Hot-selling Oil Free Small Screw Air Compressor - Semi-Hermetic Reciprocating Compressor R22 R404A R134A R507A 4VD-15.2-4VG-30.2 – Daming Refrigeration Technology

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abide by the contract", conforms on the market requirement, joins from the market competition by its good quality likewise as provides more comprehensive and superb support for customers to let them become large winner. The pursue of the company, is definitely the clients' pleasure for Daming Compressor, Box Type Refrigeration Unit, Cold Storage Room, We are willing to cooperate with business friends from at home and abroad and create a great future together.

Hot-selling Oil Free Small Screw Air Compressor - Semi-Hermetic Reciprocating Compressor R22 R404A R134A R507A 4VD-15.2-4VG-30.2 – Daming Refrigeration Technology Detail:

1. ZheJiang DaMing Refrigeration Technology Co., Ltd. Profile

Business Type: We are Manufacturer/Factory/Plant
Main Products: compressor ，compressor unit .（reciprocating compressor， scroll compressor， screw compressor)
Number of Employees: 300+
Year of Establishment: 1990s
Management System Certification: ISO 9001
Location: ZheJiang, China (Mainland)

2. Basic Information

Series: 4VD-15.2-4VG-30.2 Explanation of model designation
Compressor Body Material: Iron 4/6 ———————Cylinders
Application : Refrigeration S ———————-Model
Refrigeration gas: R22, R404A,R134A,R507A 15 ———————–Horse Power
Input Voltage: 3Ф 380V-420V/50HZ;440V-480V/60HZ 1 ———————–Series Code
Origin: Zhejiang, China D/G———————D for Low Temp;G for mid & High Temp
Specification: CE, CCC,ISO9001

3. Application Limits ( Suction Gas Temperature 20°C）

R404A & R507A

R407C

R22

To —— Evaporating temperature(°C)
Toh —- Suction gas temperature(°C)
Toh —- Suction super heat(K)
Tc ——-Condensing temperature(°C)
Additional cooling

Additional cooling&limited suction gas temperature

Additional cooling&liquid injection cooling system

4.Product Details

4.1 Key Specifications/Special Features -Technical Data Sheet

Model

NominalPower

HP/KW

Displacementm³/h 50Hz

Number ofCylinders×Diameter×Stoke

Exhaust & Suction Valve mm/IN

Oil Volume（L）

Power V/φ/Hz

Electrical Parameter

Crankcase Heater(220V)W

Oil SupplyMethod

Weight(Including Oil)

