Temel bilgiler.
Conta yüzeyi
Kama Geçit Valfi
Uygulama
Su Endüstriyel Kullanımı
Teknik Özelikler
DN15~DN500
Ürün Açıklaması
WHY BELLOWS SEAL VALVESOne of the most frequent and serious problems valves face is gland leakage, results in wasted and increased plant downtime. Apart from the high cost of energy losses, Gland leakages can also cause serious environmental, ecological and health hazards to plant workers and personnel. Leakage of sensitive material can also constitute to a fire hazard, explosion, or damage to equipment by corrosive material. Air entering the pipeline could produce inflammable explosive or poisonous mixtures. Gland packed valves often demand continual maintenance in accessibility creating particular difficulties. The bellows comply to conditions at high temperatures and are capable of withstanding over 10,000 cycles without failure.ApplicationHot oil system, steam system, hot and cold water system etc.Advantage1.Bellow seal element. The key part of bellow sealed globe valves is mental bellow. It is the connection between cover and stem with automatic roll welding. The mental bellow can keep the stem part no leakage.2.Benefit from the con and streamline shape design, the disc has a reliable seal and longer service life.3.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide a excellent seal.4.Grease nipple. It can direct lubricate the stem, nut and sleeve.5.Ergonomic hand wheel. It provide longer service life and easier operation.Technical specificationDesign standard: ASME B16.34Face to face dimension: ASME B16.10Flanged ends: ASME B16.5Test & inspection: API 598Performance specificationNominal Pressure | PN | |
Test Pressure | Strength test | 1.5PN | MPa |
Sealing test | 1.1PN |
Gas seal test | 0.6 |
Bellows test | 1.1PN |
Suitable temp | -196ºC~600ºC |
Main part materialsNO. | Part name | Material |
1 | Body | WCB,CF8,CF8M |
2 | Seat | 304,Stellite |
3 | Disc | WCB+13Cr,CF8,CF8M |
4 | Stem | 13Cr,F304,F316 |
5 | Bellows | S.S304,S.S316L |
6 | Screw nut | ASTM A194-2H,A194-8,A194-8M |
7 | Stud | ASTM A193-B7,A193-B8,A193-B8M |
8 | Nut | ASTM A194-2H,A194-8,A194-8M |
9 | Metal gasket | Stainless+ Flexible graphite |
10 | Yoke | WCB,CF8,CF8M |
11 | Nut | ASTM A194-2H,A194-8,A194-8M |
12 | Stud | ASTM A193-B7,A193-B8,A193-B8M |
13 | Nut | ASTM A194-2H,A194-8,A194-8M |
14 | Gasket | Stainless+ Flexible graphite |
15 | Seal bowl | S.S304,S.S316 |
16 | Packing | Flexible graphite |
17 | Extremely heavy pin | 1045,S.S304,S.S316 |
18 | Extremely heavy bolt | ASTM A193-B7,A193-B8,A193-B8M |
19 | Extremely heavy nut | ASTM A194-2H,A194-8,A194-8M |
20 | Gland | WCB,CF8 |
21 | Stem nut | Copper alloy,D2,BL-2 |
22 | Bearing nut | 1045,S.S304,S.S316 |
23 | Hand wheel | 60-40-18 |
24 | Locknut | 1045 |
Main connection sizeMaterial | DN | Main connection size |
150 LB |
L | D | D1 | D2 | b | f | | n-Φd |
A105 | 1/2″ | 108 | 90 | 60.5 | 35 | 10 | 2 | | 4-Φ16 |
3/4″ | 117 | 100 | 70 | 43 | 11 | 2 | | 4-Φ16 |
1″ | 127 | 110 | 79.5 | 51 | 12 | 2 | | 4-Φ16 |
1-1/4″ | 140 | 115 | 89 | 63.5 | 13 | 2 | | 4-Φ16 |
1-1/2″ | 165 | 125 | 98.5 | 73 | 15 | 2 | | 4-Φ16 |
A105 WCB | 2″ | 178 | 150 | 120.5 | 92 | 16 | 2 | | 4-Φ19 |
WCB | 2-1/2″ | 190 | 180 | 139.5 | 105 | 18 | 2 | | 4-Φ19 |
3″ | 203 | 190 | 152.5 | 127 | 20 | 2 | | 4-Φ19 |
4″ | 229 | 230 | 190.5 | 157 | 24 | 2 | | 8-Φ19 |
5″ | 254 | 255 | 216 | 186 | 24 | 2 | | 8-Φ22 |
6″ | 267 | 280 | 241.5 | 216 | 26 | 2 | | 8-Φ22 |
8″ | 292 | 345 | 298.5 | 270 | 29 | 2 | | 8-Φ22 |
10″ | 330 | 405 | 362 | 324 | 31 | 2 | | 12-Φ25 |
12″ | 356 | 485 | 432 | 381 | 32 | 2 | | 12-Φ25 |
14″ | 381 | 535 | 476 | 413 | 35 | 2 | | 12-Φ29 |
16″ | 406 | 595 | 540 | 470 | 37 | 2 | | 16-Φ29 |
18″ | 432 | 635 | 578 | 533 | 40 | 2 | | 12-Φ32 |
20″ | 457 | 700 | 625 | 584 | 43 | 2 | | 20-Φ32 |
300 LB |
| 1/2″ | 140 | 95 | 66.5 | 35 | 15 | 2 | | 4-Φ16 |
3/4″ | 152 | 115 | 82.5 | 43 | 16 | 2 | | 4-Φ19 |
1″ | 165 | 125 | 89 | 51 | 18 | 2 | | 4-Φ19 |
1-1/4″ | 178 | 135 | 98.5 | 63.5 | 20 | 2 | | 4-Φ19 |
1-1/2″ | 190 | 155 | 114.5 | 73 | 21 | 2 | | 4-Φ22 |
A105 WCB | 2″ | 216 | 165 | 127 | 92 | 23 | 2 | | 8-Φ19 |
WCB | 2-1/2″ | 241 | 190 | 149 | 105 | 26 | 2 | | 8-Φ22 |
3″ | 282 | 210 | 168.5 | 127 | 29 | 2 | | 8-Φ22 |
4″ | 305 | 255 | 200 | 157 | 32 | 2 | | 8-Φ22 |
| | | | | | | | |
6″ | 403 | 320 | 270 | 216 | 37 | 2 | | 12-Φ22 |
8″ | 502 | 380 | 330 | 270 | 42 | 2 | | 12-Φ22 |
10″ | 568 | 445 | 387 | 324 | 48 | 2 | | 16-Φ29 |
12″ | 648 | 520 | 451 | 381 | 51 | 2 | | 16-Φ32 |
14″ | 762 | 585 | 514.5 | 413 | 54 | 2 | | 20-Φ32 |
16″ | 838 | 650 | 571.5 | 470 | 58 | 2 | | 20-Φ35 |
18″ | 914 | 710 | 628.5 | 533 | 61 | 2 | | 24-Φ35 |
20″ | 991 | 775 | 686 | 584 | 64 | 2 | | 24-Φ35 |
Jessie Zhu (Miss.)
Mob +86-15257760185
Website: vmvvalves.en.made-in-china.com
Adres:
Wuxing Industrial Area, Dongou Street, Yongjia County, Wenzhou, Zhejiang, China
İşletme Türü:
Üretici/Fabrika, Ticari Şirket
İşletme Aralığı:
Endüstriyel Ekipmanlar ve Bileşenleri, Hizmet, Kimyasallar, Üretim ve İşleme Makineleri
Yönetim Sistemi Sertifikasyonu:
ISO 9001
Şirket Tanıtımı:
Zhejiang Newton Fluid Control Co., Ltd. (NFC)
Introduction
NFC, pompa ve vana adı verilen Oubei Wenzhou′da bulunan profesyonel bir bellow contalı valf şirketidir. 2000 yılında, adı Yongjia Huamei Valve olduğunda kuruldu ve valf araştırma ve geliştirme, üretim, pazarlama ve servis çalışmalarına adanmış. Son on yıl içinde, geri tepme çabaları ve yeniliklerin ortaya çıkmasıyla NFC, valf endüstrisinin önde gelen şirketlerinden biri haline geldi. Şirketin 200′den fazla çalışanı var ve bunlardan 20′den fazla çalışanı profesyonel unvanlar ve 140′den fazla çalışanı profesyonel valf üretim becerileri ile çalışıyor.