Non-Rising Stem Gate Valve
Product Introduction
The non-rising stem gate valve features carbon steel or stainless steel body with built-in stem nut design, offering compact structure ideal for underground pipelines or space-constrained installations. With full-bore design minimizing flow resistance, it's widely used in petroleum, natural gas and water supply systems. The concealed stem design effectively protects the stem from external corrosion and mechanical damage. Hard-faced sealing surfaces provide excellent wear resistance for high-pressure applications. Operation options include handwheel, gearbox or actuator to meet various requirements.
Product Features
Compact Design
Non-rising stem saves installation height.
01
Full-bore Passage
Minimal flow resistance for high-capacity applications.
02
Double Sealing
Wedge and seat dual sealing ensures zero leakage.
03
Wear-resistant Seat
Hard-faced sealing surface extends service life.
04
Versatile Operation
Handwheel, gearbox or actuator options available.
05
Product Advantages
Space-saving
Ideal for underground or confined spaces
01
Reliable Sealing
ANSI Class VI leakage rating
02
Low Maintenance
Protected stem design reduces upkeep
03
Long Service Life
Premium materials and wear-resistant construction
04
Flexible Actuation
Multiple operation methods for different needs
05
Material Specification
|
Name parts |
Driving cap |
Dust cover |
O-ring |
Bonnet |
Body |
Hand heel |
Shaft cover |
Thrust bearing |
Bolt |
Valve stem |
Copper nut |
Disc |
|
Material |
GG25 |
NBR |
NBR |
GG25 |
GG25 |
GG25 |
GG25 |
BRONZE |
SUS410 |
SUS410 |
Bronze |
GG25 coated with EPDM or NBR |
|
DN (mm) Nominal diameter |
PN (MPa) Nominal pressure |
Working temperature |
Sealing pressure |
Valve body stress |
Applicable medium |
|
DN50-400mm |
1.0/1.6/2.5MPa |
0-80℃ |
1.1 times the nominal pressure |
1.5 times the nominal pressure |
Water, oil, gas |
|
DN (mm) Nominal diameter |
D1 |
D2 |
N-Ød |
L |
H |
|||
|
1.0MPa |
1.6MPa |
1.0MPa |
1.6MPa |
1.0MPa |
1.6MPa |
|||
|
50 |
135 |
125 |
4-19 |
178 |
340 |
|||
|
65 |
185 |
145 |
4-19 |
190 |
370 |
|||
|
80 |
200 |
160 |
8-19 |
203 |
410 |
|||
|
100 |
220 |
180 |
8-19 |
229 |
450 |
|||
|
125 |
250 |
210 |
8-19 |
254 |
180 |
|||
|
150 |
285 |
240 |
8-23 |
267 |
550 |
|||
|
200 |
340 |
295 |
8-23 |
12-23 |
292 |
630 |
||
|
250 |
405 |
350 |
355 |
12-23 |
12-28 |
330 |
750 |
|
|
300 |
460 |
400 |
410 |
12-23 |
12-28 |
356 |
820 |
|
|
350 |
520 |
460 |
470 |
16-23 |
16-28 |
381 |
980 |
|
|
400 |
580 |
515 |
525 |
16-28 |
16-31 |
406 |
1010 |
|
Technical Parameters
|
Size |
DN32-DN600 |
DN650-DN2000 |
|
Working pressure |
16Bar |
10Bar |
|
Shell |
24Bar |
15Bar |
|
Seal |
18Bar |
11Bar |
|
Operating Temperature |
-45°C~+150°C |
|
|
Operating Environment |
Ballast and bilge system Chemical processing Desalination plants |
|
|
Driving Method |
Hand Lever Worm Gear Electric Pneumatic |
|
Executive Standards
|
Design Standard |
EN 593, MSS SP67, API 609, BS 5155 |
|
Inspection & Test |
API 598, ISO 5208, EN 12266 |
|
End Standard |
ANSI B16.1 CL. 125LB & B16.5 CL. 150LB |
|
AS 2129 Table D & E |
|
|
BS 10 Table D & E |
|
|
DIN 2501 (PN6, PN10, PN16) |
|
|
EN 1092 (PN6, PN10, PN16) |
|
|
ISO 2531 (PN6, PN10, PN16), 7005 (PN6, PN10, PN16) |
|
|
KS B / JIS B 1511 / 2210 (5K & 10K) |
|
|
MSS SP44 CL. 150LB |
|
|
AWWA C207 |
|
|
SABS 1123 Table 1000/3 & Table 1600/3 |
|
|
Face to Face |
ISO 5752, EN 558, MSS SP67, API 609, DIN 3202 |
|
Top Flange |
ISO 5211 |
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