The method for selecting the peach tree varieties in the greenhouse is as follows:
1. Choose early maturing and very early maturing varieties. The main purpose of peach tree greenhouse cultivation is to promote the early release of peach fruit, so it is necessary to choose early maturing and very early maturing varieties.
2. Select the variety that requires low cooling capacity. The cold demand of different varieties is different, the cold demand of the variety is low, the time of natural dormancy is short, and the time of warming up the shed can be advanced in advance, the fruit matures early, and the economic benefit is high.
3. Choose varieties with multiple flower buds, large amount of pollen, high self-cultivation rate, and high yield per year.
4. Choose varieties with good fruit quality. The fruit of the peach tree cultivated in the greenhouse is mainly for fresh consumption, so it is necessary to choose a variety of fruit, hard meat, hard color, bright color, neat fruit shape, high sugar content, storage and transportation.
5, choose the tree body is short, the crown is compact, the flower bud can be formed in the same year, the next year flowering results of the variety.
6. Choose a variety that is adaptable. The temperature and humidity in the greenhouse are relatively high, so it is necessary to select varieties that are not strict with the environment's temperature and humidity conditions, soil adaptability and disease resistance.
7. Choose the variety with the same flowering period. In the same greenhouse, 2-3 varieties with relatively uniform flowering period should be selected, which can pollinate each other, increase the fruit setting rate and increase the yield.
V-Profile Press fitting pipeline system is widely used in cold and hot water supply, heating supply, fire protection, medicinal gas, industrial petroleum pipeline system etc.
Compared with traditional pipeline system, it`s not only more economical, safer and healthier, but also easier and faster for installation with longer service life.
1. Press fitting range:
Coupling -- Equal coupling, Reducing coupling, Slip coupling, coupling with male/ female threads;
Elbow -- Equal elbow, Elbow 90°, Elbow 45°, Reducing elbow, Elbow with plain end, Elbow with wall plate, and Elbow with male/ female threads;
Tee -- Equal tee, Reducing tee, Tee with wall plate, and Tee with male/ female threads;
Others-- Pipe cap, Pipe Bridge and Flange connector.
2. Material: Stainless steel 304L, Edelstahl 1.4306/ Edelstahl 1.4301, AISI304L, Inox304L;
Stainless steel 316L, Edelstahl1.4404, AISI316L, Inox316L;
Galvanized carbon steel, 1.0034C-Stahl, Kohlenstoffstahl, ACCIAIO AL CARBONIO.
3. Size: 3/8``-4``inch or as request, pipe wall thickness: 1.0--2.0mm
Sizes range:
DVGW W534:1995: 15, 18, 22, 28, 35, 42, 54, 76.1, 88.9, 108mm.
JIS G 3448-1980: 15.88, 22.22, 28.58, 34.00, 42.7, 48.6, 76.1, 88.9, 108mm.
4. Standard:
Press fitting standard: (DIN) DVGW W534-1995; (JIS) JWWA G116:2001; GB/T 19228.1-2003
Pipe standard: DIN10312:2003; GB/T 19228.2-2003
O-ring sealing standard: CEN EN 681-1:2006; GBT 19228.3-2003
5. O-Ring Seal: "Chlorinated butyl rubber" (CIIR), EPDM, HNBR, NBR and FKM, etc.
EPDM (black): max working pressure 16bar, working temperature from -20℃ to 120℃, Suit medium: cold and hot water, compressed Air etc.
6. Galvanization: all carbon steel pipe fittings are plated with rust-resistant zinc.
7. Anneal: all stainless steel pipe fittings are annealed in inert gases before packing.
Installation and Connection Order
Equipments And Quality Control
Orderly Workshop
Efficient Anneal Equipment
Pressure Testing
Tensile Testing
Stainless Steel V-Profile Press Fittings(JIS)
Stainless Steel V-Profile Press Fittings,Equal Tee Press Pipe Fitting,V Profile Steel Elbow Press Fitting,V Profile Female Tee Press Fitting
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