
"
|
|
|
559
|
|
360
|
"
|
"
|
"
|
|
"
|
8"
|
"
|
|
|
660
|
|
400
|
"
|
"
|
"
|
|
"
|
10"
|
"
|
|
|
787
|
|
460
|
"
|
"
|
"
|
|
"
|
12"
|
"
|
|
|
838
|
|
520
|
"
|
"
|
"
|
|
"
|
14"
|
"
|
|
|
889
|
|
560
|
"
|
"
|
"
|
|
"
|
16"
|
"
|
|
|
991
|
|
650
|
"
|
"
|
"
|
|
"
|
18"
|
"
|
|
|
1092
|
|
730
|
"
|
"
|
"
|
|
"
|
20"
|
"
|
|
|
1194
|
|
800
|
"
|
"
|
"
|
|
"
|
24"
|
"
|
|
|
1397
|
|
900
|
"
|
"
|
"
|
四、不銹鋼焊接止回閥售后服務(wù)
感謝您選購本公司閥門產(chǎn)品，本公司產(chǎn)品質(zhì)量保證，價(jià)格合理，貨到快捷，售后到位。本產(chǎn)品嚴(yán)格按照ISO9001國家質(zhì)量體系標(biāo)準(zhǔn)進(jìn)行質(zhì)量控制。質(zhì)量問題三個(gè)月包換，保修一年
專業(yè)制造、專業(yè)服務(wù)、為您創(chuàng)造更多價(jià)值!
金口閥門致力于滿足用戶的期望，不斷提升服務(wù)質(zhì)量，精益求精，“真誠的服務(wù)”是永恒的主題，嚴(yán)格按照ISO9001-2000質(zhì)量體系認(rèn)證要求，質(zhì)量嚴(yán)格把關(guān)，責(zé)任到人，確保生產(chǎn)、銷售、服務(wù)的一條龍運(yùn)行.加強(qiáng)與用戶溝通，竭誠為廣大新老客戶提供優(yōu)質(zhì)的產(chǎn)品，至善至美服務(wù).
特此我廠做出如下承諾：
產(chǎn)品標(biāo)準(zhǔn)：
產(chǎn)品嚴(yán)格按中國GB、HG標(biāo)準(zhǔn)和美國API等標(biāo)準(zhǔn)設(shè)計(jì)、制造、驗(yàn)收。密封面硬度達(dá)到國家規(guī)定要求，寬度超過國家標(biāo)準(zhǔn).
售前服務(wù)：
產(chǎn)品介紹，技術(shù)交流，非標(biāo)產(chǎn)品設(shè)計(jì)，疑難解答.
售中服務(wù):
1.守信合同，保證及時(shí)供貨，隨時(shí)保持與客戶聯(lián)系.
2.對(duì)特殊或復(fù)雜的產(chǎn)品，我廠安排介紹人員對(duì)用戶進(jìn)行產(chǎn)品使用、故障排除、調(diào)試及維修進(jìn)行培訓(xùn)和指導(dǎo).
售后服務(wù)：
- 產(chǎn)品質(zhì)保期為自簽訂合同生效起12個(gè)月，實(shí)行“三包”服務(wù)，（包退、包換、包修）.
- 產(chǎn)品在使用中我廠定期組織技術(shù)、質(zhì)檢人員進(jìn)行訪問，征詢用戶對(duì)產(chǎn)品質(zhì)量、使用狀況、改進(jìn)意見等各方面的反饋.
- 對(duì)用戶投訴質(zhì)量問題，快速做出反應(yīng)，售后服務(wù)人員在24-36小時(shí)（省外48小時(shí)）趕赴現(xiàn)場.
- 對(duì)售后服務(wù)，要求用戶填寫服務(wù)后的質(zhì)量反饋信息表，并做出鑒定意見，一邊提供的服務(wù)質(zhì)量.