DLExhaust Valve

SLSuction Valve

Max OperatingCurrent（A）

Starting/ LockedCurrent（A）

4VD-15.2

15/10.5

73.7

4×φ70×55

φ28

φ42

380-420YY/3/50 440-480YY/3/60

81/132

140

Forced-lubrication

183

4VG-25.2

25/18.5

73.7

4×φ70×55

φ28

φ54

4.5

116/193

140

203

4VD-20.2

20/15

84.6

4×φ75×55

φ28

φ54

4.5

97/158

140

192

4VG-30.2

30/22

84.6

4×φ75×55

φ28

φ54

4.5

135/220

140

206

4.2 Refrigerating Performance – Cooling Capacity with R22

Model	Condensing Temperature℃	Cooling Capacity Qo（W） Power Consumption Pe(kW)
			Evaporating Temperature ℃
			12.5	10	7.5	5	0	-5	-10	-15	-20	-25	-30	-35	-40
4VD-15.2	30	Qo						52300	42700	34450	27350	21300	16400	12000	8310
	30	Pe						12.73	11.93	11.01	9.98	8.82	8.25	7.13	5.98
	40	Qo						46850	38100	30500	24050	18500	13840	9800	6440
	40	Pe						14.91	13.81	12.56	11.19	9.76	8.67	7.30	5.90
	50	Qo						41700	33700	26800	20900	15800	11500	7920	4970
	50	Pe						17.11	15.67	14.13	12.47	10.85	9.21	7.53	5.79
4VG-25.2	30	Qo	99300	91200	83600	76500	63700	52600	42950	34650	27500	21400	16260
	30	Pe	13.89	13.74	13.56	13.34	12.84	12.22	11.48	10.63	9.67	8.59	7.41
	40	Qo	89700	82300	75400	68900	57300	47150	38350	30800	24250	18670	13940
	40	Pe	16.75	16.47	16.16	15.82	15.05	14.17	13.18	12.07	10.85	9.52	8.08
	50	Qo	80500	73800	67600	61700	51100	41950	33950	27050	21100	16030
	50	Pe	19.56	19.16	18.74	18.27	17.25	16.10	14.83	13.44	11.94	10.33
4VD-20.2	30	Qo						60000	48950	39500	31400	24500	18940	13920	9670
	30	Pe						14.64	13.67	12.63	11.51	10.29	9.65	8.40	7.10
	40	Qo						53700	43700	35100	27750	21500	16080	11430	7530
	40	Pe						17.39	16.04	14.60	13.07	11.42	10.35	8.75	7.14
	50	Qo						47800	38750	30950	24200	18350	13390	9230	5790
	50	Pe						20.10	18.40	16.65	14.89	13.14	11.23	9.19	7.06
4VG-30.2	30	Qo	114200	104800	96000	87800	73100	60400	49300	39800	31650	24700	18840
	30	Pe	16.42	16.23	16.01	15.74	15.11	14.33	13.44	12.45	11.36	10.21	9.00
	40	Qo	103000	94500	86500	79100	65700	54000	44000	35350	27950	21650	16330
	40	Pe	19.78	19.46	19.09	18.68	17.74	16.67	15.49	14.20	12.83	11.40	9.92
	50	Qo	92300	84600	77400	70700	58600	48100	39000	31200	24500	18810
	50	Pe	23.40	22.90	22.30	21.70	20.40	19.04	17.57	16.05	11.49	12.91
Based on 20℃ suction gas temperature,50Hz,without liquid subcooling.
	VARICOOL system,additional cooling,position of suction valve changed.
	Additional cooling or limited suction gas temperature.
	Additional cooling and CIC system.

Refrigerating Performance - Cooling Capacity with R404A,R507A

Model	Condensing Temperature℃	Cooling Capacity Qo（W） Power Consumption Pe(kW)
		Evaporating Temperature ℃
			7.5	5	0	-5	-10	-15	-20	-25	-30	-35	-40	-45
4VD-15.2	30	Qo				58500	48400	39700	32200	25750	20250	15560	11630	8350
	30	Pe				15.78	14.84	13.79	12.63	11.40	10.10	8.77	7.43	6.10
	40	Qo				49850	41150	33600	27100	21500	16730	12660	9240	6380
	40	Pe				18.16	16.80	15.34	13.82	12.25	10.65	9.05	7.47	5.93
	50	Qo					33950	27600	22050	17330	13270	9820	6920
	50	Pe					18.50	16.67	14.80	12.91	11.03	9.17	7.37
4VG-25.2	30	Qo	90700	83200	69700	57900	47750	38950	31350	24800	19210	14460	10460
	30	Pe	16.14	16.07	15.72	15.14	14.36	13.41	12.32	11.11	9.81	8.46	7.08
	40	Qo	77400	71000	59500	49400	40650	33000	26450	20800	15930	11800	8320
	40	Pe	19.56	19.22	18.37	17.32	16.11	14.76	13.31	11.78	10.20	8.60	7.00
	50	Qo	64500	59100	49500	41000	33600	27200	21600	16830	12740	9260	6340
	50	Pe	22.78	22.18	20.84	19.33	17.71	15.98	14.18	12.34	10.49	8.65	6.86
4VD-20.2	30	Qo				67100	55500	45400	36750	29350	23000	17600	13060	9260
	30	Pe				18.22	17.12	15.89	14.55	13.12	11.62	10.08	8.53	6.97
	40	Qo				57200	47300	38700	31200	24800	19250	14540	10540	7160
	40	Pe				20.94	19.36	17.68	15.93	14.13	12.30	10.47	8.65	6.89
	50	Qo					38750	31650	25450	20100	15480	11510	8120
	50	Pe					21.25	19.15	17.02	14.87	12.73	10.63	8.60
4VG-30.2	30	Qo	103800	95300	79900	66500	54900	44900	36250	28800	22450	17040	12480
	30	Pe	19.21	19.07	18.57	17.81	16.84	15.70	14.41	13.02	11.57	10.09	8.61
	40	Qo	89100	81800	68600	57000	47000	38250	30700	24200	18610	13860	9850
	40	Pe	23.37	22.88	21.73	20.38	18.88	17.26	15.56	13.81	12.06	10.33	8.68
	50	Qo	74300	68200	57100	47400	38900	31500	25100	19580	14840	10810	7410
	50	Pe	27.01	26.20	24.46	22.58	20.60	18.56	16.50	14.45	12.45	10.54	8.76
Based on 20℃ suction gas temperature,50Hz,without liquid subcooling.
	Additional cooling or limited suction gas temperature.
	Additional cooling and CIC system.

Refrigerating Performance - Cooling Capacity with r134a

Model	Condensing Temperature℃	Cooling Capacity Qo（W） Power Consumption Pe(kW)
			Evaporating Temperature ℃
			12.5	10	7.5	5	0	-5	-10	-15	-20	-25	-30
4VD-15.2	30	Qo	69100	62800	57000	51600	49150	33700	26700	20850	15920	11840	8500
	30	Pe	10.40	10.07	9.74	9.41	8.74	8.07	7.38	6.67	5.95	5.20	4.42
	40	Qo	61300	55700	50400	45600	37000	29600	23350	18100	13700	10060	7080
	40	Pe	12.46	11.93	11.43	10.93	9.97	9.04	8.13	7.23	6.32	5.39	4.44
	50	Qo	54100	49050	44400	40100	32400	25800	20250	15570	11660	8430	5800
	50	Pe	14.24	13.54	12.87	12.22	10.99	9.81	8.69	7.59	6.51	5.43	4.34
4VG-25.2	50	Qo	54100	49050	44400	40100	32400	25800	20250	15570	11660
	50	Pe	13.77	13.13	12.52	11.92	10.78	9.68	8.62	7.58	6.55
	60	Qo	47100	42700	38600	34800	28000	22200	17320	13190	9760
	60	Pe	15.04	14.27	13.53	12.81	11.44	10.13	8.89	7.69	6.53
	70	Qo	40250	36450	32900	29600	23750	18740	14500	10940	7980
	70	Pe	16.09	15.21	14.36	13.53	11.96	10.48	9.07	7.74	6.45
4VD-20.2	30	Qo	78500	71400	64800	58600	47700	38350	30450	23800	18190	13560	9770
	30	Pe	12.45	12.15	11.83	11.50	10.78	10.00	9.16	8.26	7.31	6.32	5.28
	40	Qo	69700	63300	57400	51900	42100	33750	26650	20700	15700	11570	8190
	40	Pe	14.65	14.14	13.62	13.09	12.03	10.95	9.85	8.73	7.59	6.44	5.28
	50	Qo	61500	55800	50500	45650	36950	29500	23200	17870	13430	9760	6770
	50	Pe	16.67	15.93	15.20	14.48	13.06	11.67	10.31	8.97	7.66	6.37	5.10
4VG-30.2	50	Qo	61500	55800	50500	45650	36950	29500	23200	17870	13430
	50	Pe	16.09	15.42	14.76	14.10	12.79	11.50	10.22	8.94	7.67
	60	Qo	53700	48650	44000	39700	32000	25450	19890	15210	11300
	60	Pe	17.65	16.80	15.96	15.14	13.54	11.99	10.49	9.03	7.60
	70	Qo	45900	41600	37600	33850	27200	21550	16720	12680	9320
	70	Pe	19.22	18.16	17.14	16.15	14.25	12.46	10.75	9.12	7.55
Suction gas temperature 20℃,50Hz,without liquid subcooling.
	Additional cooling or limited suction gas temperature.

4.3 Processing Features

The compressors of Daming suit different working condition and refrigerants,and could maximally satisfy your requirements for the refrigerating system.

Developed technology,compact dimension ，Small volume and space .

High precision machining to ensure the compressor confirm with the standard ,CNC processing center ,Concentricity due to specific processing technology ,minimal dead space .

Steady operation,small vibracation and low noise ,Excellent stability .

Refrigerant like R22 and R404 are adopted to protect the environment ,For mid & low temperature application .

Electrical motor protect device ,PTC sensor .

Wear resistant driver gear ,Chrome plated piston rings and aluminium pistons ,Hardened crank-shaft ,Low friction bearing set .

Efficient valve plate design,high refrigerating capacity and low energy consumption ,Efficient compression rate ,Valve reed made of imported impact resistant spring steel .

General spare parts,convenient for maintenance.

