
Oil & Gas
Flow Control
Application illustration. Final arrangement depends on process design.
PRODUCT RANGE
Start with the valve family.
Browse by service and valve type, then add the operating conditions that determine body, trim, sealing and actuation.
SLURRY SERVICEFEATURED DUTY
Abrasive media changes the selection.
Slurry composition, particle size, solids content and flow conditions affect the valve structure, wear surfaces, sealing and actuator sizing. Share the actual duty before choosing a configuration.
- Medium
- Composition and solids content
- Operating range
- Pressure, temperature and flow
- Connection
- Line size, standard and orientation
- Operation
- Manual or actuated; fail position if required
ENGINEERING SUPPORT
What happens before a quotation.
The product name is only the start. DQSV reviews the duty and required configuration so the inquiry can move to a technical proposal.
Duty review
Medium, pressure, temperature, flow, solids and corrosion conditions.
Structure selection
Valve type, body arrangement, trim and installation constraints.
Materials & sealing
Wetted materials, lining, seat and sealing requirements.
Actuation & control
Manual, pneumatic, electric or hydraulic operation and accessories.
Inspection inputs
Required tests, records and project documentation are confirmed with the order.
Delivery handoff
Packaging, shipment information and installation requirements.
INDUSTRY APPLICATIONS
Requirements change by process.
Move from the application to relevant valve families, operating inputs and an inquiry built around that duty.
ABOUT DQSV
Industrial valves. Application-focused support.
Xi’an Deqiansheng Valve Technology Co., Ltd. develops, manufactures, sells and services industrial valves. Our product range, quality management and responsive technical support serve customers in chemical processing, metallurgy, energy and mining.
About our company
- Established
- 2010
- Product series
- 100+
- Customers
- 2,000+
- Technical specialists
- 50+

TECHNICAL HANDOFF
Specify what must be checked and documented.
Inspection and documentation requirements differ by project. Confirm them before the order instead of leaving them to the end of production.
- Material and dimensional records requested by the project
- Pressure, sealing or functional test requirements
- Actuator, accessory and fail-position checks
- Final drawings, identification and packing requirements
START A PROJECT
Send the operating duty.
Tell us what the valve or instrument must do. Attach a drawing, datasheet or project specification when available.
- Medium or ambient conditions
- Pressure, temperature, flow or measuring range
- Size, connection, mounting and operation
- Control signal, fail position and quantity











