Application
Petroleum, chemical industry, pharmacy, fertilizer, power industry etc.
Advantage
1.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.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide a excellent seal.
3. Grease nipple. It can direct lubricate the stem, nut and sleeve.
4. Ergonomic hand wheel. It provide longer service life and easier operation.
Technical specification
Design standard: DIN 3356
Face to face dimension: DIN 3202
Flanged ends: DIN 2543-2545
Test & inspection: DIN 3230
Main part materials
NO. | Part name | Material |
1 | Body | A105N,F304,F316 |
2 | Seat | S.S304,Stellite |
3 | Disc | A105N+2Cr13/304 |
4 | Stem | 2Cr13,F304,F316 |
5 | Bellow assemble | S.S304,S.S316 |
6 | Composite gasket | Flexible graphite+ stainless steel |
7 | Packing | Flexible graphite |
8 | Bolt | ASTM 193-B7,A193-B8,A193-B8M |
9 | Jack pin | 45#,F304,F316 |
10 | Jack bolt | ASTM 193-B7,A193-B8,A193-B8M |
11 | Jack stem nut | ASTM 194-2H,A194-8,A194-8M |
12 | Packing bushing | 2Cr13,F304,F316 |
13 | Packing gland | A105N,F304,F316 |
14 | Stem nut | Copper alloy,D2 |
15 | Hand wheel | A105N |
16 | Cap | 45# |
17 | Cover | A105N,F304,F316 |
Performance specification
Nominal 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 connection size
PN 16 |
DN | Main connection size |
L | D | D1 | D2 | b | f | H | n-Φd |
15 | 140 | 95 | 65 | 45 | 16 | 2 | 233 | 4-Φ14 |
20 | 152 | 105 | 75 | 58 | 18 | 2 | 233 | 4-Φ14 |
25 | 210 | 115 | 85 | 68 | 18 | 2 | 284 | 4-Φ14 |
32 | 230 | 140 | 100 | 78 | 18 | 2 | 326 | 4-Φ18 |
40 | 240 | 150 | 110 | 88 | 18 | 3 | 366 | 4-Φ18 |
50 | 250 | 165 | 125 | 102 | 20 | 3 | 394 | 4-Φ18 |
PN 25 |
15 | 140 | 95 | 65 | 45 | 16 | 2 | 233 | 4-Φ14 |
20 | 152 | 105 | 75 | 58 | 18 | 2 | 233 | 4-Φ14 |
25 | 210 | 115 | 85 | 68 | 18 | 2 | 284 | 4-Φ14 |
32 | 230 | 140 | 100 | 78 | 18 | 2 | 326 | 4-Φ18 |
40 | 240 | 150 | 110 | 88 | 18 | 3 | 366 | 4-Φ18 |
50 | 250 | 165 | 125 | 102 | 20 | 3 | 394 | 4-Φ18 |
PN 40 |
15 | 140 | 95 | 65 | 45 | 16 | 2 | 233 | 4-Φ14 |
20 | 152 | 105 | 75 | 58 | 18 | 2 | 233 | 4-Φ14 |
25 | 210 | 115 | 85 | 68 | 18 | 2 | 284 | 4-Φ14 |
32 | 230 | 140 | 100 | 78 | 18 | 2 | 326 | 4-Φ18 |
40 | 240 | 150 | 110 | 88 | 18 | 3 | 366 | 4-Φ18 |
50 | 250 | 165 | 125 | 102 | 20 | 3 | 394 | 4-Φ18 |
Zhejiang Newton Fluid Control Co., Ltd. (NFC)
Introduction
The NFC is a professional bellow sealed valves company located in Oubei Wenzhou which is named the land of pumps and valves. It is founded in 2000, when its name is Yongjia Huamei Valve, and devoted to valve research and development, manufacture, marketing and service. Through the past decade, with unremitting efforts and innovation, the NFC has become one of the leading companies in the valve industry. It has over 200 staff members, of which there are more than 20 employees with senior professional titles and more than 140 employees with professional valve manufacturing skills.