Contacts
Location
Mumbai – 400072
Contact
sales@velqor.com
Pressure Relief & Control Valves
Rising-spindle shut-off and pressure-control valves for isolating and managing hydraulic circuits — metal-to-metal seat, sub-plate mounted, with custom relief configurations engineered on request.
Need a Custom Valve?
Share your drawing or specifications and we'll help you with the right valve solution.
Send RequirementReliable Shut-Off and Pressure Control for Hydraulic Circuits
Velqor's SOV series shut-off valves provide precise manual isolation and pressure control within hydraulic circuits. Built with a rising-spindle, metal-to-metal seat design, they deliver leak-free closure without relying on elastomer seals, and mount to a sub-plate interface for direct integration into manifold and panel assemblies. For dedicated overpressure protection or automatic relief functions, our engineering team can quote a custom-configured solution against your circuit requirement and approved drawing.
- Rising spindle, metal-to-metal seat for leak-free shut-off
- Sub-plate mounting per ISO 5781-AB-03-4-B interface standard
- Manual T-handle operation for reliable circuit isolation
- Precision-machined mounting surface (Ra 0.8 µm, flatness 0.01 µm/100mm)
- Custom pressure-control and relief configurations engineered on request
Precision CNC Machining
Variants Available
Configurations to Match Your Circuit
Every configuration below is confirmed against your requirement, drawing, or sample before production.
Rising-spindle shut-off valve built to the ISO 5781-AB-03-4-B mounting interface.
Standard T-handle rising-spindle operation for manual circuit isolation and control.
Leak-free closure without elastomer seals — suited to high-cleanliness circuits.
Standard body material for general hydraulic circuit applications.
Corrosion-resistant options for demanding or offshore environments, confirmed per requirement.
For dedicated overpressure or relief functions, share your circuit requirement for a custom-engineered solution.
Specifications
Typical Specification Inputs
Shut-off / isolation valve, rising spindle, metal-to-metal seat (SOV series)
Carbon Steel, SS304, SS316 — as per requirement
Sub-plate mounting per ISO 5781-AB-03-4-B
44mm x 54.5mm valve body, M5 fixing screws (4 nos.)
9 Nm tightening torque, per approved mounting spec
Roughness 0.8 µm; flatness 0.01 µm/100mm
Metal-to-metal seat (no elastomer seal on standard SOV configuration)
Confirmed per requirement, size, and material selection
Final specifications, dimensions, materials, and performance details are confirmed against approved drawings, samples, or order requirements before production.
Applications
Where These Valves Are Used
Manual isolation of hydraulic lines during maintenance or servicing.
Sub-plate mounted integration into manifold and panel circuits.
Dedicated shut-off points for managing circuit pressure zones.
Isolating sections of a circuit during testing and calibration.
General-purpose circuit control across industrial machinery.
Overpressure and relief configurations engineered to your circuit requirement.
RFQ Checklist
To Quote This Product Accurately, We Need a Few Details
Share as much as you can — a drawing or sample photo speeds up the process considerably.
Frequently Asked Questions
Is the SOV series an automatic pressure-relief (safety) valve?
No — the standard SOV series is a manual shut-off/isolation valve with a metal-to-metal seat, not an automatic relief valve. For dedicated overpressure or relief functions, share your circuit requirement so our engineering team can quote a custom-configured solution.
What mounting standard does the SOV use?
It uses a sub-plate mounting interface per ISO 5781-AB-03-4-B, with M5 x 50L (10.9) fixing screws torqued to 9 Nm.
What materials are available?
Common configurations use carbon steel, stainless steel 304, or stainless steel 316 bodies, confirmed per requirement.
What's the operating pressure rating?
Operating pressure is confirmed per requirement based on valve size and material selection — share your circuit details and we'll confirm the rating.
Can Velqor manufacture as per drawing or sample?
Yes. We regularly manufacture to an approved drawing, sample, or specification provided by the buyer.
Does the SOV use elastomer seals?
No. The standard configuration uses a metal-to-metal seat for leak-free closure. Let us know if your application needs an elastomer-sealed variant so we can confirm options.
What mounting surface finish is required?
The mating surface should meet a roughness of 0.8 µm and flatness of 0.01 µm/100mm for a reliable, leak-free seal.
Can Velqor support bulk export orders?
Yes, Velqor is set up for export-ready packaging and documentation. Share your destination country and quantity so we can confirm logistics and lead time.
Get Started
Ready to Source Pressure Relief & Control Valves?
Send your drawing, valve function, mounting interface, material, operating pressure, quantity, and destination country. We'll review your requirement and confirm the right configuration — including custom pressure-control engineering where needed.