Product Details

anti-corrosion Fiberglass pipe valve insulation cover, valve shell

Product Description

Our frp valve keep-warm cover is in the lead of the industry,and we can make it according to the customers requiements.

frp valve keep-warm cover structure:

Shell: Flame retardant glass fiber make

insulating layer

Rock wool, glass fiber, aluminum silicate, also can compound heat preservation(can make as your requirments)

Protection Cover features: good performance of heat preservation, no heat leakage, convenient disassembly, thermal insulation material no loss, long life, strong and durable, saving operation maintenance cost; Elegent appearance with smooth surface.

Value cover features

External temperature: environment temperature +25℃±15% ;Internal temperature: thermal insulation layer of the protective sleeve temperature can reach 600 ℃ high;Corrosion resistance: made by glass fiber reinforced plastic, has advantage of corrosion resistance ability, anti-aging;Robustness:FRP cover has certain rigidity, strength, flexibility, convenient for field operation.

Glass fiber reinforced plastic value cover test performance

No.	Item	consequence
1	Heat conductivity coefficient	0.035 W/M.K-0.045 W/M.K
2	Teperature endurance	-60℃-1000℃,no seperation, no crack
3	Moisture absorption	0.3%
4	Density	1.6 - 1.90g/cm3
5	Water absorption	0.3%
6	Water resistance	No bending, deformation, fracture
7	Flexual strengh	≥25Mpa
8	Impact resistance	KJ/n2≥7.5
9	Softening coefficient	0.8
10	Frost-resistance	±50℃ 25 cycles no cracking
11	Acid resistance	0.1N hydrochloric acid 98 hours with no discoloration or hierarchical
12	Alkali resistance	10% Sodium hydroxide for 48 hours with no discoloration or hierarchical
13	Fire resistance	Good

Silicate aluminum refractory fiber mat test performance

NO.	Item	Test value
1	Density	128kg/m3
2	Shot content	5%
3	Alumina content	50.15%
4	Fibre diameter	≤6μm
5	Operating temperature	≤1000℃
6	Heat conductivity coefficient	≤0.095W/m.K

The outside conditions: temperature 300 ℃, environment temperature 10 ℃

Size	Heat loss with no heat preservation(w/h)	Heat loss with heat preservation(w/h)	Heat loss(KJ/day)	Saving cost(CNY)
DN50	583	292	27936	509
DN100	1112	513	57504	1049
DN150	1489	730	72864	1331
DN200	2201	926	12240	2233
DN250	2790	1131	159264	2906
DN300	3100	1328	170112	3104
DN350	3487	1476	193056	3524
DN400	3905	1599	221376	4040
DN450	4322	1810	241152	4401
DN500	4700	2001	259104	4728
DN600	6015	2540	333600	6088
DN700	6938	3201	358752	6547
DN750	7400	3511	373344	6813
DN800	8120	3900	405120	7393
DN900	8996	4980	414336	7561
DN1000	11045	5899	494016	9015

Note:1. 1Kcal=1.163W=4.187KJ.
2. On the basis of the current market situation, 1 kg of standard coal to generate heat of 5000 kcal.