CN2219991Y - Monolithic iron and plastics binding anticorrosive diaphragm valve - Google Patents
Monolithic iron and plastics binding anticorrosive diaphragm valve Download PDFInfo
- Publication number
- CN2219991Y CN2219991Y CN 95210741 CN95210741U CN2219991Y CN 2219991 Y CN2219991 Y CN 2219991Y CN 95210741 CN95210741 CN 95210741 CN 95210741 U CN95210741 U CN 95210741U CN 2219991 Y CN2219991 Y CN 2219991Y
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- CN
- China
- Prior art keywords
- valve
- diaphragm
- iron
- plastic
- valve body
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- Expired - Fee Related
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Abstract
The utility model relates to a monolithic iron and plastics binding anticorrosive diaphragm valve which is composed of a valve body (10), a valve hood (4), a valve clack (5), a valve shaft (1), a valve-stem nut (2), a hand wheel (3), and a rubber diaphragm (6); the surface of the inner cavity channel of the valve body (10) to both sides flange (9) is hot melted one layer of plastic lining (8); the external surface of the rubber diaphragm (6) at the end surface of the valve clack (5) is provided with a plastic diaphragm (7). The plastic lining (8) is formed by one-step hot melt rotate molding, so that the lining has no seam, has strong adhesion, and is smooth, corrosion prevention, low temperature resistance, shock resistance, and abrasion resistant. The utility model can be used for the controlling and conveying of the media in industries like petroleum, chemical industry, metallurgy, pharmacy, environmental protection, etc.
Description
The utility model relates to a kind of anticorrosion valve, particularly moulds the anticorrosion valve of integrated bond structure about iron.
At present, have two for preventing the major measure that Korrosionsmedium corrodes valve body structure, the first adopts the stainless steel material manufacturing, and expensive and corrosion-resistant monotony is difficult to generally use because of material price; It two is that lining pastes one deck anticorrosive on the valve channel wall, as plastic layer or rubber layer, because body cavity passage complications, adopt tackiness agent to paste in type plastic film or rubber membrane, whip stitch is many, air pocket and moisture content in stickup face, make and paste sticking thing displacement, delamination and bubbling influence antiseptic effect, and the complex process manufacture difficulty is big.CN2083665 proposes to adopt the film backing layer not address the aforementioned drawbacks yet, and the line with rubber layer also is easy to wear out.
The utility model purpose is the defective at existing anticorrosion valve, proposes a kind of making simply, corrosion resistant performance is good, low-cost anticorrosion membrane valve.
The utility model is realized above-mentioned purpose with following technique measures.
Iron is moulded the anticorrosion membrane valve of integrated bond, it comprises valve body, valve gap, flap, diaphragm of rubber sheet, handwheel, valve rod and Stem Mut, characteristics are to mould the plastic lining of integrated bond at the body cavity passage to the surperficial bonding layer iron of two side flanges, at the diaphragm of rubber sheet outer surface coating plastic diaphragms sheet of flap end face.
The advantage of such scheme is that iron moulds that bonding firmly remaining moisture content or gas during hot melting plastic in iron surface and the micropore are evaporated only, and making iron mould binding face does not have the space, can the bubbling delamination; Because the hot melting plastic good fluidity, the dead angle is not stayed in automatic coating in the passage bending place, improves the product anticorrosive quality; Heat is melted coating plastic certain elasticity, can expand with heat and contract with cold synchronously with cast iron valve body, is not subjected to displacement disengaging, increases the service life; Because the hot melt once-through, easier than lining subsides method, material is economized cheap, and adapts to model valve how wide in variety machine shaping.
Fig. 1 is the utility model internal structure partial section view
Fig. 2 is the spool sectional drawing
Be described further below in conjunction with 1,2 pairs of example structure of accompanying drawing.
