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Precision-engineered fluid control solutions manufactured to the most stringent industry standards.
Precision-engineered fluid control solutions manufactured to the most stringent industry standards.
Hydro Axis Valves is a pioneer Instrumentation Valves Manufacturer in India. We provide valves manufactured to the most stringent industry standards, widely applied across various industries.
Spring-loaded, Full-Lift
Pilot Operated
Thermal Relief
PTFE / FEP / PFA Lined
Back-pressure compensated
Hydro Axis Valves Pressure/Safety Relief Valves protect boilers, pressure vessels and process piping from dangerous overpressure. The range spans the Safe-Flow® BTS-50 Series — a top-guided, single-spring, full-lift angle discharge valve certified to IBR for steam & hot water boilers, autoclaves and steam pipelines with critical blow-down tolerance; the Thermo-Safe® thermal/safety relief range (BTS-10, BTS-10HL, BTS-11 & BTS-11HL) suited to steam pipelines, small industrial boilers (SIB) and thermal expansion duty; the Pio-Safe® BTS-5000 Series pilot operated valve engineered for high performance, high capacity and zero-leak overpressure protection in oil & gas, chemical and cryogenic service; and the Safe-Line® fully FEP/PFA lined valve for highly corrosive liquids, gases and vapours. Every valve is precision lapped, individually tested with compressed air, and manufactured to IBR / ASME / API standards.
| Size Range | 25 mm x 50 mm to 250 mm x 350 mm (Safe-Flow BTS-50); 15 mm x 25 mm to 50 mm x 50 mm (Thermo-Safe) |
| Pressure Rating | 150# to 2500#; BS 10 Table-H x E |
| Facing | Raised Face (R.F), Flat Face (F.F), Ring Type Joint (RTJ) |
| Body M.O.C | Carbon Steel / Alloy Steel / Stainless Steel |
| Trims | CF8 / 8M / SS 304 / 316 |
| Orifice (Seat) Dia. | 9.5 mm to 190 mm |
| End Connection | Flange End & Butt Weld |
| Safe-Line Set Pressure | 20 bar max., Temperature 200°C |
| Standards | API 520 (Sizing), API 526 (Design & Mfg.), API 527 (Testing), ASME Sec. VIII Div. 1 / ASME Sec. I, IBR-1950, ANSI B16.34, ANSI B16.5, NACE MR0175 |
| Accessories | Balance Bellows, Packed / Plain Lever, Test Gag, Lead Seal, Screwed / Bolted Cap |
Steam-Con® · Self-actuating, pilot operated
Bri-Con® · Roboter (self) operated
Bri-Con® · Pneumatic / Motorized operated
The Steam-Con® Pressure Reducing Valve & Station range automatically reduces a higher upstream pressure to a steady, pre-set downstream pressure. The PRV-100 Series is self-actuating — an internally sensed pilot & piston operated, spring & diaphragm actuated, top & bottom guided valve that needs no external power, ideal for steam, air and industrial gas service. The Bri-Con® RCV-100 Series is a Globe type, single seated, top & bottom guided valve that is purely line-pressure ("Roboter") operated — no external instrumentation or electrical signal required — for high-flow downstream pressure control. The Bri-Con® PCV-100 Series is the pneumatic / motorized version of the same platform, with cage-guided trim available for high-pressure duty, giving accurate upstream & downstream control on air, gas, steam and liquid service.
| Size Range | 15 mm to 25 mm (Screwed End, PRV-100); 25 mm to 150 mm (Flanged End) |
| Pressure Rating | 150# & 300# (PRV-100); 150# to 600# (RCV-100 / PCV-100) / BS 10 Table H |
| Facing | Raised Face (R.F), Flat Face (F.F) |
| Body M.O.C | Carbon Steel / Alloy Steel / Stainless Steel |
| Trims | CF8 / 8M / SS 304 / 316 |
| Leakage Class | Class IV (PRV-100) |
| Characteristics | Linear / Equal % / Quick Open (RCV-100 / PCV-100) |
| Pressure Reduction | 20:1 turndown |
| Min. Differential | 7 psig (PRV-100) |
| Outlet Pressure | Up to 14 kg/cm² (RCV-100) |
| End Connection | Flange End / Butt Welded / Screwed |
| Standards | ASME B16.34, ANSI B16.5, ASTM, ISA-S75.01, ISA-S75.02, ISA-S75.03 / S75.15, API 598, FCI 70.2 |
Downstream pressure control
Upstream pressure control
Surge & overpressure protection
PRV + sustaining + check
Hydro Axis Valves Pressure Control Valves are hydraulic pilot-operated valves that automatically maintain, sustain, or reduce pressure in pipelines and process systems. Three core control modes — Pressure Reducing (downstream), Back Pressure / Sustaining (upstream), and Pressure Relief — enable installation wherever precise pressure management is critical. The hydraulic pilot continuously senses process pressure and modulates the main valve to compensate for any deviation, maintaining tight set-point accuracy under varying flow conditions.
