Air Release Valve

Air Release Valve
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butterfly valves

UNI-FLO WAFER BUTTERFLY VALVES, PN16
  • UNI-FLO WAFER BUTTERFLY VALVES, PN16
Uni-Flo Butterfly Valves are suitable for use with fresh water, sewage, sea water, air, food, medicine, oils, acids, alkalis, Salts, etc. Valves are 16 bar rated and suitable for the following temperatures: Liner Options: Buna-N(NBR) < 80°C EPDM < 120°C (Standard) Viton < 150°C Flange Alignment DN40 to DN450 – PN10/PN16/Table D DN500 to DN600 – PN10/PN16* More Info. (.pdf)
  • UNI-FLO U-SECTION FLANGED WAFER BUTTERFLY VALVE, PN16/CL125/150
Uni-Flo U-Section Butterfly valves are designed according to BS 5155 and are 16 bar rated. The narrow face to face allows for wafer type installation, but at the same time has the advantage of a double flanged butterfly valve. The EPDM liner is replaceable and is suitable for fresh water, sewage, sea water, air oils, acids etc. More Info. (.pdf)
UNI-FLO-HIGH-PERFORMANCE-DOUBLE-ECCENTRIC-2-SANSPAR-IMAGE-1.jpg
  • UNI-FLO HIGH PERFORMANCE DOUBLE ECCENTRIC BUTTERFLY VALVES
The Uni-Flow High Performance Butterfly Valve is double flanged and consists of a double offset disc. The “seal on disc design” consists of a resilient seal held in place with a stainless steel retainer on the disc for optimum sealing and allowing maintenance without disassembling the valve. Available in sizes 100mm – 2000mm and pressure ratings for PN16 and PN25 More Info. (.pdf)
uni-flo-wafer-butterfly-valves-polyurethane-liner-PN16-Sanspar-1-2.jpg
  • UNI-FLO WAFER BUTTERFLY VALVES, POLYURETHANE LINER, PN16
Uni-Flo Polyurethane lined Butterfly Valves are mainly used owing to the liner being more resistant to abrasive wear, and in conjunction with the stainless-steel disc can be used on a variety of applications. Valves are 16 bar rated and suitable for the following temperatures: Liner Options: Polyurethane < 100°C (Standard) EPDM < 120°C Viton < 150°C Flange Alignment DN40 to DN450 – PN10/PN16/Table D DN500 to DN600 – PN10/PN16* More Info. (.pdf)

Check Valves

UNI-FLO-DOUBLE-DOOR-WAFER-CHECK-VALVE-SANSPAR-IMAGE
  • UNI-FLO DOUBLE DOOR WAFER CHECK VALVE PN16 FIG 301
The Uni-Flow Double Door Check Valve is a compact wafer design and is a popular choice when space is a major factor in valve selection and pipeline design. The compact design features a non-slam spring-assisted closing and is suitable for water, waste water, oil, weak acids and alkaline liquids etc. Tight closure is obtained by utilising a soft seat in either EPDM or NBR. Available in sizes 50mm – 600mm Cast Iron body with either 304 stainless steel or ductile iron chrome plated disc. More Info. (.pdf)
UNI-FLO THIN WAFER CHECK VALVE, PN16
  • UNI-FLO THIN WAFER CHECK VALVE, PN16
Thin Wafer Check Valves are compact and extremely lightweight and suitable for mounting between a wide range of flanges. Available in steel or 316 stainless steel the Thin Wafer Check has a Viton or EPDM seat for leak proof sealing. Design and manufacture: API 6D Face to face: API 6D Testing according to : API 598 Suitable temperature: NBR: -10~-80°C – EPDM: -10~-120°C – VITON: -10~-150°C Medium: Fresh water, sea water, waste water, food stuff, all kinds of oil, weak acid and alkaline liquid etc. More Info. (.pdf)
UNI-FLO BALL CHECK VALVE FIG BCV
  • UNI-FLO BALL CHECK VALVE FIG BCV
Uni-Flo Ball Check Valves are compact and mainly used to protect wastewater pumping stations. Mainly used on water, sewage water and viscous fluids, the ball check valve consists of a rubber encapsulated ball to back seal any reverse flow. Silent closing, no water hammer Good sealing Full bore flow, large flow Small resistance Loss or water head is 50% lower than swing check valves Installation: horizontal or vertical More Info. (.pdf)
UNI-FLO-DOUBLE-DOOR-WAFER-CHECK-VALVE-SANSPAR-IMAGE
  • UNI-FLO SINGLE DISK WAFER SWING CHECK VALVE FIG 302
The Uni-Flo wafer swing check valve is an economical alternative to the traditional flanged swing check valve. The lightweight wafer type valve consists of a 304 stainless steel disc, and on reverse flow will have a positive shutoff owing to the resilient seat. Low Head Loss Pressure rating – 16 Bar Available in sizes 50mm – 600mm More Info. (.pdf)
UNI-FLO-BS5153-BS4090-CAST-IRON-CHECK-VALVE-FIG-401A-SANSPAR-IMAGE-300x263
  • UNI-FLO CAST IRON SWING CHECK VALVE FIG 401A
Uni-Flo Swing Check Valves are especially suited for the prevention of reverse flow. Designed to BS5153, the valve allows for full flow and can be installed in the horizontal or vertical position. Flange dimensions conform to BS4504 PN10/16 – Can be supplied to suit BS10 Table D/E Face to Face dimensions conform to BS5153 Testing in accordance with BS6755 On request, the valve can be supplied with external lever and counter weight (L.W.) Pressure rating – 16 bar. More Info. (.pdf)