This valve is made up of valve body (10), valve gap (4), handwheel (3), valve rod (1), Stem Mut (2), flap (5) and diaphragm of rubber sheet (6), the keying of this valve is to be rotated by handwheel (3), make valve rod (1) in Stem Mut (2), do axial motion and drive flap (5) lifting, reach the fluid that cuts off or connect valve body two ends runner and pass through.Valve body (10) bore passages is moulded the plastic lining (8) of whole hot melt adhesive by iron to the flange outer surface.This iron is moulded whole hot melt glued construction and is realized by rotational molding technology, give valve body (10) heating during moulding, and make its rotation, when being heated to uniform temperature, spray thermoplastic resin powder's material to valve body (10) inner chamber and two side flanges (9) limit, because the turning effort of forming equipment, thermoplastic resin forms layer of even plastic lining (8).Toner is polyethylene or teflon.Plastic lining thickness is decided on valve body inside nominal diameter size, is 25mm as latus rectum, and inside liner thickness is 2.5mm; Latus rectum is for being 50mm, and inside liner thickness is 3mm; Latus rectum is 250mm, and inside liner thickness is 4mm.
Flap (5) outside has linked the diaphragm of rubber sheet (6) of choked flow seal action, outside the diaphragm of rubber sheet, cover one deck plastic diaphragms sheet (7), this layer is generally selected polyflon for use, also available polyethylene resin when Environmental Conditions is better, its shape and external dimension are identical with diaphragm of rubber sheet (6), plastic diaphragms sheet (7) central protuberance when moulding partly embeds a clamp-screw (11), these screw (11) one ends pass diaphragm of rubber sheet (6) center hole and to be located at flap (5) central axle sleeve (12) fastening, and a tenon that joins with valve rod is established on central axle sleeve (12) top.Central axle sleeve (12) had both made plastic diaphragms sheet and diaphragm of rubber sheet combine closely with clamp-screw (11), can rotate with valve rod (1) again and drive flap (5) lifting.
Claims (3)
1, iron is moulded the anticorrosion membrane valve of integrated bond, it comprises valve body (10), valve gap (4), flap (5), diaphragm of rubber sheet (6), valve rod (1), Stem Mut (2) and handwheel (3), it is characterized in that valve body (10) bore passages moulds the plastic lining (8) of integrated bond to the surperficial bonding layer iron of two side flanges (9), diaphragm of rubber sheet (6) the outer surface coating plastic diaphragms sheet (7) of flap (5) end face
2, iron as claimed in claim 1 is moulded the anticorrosion membrane valve of integrated bond, its domestic animal is that plastic diaphragms sheet (7) central protuberance partly embeds clamp-screw (11), and clamp-screw (11) one ends pass the diaphragm of rubber center hole and be located at flap (5) central axle sleeve (12) fastening.
3, iron as claimed in claim 1 is moulded the anticorrosion membrane valve of integrated bond, it is characterized in that plastic lining (8) thickness is 2.5-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210741 CN2219991Y (en) | 1995-05-09 | 1995-05-09 | Monolithic iron and plastics binding anticorrosive diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95210741 CN2219991Y (en) | 1995-05-09 | 1995-05-09 | Monolithic iron and plastics binding anticorrosive diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2219991Y true CN2219991Y (en) | 1996-02-14 |
Family
ID=33861375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95210741 Expired - Fee Related CN2219991Y (en) | 1995-05-09 | 1995-05-09 | Monolithic iron and plastics binding anticorrosive diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2219991Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797870A (en) * | 2011-05-26 | 2012-11-28 | 南京金口机械制造有限公司 | Sanitary aseptic diaphragm valve |
| CN103953747A (en) * | 2014-05-21 | 2014-07-30 | 江苏宏博机械制造有限公司 | Special pneumatic diaphragm valve for chlor-alkali |
-
1995
- 1995-05-09 CN CN 95210741 patent/CN2219991Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797870A (en) * | 2011-05-26 | 2012-11-28 | 南京金口机械制造有限公司 | Sanitary aseptic diaphragm valve |
| CN103953747A (en) * | 2014-05-21 | 2014-07-30 | 江苏宏博机械制造有限公司 | Special pneumatic diaphragm valve for chlor-alkali |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |