NZ752154B2 - Outlet valve for a riser of a surface irrigation system and riser - Google Patents
Outlet valve for a riser of a surface irrigation system and riser Download PDFInfo
- Publication number
- NZ752154B2 NZ752154B2 NZ752154A NZ75215417A NZ752154B2 NZ 752154 B2 NZ752154 B2 NZ 752154B2 NZ 752154 A NZ752154 A NZ 752154A NZ 75215417 A NZ75215417 A NZ 75215417A NZ 752154 B2 NZ752154 B2 NZ 752154B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- valve
- outlet valve
- riser
- drive member
- outlet
- Prior art date
Links
- 230000002262 irrigation Effects 0.000 title claims abstract 12
- 238000003973 irrigation Methods 0.000 title claims abstract 12
- 239000012530 fluid Substances 0.000 claims abstract 10
- 238000007789 sealing Methods 0.000 claims abstract 2
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K13/00—Devices for grooming or caring of animals, e.g. curry-combs; Fetlock rings; Tail-holders; Devices for preventing crib-biting; Washing devices; Protection against weather conditions or insects
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
- E02B13/02—Closures for irrigation conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
- F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/502—Mechanical actuating means with screw-spindle or internally threaded actuating means actuating pivotable valve members
Abstract
Prior art outlet valves for pipe and riser irrigation systems can be difficult to operate, particularly due to the variation in pressure of the irrigation fluid. In use, the irrigation fluid pressure can vary, particularly if other valves in the system and opened or closed. Provided herein is a riser for a surface irrigation system, the riser having a housing and an outlet valve. The housing has an open upper portion and an outlet defining an orifice through which irrigation fluid is to be discharged. The valve includes an upper closure, a valve member, and an actuating lever. The upper closure is securable to the riser for sealing the open upper portion. The valve member is coupled to the closure and mountable within a flow path of the fluid, the valve member operable for opening and closing the valve, and configured to seat against a valve seat of the housing, and on an upstream side of the orifice, whereby the pressure of fluid within the valve urges the valve member against the seat when the valve is closed. The pivotable actuating lever having one end extending through the orifice and coupled to the valve member, an intermediate fulcrum, and an operable end for operating the valve member to open and close the valve. The outlet valve further includes a drive member that extends between a drive member mount that is provided on the upper closure and the operable end of the actuating lever, the drive member being configured to advance and retract relative to the drive member mount so as to operate the outlet valve.
Claims (14)
1. An outlet valve for a riser of a surface irrigation system, the riser having a housing with an open upper portion and an outlet defining an orifice through which irrigation fluid is 5 to be discharged, wherein the outlet valve includes: an upper closure securable to the riser for sealing the open upper portion; a valve member coupled to the closure and mountable within a flow path of the fluid, the valve member operable for opening and closing the valve, and configured to seat against a valve seat of the housing, and on an upstream side of the orifice, whereby the 10 pressure of fluid within the valve urges the valve member against the seat when the valve is closed; a pivotable actuating lever having one end extending through the orifice and coupled to the valve member, an intermediate fulcrum, and an operable end for operating the valve member to open and close the valve; and 15 a drive member that extends between a drive member mount that is provided on the upper closure and the operable end of the actuating lever, the drive member being configured to advance and retract relative to the drive member mount so as to operate the outlet valve. 20
2. An outlet valve according to claim 1, wherein the actuating lever is slidably coupled to the valve member.
3. An outlet valve according to either claim 1 or 2, wherein the drive member has an external thread, and the drive member mount can include an internally threaded hole, 25 whereby rotation of the drive member causes displacement of the drive member relative to the drive member mount.
4. An outlet valve according to claim 3, further comprising a drive head on an end of the drive member to facilitate rotation of the drive member by coupling with an external 30 tool. – 11–
5. An outlet valve according to any one of the preceding claims, further including an electric drive and a control system mounted on the upper closure to automatically control the outlet valve. 5
6. An outlet valve according to any one of the preceding claims, further including a support arm that extends from the upper closure and supports the actuating lever at the fulcrum.
7. An outlet valve according to claim 6, wherein the support arm is integrally formed 10 with the upper closure.
8. An outlet valve according to any one of the preceding claims, wherein the valve member is pivotably mounted with respect to the orifice and pivots upwardly away from the orifice to open the outlet valve.
9. An outlet valve according to claim 8, wherein the valve member is suspended from the upper closure.
10. An outlet valve according to any one of the preceding claims, further including a 20 vacuum and/or air relief valve.
11. A riser for a surface irrigation system, the riser comprising: a riser housing having an open upper portion and an outlet defining an orifice through which irrigation fluid can flow, and 25 an outlet valve according to any one of the preceding claims.
12. A riser according to claim 11, where the riser housing is in the form of a T-piece with a longitudinal axis of the open upper portion and orifice being substantially 90 degrees apart.
13. A surface irrigation system comprising a pipe network that is connected to a source – 12– of irrigating fluid, and one or more risers according to either claim 11 or 12.
14. A method of operating an outlet valve of a riser of a surface irrigation system, including the steps of providing an outlet valve according to any one of claims 1 to 10, 5 securing the outlet valve to the riser, and moving the operable end of the actuating lever to open and close the outlet valve, wherein moving the operable end of the actuating lever involves operating the drive member to advance and retract the drive member relative to the drive member mount.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2016903934A AU2016903934A0 (en) | 2016-09-28 | Pressure seal riser (PS Riser) An outlet design for surface irrigation for the pipe and riser systems . Our riser design uses the water pressure to a water tight seal against sealing seat, to allow to with hold the increase in pressures without leaking. | |
| PCT/AU2017/051045 WO2018058178A1 (en) | 2016-09-28 | 2017-09-26 | Outlet valve for a riser of a surface irrigation system and riser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ752154A NZ752154A (en) | 2024-09-27 |
| NZ752154B2 true NZ752154B2 (en) | 2025-01-07 |
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