Wedge Gate Valves

6-Uni-flo-resilient-seal-gate-valve-min-sanspar-image
  • UNI-FLO RESILIENT WEDGE GATE VALVE, FIG RSV

Uni-Flo resilient seal valves are designed in accordance with BS5163 or SABS 664. With EPDM rubber encapsulated gate, the Uni-Flo RSV has a smooth straight through bore with no pockets.  Available as handwheel operated or with cap top.

Available in sizes 50mm – 600mm
Flanges drilled conform to DIN2501/BS4504
Normal pressure: 1.6MPa
Shell test pressure: 2.4MPa
Seal test pressure: 1.76MPa
Suitable medium: Water and neutral liquid
Suitable temperature:
NBR &lt; 80°C
EPDM &lt; 120°C

<a class=”su-button su-button-style-default” href=”https://majorvalves.co.za/wp-content/uploads/2022/01/RSV-Uni-Flo-Resilient-Seal-Gate-Valve.pdf” target=”_blank” rel=”noopener noreferrer”>More Info. (.pdf)</a>

  • UNI-FLO CAST IRON INDUSTRIAL PATTERN GATE VALVE

This valve is designed and manufactured according to BS3464

High Pressure & Temperature
Working pressure: 1.0MPa
Shell test pressure: 1.5MPa
Working Temperature: <100°C

Media: Water, oil

Flanges designed and drilled according to BS10 Table “E” or Table “D”

More Info. (.pdf)

Wedge gate valves | Major Valves & Engineering
  • UNI-FLO DIN SOLID WEDGE GATE VALVE FIG 10

Design conforms to: DIN3352

Face to face dimensions conform to DIN3202 F4 F5 available on request

Flanges conform to BS EN1092

More Info. (.pdf)

