Steel Wedge Gate Valve with Rising Stem — 30с41нж / 30с64нж
All-purpose shut-off valve configured for water, dry steam, oil, natural gas, and non-viscous liquids. Precision machined seating faces guarantee continuous bubble-tight shutoff.
- DN
- Ду50 ~ 1200мм (DN50 - DN1200)
- PN
- Ру1.6 ~ Ру2.5 МПа (PN16 - PN25)
- Temperature
- ≤ 425°C
- Material
- Carbon Steel 20L-25L / Cast Steel Alloy
- Reference standard
- ГОСТ 5762-2002
Configuration features
- Flanged connection compliant with GOST 12815
- Engineered operational life expectancy — 15 Years
- Defect-free airtightness class 'A' rating (GOST 9544)
Verification before ordering
This page describes a base model configuration. Before purchase, engineering must verify the medium, design pressure and temperature, flow direction, body and trim materials, flange execution, face-to-face dimension and actuator requirements. The published ranges do not mean that every combination of DN, PN, material and temperature is available simultaneously. The exact execution, production lead time and acceptance-document schedule are fixed in the technical quotation. Export projects also require agreement on applicable standards, testing, material traceability and destination-market regulatory requirements.
Industry applications
- Industrial valves for water and wastewater systems
- Industrial valves for power generation and steam systems
- Industrial valves for oil, gas and petrochemical projects
- Industrial valves for mining, slurry and mineral processing
Engineering resources
- How to select an industrial gate valve: DN, PN, materials and service
- GOST, EN and API valve standards: what export buyers verify
- Industrial valve RFQ checklist: how to obtain comparable quotations
- Industrial valve quality control: from casting to pressure test
- API 598 vs ISO 5208 vs EN 12266-1 for industrial valve testing
- Types of industrial valves: a practical selection guide
- PN vs ASME Class for valves: compare pressure ratings
- Industrial valve supplier for Europe: a procurement guide
- PED and CE marking for industrial valves supplied to Europe
- EN 10204 3.1 material certificates for industrial valves
- EN 1092-1 vs ASME B16.5 valve flanges: compatibility guide
- EN 558 vs ASME B16.10 valve face-to-face dimensions
- ISO 15848 fugitive-emission requirements for industrial valves
- Industrial valve supplier for Russia and CIS projects
- TR CU 032 and EAC conformity for industrial valves
- GOST 33259 vs EN 1092-1 flanges for industrial valves
- Cold-climate industrial valves: materials and specification
- Industrial valve supplier for Middle East EPC projects
- NACE MR0175 / ISO 15156 for sour-service valves
- API 6D pipeline valves: project specification guide
- API 607 vs API 6FA: fire-safe valve qualification
- Industrial valves for desalination plants: material selection
- Industrial valve vendor prequalification checklist
- Industrial valve inspection and test plan: ITP guide
- Industrial valve manufacturing record book: MRB contents
- WCB vs LCB vs WC6 valve materials: selection guide
- CF8M vs CF3M stainless steel valves: what changes?
- Ductile iron vs cast iron valves: engineering differences
- Metal-seated vs soft-seated valves: how to choose
- Rising stem vs non-rising stem gate valves
- Resilient-seated vs metal-seated gate valves
- Industrial valve actuator sizing: torque and thrust guide
- Electric vs pneumatic valve actuators: project comparison
- ATEX actuated valves for EU projects: buyer checklist
- EN 593 butterfly valves: specification guide
- EN 1984 gate valves: buyer specification guide
- ISO 12944 C5 valve coating for corrosive sites
- GOST 9544 valve leakage classes: procurement guide
- EAC declaration vs certificate for pressure equipment
- Industrial valve passport in Russian: required project data
- Duplex and super duplex valves for seawater service
- Industrial valves for Middle East district cooling
- Valve actuators for high ambient desert temperatures
- Factory acceptance test for industrial valves
- Third-party inspection of industrial valves
- Industrial valve export packaging and preservation
- Industrial valve spare parts for commissioning and two-year operation
- Industrial valves for Turkey: ordering from Tashkent for Istanbul projects
- CE marking for imported valves in Turkey: the Pressure Equipment Regulation
- Shipping industrial valves from Uzbekistan to Turkey and Europe
- Importing valves from Uzbekistan into the EU: HS codes, GSP+ and documents
- Valve manufacturer in Uzbekistan: what international buyers should check
- Resilient-seated gate valves for European water utilities: EN 1074 and approvals
- Sourcing industrial valves for German projects from outside the EU
- Industrial valves for Poland: district heating, water and UDT requirements
- Industrial valves for Romania, Bulgaria and the Balkans from Central Asia
- Industrial valves for Azerbaijan and Georgia: GOST, API and project rules
