Introduction
These test pumps are a fast, safe and simple method for hydrostatic testing, ideally suited to work with the above plugs or on a stand alone basis eg heat exchanger tubes, pipes, pressure vessels, hoses, etc.
These test pumps are for oil, water or aggressive medium are complete hydraulic units ready for connection which are provided for generating operating pressure up to 1,500bar.
The pressure will be generated by means of a pneumatically operated pump. The pump will be connected to the existing industrial compressed-air ductwork system.
Advantages
- Standstill of the pump when reaching the set final pressure
- No energy consumption in case of long pressure holding times
- No dissipated heat during the pressure holding phase
- Substitute of leakage by automatic re-delivery through the pump
- Regulator to control inlet air supply
- High pressure bleed valve and high pressure outlet
- Simple air-driven pump
- Test in the field or in the shop
- Simple installation, operationally reliable, easy to maintain
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Commodity: Sodium Hydrosulfite Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate CAS No.: 7775-14-6 Molecular Weight: 174.10 Chemical Formula: Na2S2O4 Product Description Appearance: White, crystalline powder. Product Feature Odor: Slight irritative. Specific Gravity: Unavailable Solubility: Soluble in water. Density: 2.19 pH: 6-7 pH Test-Method: PH test paper. % Volatiles by volume @ 21C (70F): 0 Boiling Point: Not applicable. Melting Point: >300 C Decomposes. Vapor Pressure (mm Hg): No information found. Bulk Density: ~0.9 Evaporation Rate (BuAc=1): No information found. Application 1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching . 2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps. 3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products, 4. in mineral, the compound of thiourea and other sulphides. 5. as reducing agent in chemical industry. 6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms. Packaging 50kg/100kg net in iron drums with double PVC bags Product Specification/Models NDEX 90%, 88%, 85%. FOOD ADDITIVE Na2S2O4, 90%, 88%, 85%, Fe 20ppm ZincZnOther heavy metal calculated as Pb, 1ppm Water Insolubles05% Shelf Life(month)12