Knife Gate Valve

UNI-FLO RESILIENT WEDGE GATE VALVE, FIG RSV
  • UNI-FLO RESILIENT WEDGE GATE VALVE, FIG RSV
Uni-directional sealing One piece wafer body Full bore unrestricted flow Replaceable EPDM seal, locked in with a metal seat ring Protected Rising Spindle More Info. (.pdf)
UNI-FLO QM KNIFE GATE VALVE
  • UNI-FLO QM KNIFE GATE VALVE
Bi-directional sealing No groove or cavity in the bore of the valve where slurry can collect Fully moulded and reinforced body seal. The rigidity of the seal prevents creep of the seal when the valve is opened or closed, reducing the torque to open and close the valve. Precision machining of the stuffing box cavity that reduces the force required to seal the valve which reduces the opening and closing torques Arched PTFE scrapers across the width of the blade 16 bar pressure rating for valves from DN50 to DN 200 and 10 bar for valves from DN 250 to DN 600 Full bore unrestricted flow Self cleaning flushout corners that prevents deposit build up in the sealing area More Info. (.pdf)
UNI-FLO QP KNIFE GATE VALVE
  • UNI-FLO QP KNIFE GATE VALVE
Integral replaceable polyurethane cartridge that is mechanically retained within a two-piece body Bi-directional sealing No groove or cavity in the bore of the valve where slurry can collect Full bore unrestricted flow Fully moulded and reinforced body seal. The rigidity of the seal prevents creep of the seal when the valve is opened or closed, reducing the torque to open and close the valve. Precision machining of the stuffing box cavity that reduces the force required to seal the valve which reduces the opening and closing torques PTFE scrapers across the width of the blade 16 bar pressure rating for valves from DN50 to DN 200 and 10 bar for valves from DN 250 to DN 400 and 8 bar for valves from DN 450 to DN 600 Self cleaning flushout corners that prevents deposit build up in the sealing area The spindle is protected against slurry splatter, utilising a spindle cover above the handwheel and bellows below More Info. (.pdf)
UNI-FLO RESILIENT WEDGE GATE VALVE, FIG RSV
  • UNI-FLO QW SLURRY KNIFE GATE VALVE

Two replaceable elastomer sleeves that forms the bore of the valve

Bi-directional sealing

Full bore unrestricted flow

No groove or cavity in the bore of the valve where slurry can collect

The spindle is protected against slurry splatter, utilising a spindle cover above the handwheel and bellows below

More Info. (.pdf)

Diaphragm Valve

UNI-FLO STRAIGHT THROUGH RUBBER LINED DIAPHRAGM VALVE FIG DV
  • UNI-FLO STRAIGHT THROUGH RUBBER LINED DIAPHRAGM VALVE FIG DV
Design and manufacture confirm to BS5156 Flange dimensions confirm to BS4504 PN10 Working pressure: DN50-DN100 1.0MPa DN125-DN150 0.6MPa DN200-DN300 0.35Mpa More Info. (.pdf)
UNI-FLO QM KNIFE GATE VALVE
  • UNI-FLO QM KNIFE GATE VALVE

Straight through body design for low pressure drop
Bi-directional sealing
Valve can be installed in any position Flexible closure even with solids present in the valve bore
Non-rising spindle
Self-cleaning trapezoidal thread on the spindle
Fully lined flanges to prevent damage from over torqueing
Rubber injection molded body lining
Ductile iron body (not grey cast iron)
Working parts isolated from abrasive media

More Info. (.pdf)

valve strainer

UNI-FLO DIN CAST IRON STRAINER
  • UNI-FLO DIN CAST IRON STRAINER

Face to Face dimensions according to DIN 3202 F1 / EN558-1 series 1
Flange dimensions according to BS EN1092
Flange dimensions can be as per BS10 Table D/E, JIS10K, etc
Nominal pressure PN10/PN16
Working Temperature: <200°C
Screwed: BSP or BSPT

More Info. (.pdf)

ball valve

UNI-FLO POLYPROPYLENE BALL VALVES
  • UNI-FLO POLYPROPYLENE BALL VALVES

Temperature ranges -30C to +120C
Pressure 1600KPA
PTFE seats
Chrome plated steel or brass ball
Nickel plated steel or brass blowout-proof stem
Heavy duty chrome plated lever with plastic sleeve
3 x NBR O ring seals on stem
One piece molded body

More Info. (.pdf)

Air Release valves

UNI FLO 25MM AIR RELEASE & VACUUM VALVES
  • UNI FLO 25MM AIR RELEASE & VACUUM VALVES

Leak-proof sealing at all conditions, including low system pressure.

The aerodynamic design of the float provides air flow at a very high velocity but at
the same time the float does not close before the water has reached the valve.

The valve design contains a limited number of parts allowing for easy
dismantling should the need arise.

More Info. (.pdf)

UNI FLO 50MM AIR RELEASE & VACUUM VALVES
  • UNI FLO 50MM AIR RELEASE & VACUUM VALVES

Leak-proof sealing at all conditions, including low system pressure.

The aerodynamic design of the float provides air flow at a very high velocity but at the
same time the float does not close before the water has reached the valve.

The valve design contains a limited number of parts allowing for easy dismantling
should the need arise.

Threaded swivel outlet – BSP female.

More Info. (.pdf)