| Size Range | ½″ to 8″ (DN15 – DN200) |
| Pressure Rating | PN10 / PN16 / PN25 / PN40 |
| Operating Temperature | –20°C to 300°C |
| Body Material | Ductile Iron, WCB Carbon Steel, SS316 |
| Trim Material | SS304, SS316, Bronze |
| Diaphragm | Neoprene, EPDM, Buna-N, PTFE |
| End Connection | Flanged ANSI 150# / DIN PN16 / PN25 |
| Control Functions | Pressure reducing, Sustaining, Pressure relief |
| Standards | AWWA C530, ISO 9001 |
| Accuracy | ± 0.2 bar |
Globe type, spring & diaphragm
Motorized, two-way & three-way
Corrosive media service
Three-way mixing & diverting
HART / FF / Profibus
Bricon® Pneumatic Control Valves (Series PCV-77, PCV-77B, PCV-79, PCV-87 & PCV-97) are Globe type, single or double seated, spring & diaphragm actuated throttling / on-off valves — top-guided, cage-guided, or top & bottom guided for maximum plug stability, with PCV-97 offered as a three-way mixing & diverting valve. Bricon® Motorized Control Valves (MCV 77 two-way & MCV 97 three-way) provide the same Globe-type, top & bottom / skirt guided trim in an electrically motorized package. For severely corrosive, hazardous or high-purity media, Briflon® offers a one-piece PFA-lined cast ductile iron body Globe valve with hermetically sealed PTFE bellows, top-guided trim and top-entry maintenance access.
| Size Range | 15 mm to 150 mm (Briflon); 25 mm to 300 mm (Pneumatic); 25 mm to 500 mm (Motorized) |
| Pressure Rating | 150#, 300#, 600#, 900#, 1500# |
| Body M.O.C. | Carbon Steel / Stainless Steel / Alloy Steel; Ductile Iron + PFA/FEP lining (Briflon) |
| Trims | Stainless Steel / Monel / Soft Seated |
| Characteristics | Linear / Equal % / Quick Open / Metering Pin |
| Seat Leakage (Briflon) | Class VI as per ANSI / FCI 70.2 |
| Actuator | Spring & Diaphragm — Direct or Reverse (Pneumatic); Electrical Actuator (Motorized) |
| Spring Range (Briflon) | 3 to 15 psig |
| End Connection | Flanged End / Butt Weld End |
| Standards | ANSI B16.34, ANSI B16.5, ANSI B16.10, API 598, ANSI B16.104, ISA-S75.01, ISA-S75.02, ASME / FCI 70.2, IBR |
BTA-111 · Float operated
BTA-211 · Fuel-water shutoff
BTA-311-64 · Pump start/stop
BTA-311-66 · Electronic dual-solenoid
BTA-411 · Constant flow
BTA-511
BTA-611 · Back pressure
BTA-711 · Elevated tanks
BTA-811 · Anti-slam
BTA-311 · On/Off & modulating
BTA-1011 · Fire protection
The Actrol range of Automatic Control Valves comprises hydraulically operated, pilot-controlled diaphragm valves. The BTA-111 modulating float control valve maintains a constant liquid level in storage tanks and reservoirs. The BTA-211 filter separator control valve shuts off fuel flow on a signal from a fuel-water filter/separator float, closing drip-tight on diaphragm failure for fail-safe operation. The BTA-311 solenoid control valve gives two-position (on-off) operation from an electrical signal, with the BTA-311-64 booster pump variant controlling pump start-up/shut-down surges and the BTA-311-66 digital control valve giving electronically metered opening and closing. The BTA-411 rate-of-flow valve limits flow to a pre-selected maximum regardless of line pressure changes. The BTA-511 pilot pressure reducing valve holds downstream pressure constant despite varying upstream pressure and flow. The BTA-611 pilot pressure relief valve maintains constant upstream pressure while minimising surge. The BTA-711 altitude valve controls high water level in elevated tanks, the BTA-811 hydraulic check valve permits forward flow while closing drip-tight on reverse flow, and the BTA-1011 deluge valve provides solenoid-operated water flow control for fire protection sprinkler systems.
| Size Range | ½″ to 12″ (DN15 – DN300) |
| Pressure Rating | Up to 25 bar (PN10 / PN16 / PN25) |
| Operating Temperature | Up to 80°C (standard elastomers) |
| Body Material | Cast Iron, Ductile Iron, WCB, Bronze, SS316 |
| Diaphragm | Neoprene, EPDM, Buna-N |
| Trim | Brass, SS304, SS316 |
| End Connection | Flanged PN10 / PN16 / ANSI 150# |
| Power Requirement | None — self-operated from process energy |
| Inner Coating | Fusion-bonded epoxy for potable water |
| Standards | AWWA C530, ISO 9001, BS EN 1074 |
| Fluid Media | Water, Treated effluent, Non-corrosive liquids |
Weight-loaded pallet type
Flammable & toxic media
Emergency venting
Pipe-mounted installation
Hydro Axis Valves Pressure/Vacuum Relief Valves (PVRV), BTS-5000 Series, are direct acting, low pressure devices specifically designed to protect tanks, process systems and equipment from over pressure and excessive vacuum — also commonly known as breather valves or conservation vents. Modular construction with a top & bottom guided pallet, cushioned air seating and fully field-replaceable pallet and seat delivers excellent set-point accuracy and high flow capacity across a wide range of pressure and vacuum settings.
| Design & Testing | API 2000 |
| Size Range | 2″ to 16″ |
| Pressure Rating | 150# / PN 10 |
| Flange Drilling | ANSI B16.5 / DIN / JIS |
| MOC | Carbon Steel / Stainless Steel / Aluminum / PTFE Coating / PFA Lined |
| Pressure Weight (Setting Range) | 2 to 43 mbar-g |
| Vacuum Spring (Setting Range) | 43 to 480 mbar-g |
| Pressure Weight (Vacuum Setting) | -0.2 to -43 mbar-g |
| Pressure Spring / Vacuum Spring | Pressure: 69 to 1034 mbar-g; Vacuum: -43 to -480 mbar-g |
| Pressure Weight / Vacuum Spring | Pressure: 2 to 69 mbar-g; Vacuum: -2 to -43 mbar-g |
| Pressure Weight / Vacuum Spring (Hi-P) | Pressure: 69 to 1034 mbar-g; Vacuum: -2 to -43 mbar-g |
Quarter-turn, full bore
Wafer & lug type
Non-slam, single disc
Wedge & parallel slide
Flow regulation
Quarter-turn, sleeved
Hydro Axis Valves Industrial Valves cover the full range of general-purpose flow control valves used across process plants, utilities and infrastructure. Our Ball valves offer quarter-turn shut-off with low torque and full bore flow. Butterfly valves provide compact, lightweight throttling for large-bore lines. Swing Check valves prevent reverse flow with a hinged disc. Gate valves give tight shut-off in isolation duties. Globe valves excel at flow regulation and pressure drop control. Plug valves deliver fast quarter-turn operation with PTFE-lined bodies for corrosive service. All valves are manufactured in-house with material traceability and hydrostatic test certificates.
| Size Range | ½″ to 24″ (DN15 – DN600) |
| Pressure Rating | PN10 to PN40 · ANSI 150# to 300# |
| Operating Temperature | –20°C to 250°C (depending on seat) |
| Body Material | WCB Carbon Steel, SS304, SS316, Cast Iron, Ductile Iron |
| Seat / Seal | PTFE, RPTFE, PFA, Metal, Viton, EPDM |
| End Connection | Flanged (ANSI / DIN), Screwed BSP / NPT, Wafer, Lug |
| Operation | Hand lever, Gear box, Pneumatic / Electric actuator |
| Standards | API 600, API 602, API 609, ASME B16.34, IS 778 |
| Fire-safe | API 607 / API 6FA (optional) |
| Test / Certification | Hydrostatic body & seat test, MTR supplied |
| Fluid Media | Water, Steam, Air, Gas, Oil, Chemical (seat-dependent) |