4.4 Cross Reference (Application Limits )

Cross Reference
Item Description	Daming Model	Copeland Model	Bitzer Model	Displacement (KW)
2 cylinders	BFS31	C-0300		12.2
	BFS41	C-0400		14.7
	BFS51	C-0500		18.4
	BFS81	C-0800		26.6
	BFS101	C-1000		36

3 cylinders	BFS151	C-1500		54

4 cylinders	4S151D	4SLW-1500		73.6
	4S251G	4SHH-2500		73.6
	4S201D	4STW-2000		84.5
	4S301G	4STH-3000		84.5

6 cylinders	6S251D	6SLW-2500		110.5
	6S351G	6SHH-3500		110.5
	6S321D	6STW-3200		126.8
	6S401G	6SJH-4000		126.8
	6S401D	6SUW-4000		151.6
	6S501G	6SKH-5000		151.6

Small size 2 cylinders	2YD-2.2		2DC-2.2	13.5
	2YG-3.2		2DC-3.2	13.5
	2YD-3.2		2CC-3.2	16.2
	2YG-4.2		2CC-4.2	16.2

Small size 4 cylinder ( hexagon shape)	4YD-3.2		4FC-3.2	18.1
	4YG-5.2		4FC-5.2	18.1
	4YD-4.2		4EC-4.2	22.7
	4YG-6.2		4EC-6.2	22.7
	4YD-5.2		4DC-5.2	26.84
	4YG-7.2		4DC-7.2	26.84
	4YD-6.2		4CC-6.2	32.48
	4YG-9.2		4CC-9.2	32.48

Medium size 4 cylinders (hexagon shape )	4YD-8.2		4TCS-8.2	41.33
	4YG-12.2		4TCS-12.2	41.33
	4YD-10.2		4PCS-10.2	48.5
	4YG-15.2		4PCS-15.2	48.5
	4YD-12.2		4NCS-12.2	56.25
	4YG-20.2		4NCS-20.2	56.25

Large 4 cylinders	4VD-15.2		4H-15.2	73.6
	4VG-25.2		4H-25.2	73.6
	4VD-20.2		4G-20.2	84.5
	4VG-30.2		4G-30.2	84.5

Large 6 cylinders	6WD-25.2		6H-25.2	110.5
	6WG-35.2		6H-35.2	110.5
	6WD-30.2		6G-30.2	126.8
	6WG-40.2		6G-40.2	126.8
	6WD-40.2		6F-40.2	151.6
	6WG-50.2		6F-50.2	151.6

Double stage	6WDS-20.2		S6H-20.2	110.5
	6WDS-25.2		S6G-25.2	126.8
	6WDS-30.2		S6F-30.2	151.6

4.5 Compressor Dimensional drawing

4.6 Packaging & Shipment

FOB Port: Ningbo Lead Time:15- 30 days
Packaging Size: 49*44*15 cm Net weight: 62 kg +
Units per Export Carton:1 Gross weight: 70 kg +
Dimensions per Unit:193 × 94 × 87 Centimeters
Weight per Unit:117 Kilograms
Export Carton Weight: 117 Kilograms
Export Carton Dimensions L/W/H:193 × 94 × 87 Centimeters

5. Payment & Delivery

Payment Method: Advance TT, T/T, L/C.

Delivery Details: within 30-50 days after receiving your full payment .

Mark-star

3.7 Primary Competitive Advantage

Small Orders Accepted Brand-name Parts Country of Origin
Distributorships Offered Electronic Link Experienced Staff
Form A Green Product Cost-effective
International Approvals Military Specifications Standard Packaging
Good Price Product Features Product Performance
Prompt Delivery Quality Approvals Reputation
Provide Good Service Sample Available Customized

We have over 30 years of professional experience as a manufacturer of semi-hermetic compressor , scroll compressor , screw compressor ,condensing unit .
We make the compressor according your usage
We have strong researching and developing team to meet your requirement.
There are lot of raw material suppliers around our factory, our factory in Zhejiang
We supply high quality compressor for many world companies
Our factory got ISO 9001 and apply CE certificate, importantly we have factory which bigger workshop over 20000sq meters .
Small trial orders can be accepted, sample is available .
Our price is reasonable and keep top quality for every clients.

Product detail pictures:

To create much more benefit for consumers is our company philosophy; customer growing is our working chase for Hot-selling Oil Free Small Screw Air Compressor - Semi-Hermetic Reciprocating Compressor R22 R404A R134A R507A 4VD-15.2-4VG-30.2 – Daming Refrigeration Technology, The product will supply to all over the world, such as: Puerto Rico, Kuwait, Lebanon, We'd like to invite customers from abroad to discuss business with us. We can provide our clients with high quality products and excellent service. We are sure that we will have good cooperative relationships and make a brilliant future for both parties.

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