- What drives the price of industrial gate valves in an export quotation
- Gate valve vs ball valve: which one to choose for a pipeline
- Gate valve vs butterfly valve for water and district heating
- Gate valve vs globe valve: differences and where to use each
- Knife gate valve vs wedge gate valve for slurry, sludge and water
- Solid, flexible or split wedge: choosing the gate valve closure
- Parallel double-disc gate valves (30ch6br): design, benefits and limits
- Cast iron or steel gate valve: choosing the body material
- How to read Russian and GOST valve codes: 30s41nzh, 30ch39r, 15s22nzh
- Gate valve installation: orientation, flanges, bolting and start-up
- Gate valve stem leak: adjusting and replacing the gland packing
- Gate valve passing when closed: causes of seat leakage and fixes
- Gate valve stuck or hard to turn: causes and safe ways to open it
- Pressure locking and thermal binding of gate valves on steam and hot water
- Bypass on large gate valves: why it is needed and how to specify it
- Gate valve hydrostatic testing: shell strength and seat leakage tests
- Gate valves for steam: materials, wedge, packing and operating rules
- Gate valves for district heating networks: supply and return lines
- Gate valves for water mains: chamber and direct-buried installation
- Gate valve with electric actuator: selecting a multi-turn actuator
- Stainless steel gate valves: which media need them and how to pick the grade
- DN and PN explained: nominal size and nominal pressure for valves
- Valve working pressure at high temperature: reading GOST 356 and datasheets
- Swing check valve vs lift check valve: which to choose
- Check valve slam and water hammer at pumping stations: causes and fixes
- How to install a check valve: orientation, distance from pumps, common mistakes
- Globe valves: how to choose for steam, water and oil products
- Full-bore vs reduced-bore ball valves: what is the difference
- Butterfly valves: wafer, lug or double-flanged
- Triple-offset butterfly valves: when they beat gate and ball valves
- Fully welded ball valves for district heating and gas
- Flange facings under GOST 33259: types A, B, E/F and others
- Valve passport and documentation: what should come with the valve
- Valves for drinking water: materials, coatings and approvals
- Pump station valves: what goes on the suction and discharge side
- Valves for irrigation systems and irrigation pump stations
- Valves for oil depots and tank farms
- Isolation valves for gas distribution networks
- Preventive maintenance for valves: schedule and tasks
- Repair or replace a gate valve: how to decide
- Storing and preserving valves in the warehouse and on site
- Buying gate valves from Uzbekistan for Italy
- Valves for Spain and Portugal: water, irrigation and desalination
- Supplying valves to France: CE, ACS and buyer requirements
- Valves for the Netherlands and Belgium: ports, chemicals and water
- Supplying valves to the UK: UKCA, WRAS and BS EN standards
- Valves for Austria: district heating, water and ÖVGW requirements
- Supplying valves to Switzerland: outside the EU, inside its rules
- Valves for Czechia and Slovakia: district heating and industry
- Valves for Hungary: district heating, water and a logistics hub
- District heating valves for Denmark, Sweden and Finland
- Gate valves for Latvia, Lithuania and Estonia: replacing Soviet-standard valves
- Valves for Greece and Cyprus: water, irrigation and ports
- Valves for Croatia and Slovenia: the ports of Rijeka and Koper
- Valves for Serbia, Bosnia, North Macedonia and Montenegro
- Valve supplier for Izmir, Ankara and Bursa: Turkey’s industrial zones
- Gate valves for Kazakhstan: Almaty, Astana and Shymkent
- Valves for Kyrgyzstan: Bishkek, Osh and hydropower
- Valves for Tajikistan: Dushanbe, Khujand, water and power
- Valves for Turkmenistan: gas, water and transit to Turkey
- Valves for Afghanistan via Termez: water, irrigation and power
- Valves for mining and mineral processing plants: slurry, water, air
- Valves for thermal and CHP power plants: steam, feedwater, cooling
- Boiler house valves: what goes on boilers, pumps and headers
- Valves for chemical plants: materials and safety
- Valves for fertilizer plants
- Valves for food and beverage plants: sanitary versus industrial
- Valves for textile and dyeing mills
- Valves for wastewater treatment plants
- Valves for a building heating substation
- Valves for fire water systems
- Valves for commercial greenhouses: heating, irrigation, boiler house
- Valves for hydropower and small hydro plants
- Valves for cooling water circuits and cooling towers
- Valves for oil refineries
- Valves for steel and metallurgical plants: water, gases, air
- Valves for cement plants
- Valves for compressed air systems
- Valves for residential developments: what the developer buys
- Valves for industrial park and free economic zone utilities
- Valves for drinking water treatment plants