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Porduct Introduction
STDE(B) Series thermal expansion valve adopts the top class technic,
is used for air-conditioner system,heat pump,auto air-conditioner,chiller
,reefer and traditional refrigeration system.
Throughway Valve,Solder connection
STDE: One-way outfall type
STDEB: Equalization outfall type,developed for 8-19TR to prevent the
change of static superheat caused by the change of condensing pressure
and evaporating load.
Have K,AC and N series for different temperature range
Suited for R22,R134a and R407C

Technical Parameter

Max. sensing bulb temperature	150℃
Max.Valve Body Temperature	120℃
Max. short term Valve Body Temperature	150℃
Max. Work Pressure	28bar
Max.Testing Pressure	32bar

MOP
te: evaporating temperature
Pe: evaporating pressure

Refrigerant	K Series -25℃～+10℃	AC Series -10℃～+15℃
Refrigerant	te＝+15℃/+60℉	te＝+20℃/+68℉
R22	Pe＝100psi/6.9bar	Pe＝120psi/8.5bar
R407C	Pe＝95psi/6.6bar	Pe＝115psi/8.0bar
R134a	Pe＝55psi/5bar

R22
K＝-25℃～+10℃ MOP100psi/8bar
AC＝-10℃～+15℃ MOP120psi/9bar
N＝-40℃～+10℃
SS＝4K

Outfall Type	Model	Connection Size		Nominal Refrigerating Capacity
Outfall Type	Model	in	mm	Nominal Refrigerating Capacity
One-way	STDEX3	3/8×5/8	10×16	10.5
	STDEX3	1/2×5/8	12×16	10.5
	STDEX4	1/2×7/8	12×22	14
	STDEX6	1/2×5/8	12×16	21
	STDEX6	1/2×7/8	12×22	21
	STDEX6	5/8×7/8	16×22	21
	STDEX7.5	5/8×7/8	16×22	26
	STDEX8	5/8×7/8	16×22	28
	STDEX11	5/8×7/8	16×22	38.5
	STDEX11	5/8×1-1/8	16×28	38.5
	STDEX12.5	5/8×7/8	16×22	44
	STDEX12.5	5/8×1-1/8	16×28	44
	STDEX16	5/8×1-1/8	16×28	56
	STDEX16	7/8×1-1/8	22×28	56
	STDEX19	7/8×1-1/8	22×28	66.5
Equalization	STDEBX8	5/8×7/8	16×22	28
	STDEBX11	5/8×7/8	16×22	38.5
	STDEBX11	5/8×1-1/8	16×28	38.5
	STDEBX12.5	5/8×7/8	16×22	44
	STDEBX12.5	5/8×1-1/8	16×28	44
	STDEBX16	5/8×1-1/8	16×28	56
	STDEBX16	7/8×1-1/8	22×28	56
	STDEBX19	7/8×1-1/8	22×28	66.5

R407C
K＝-25℃～+10℃ MOP95psi/7.5bar
AC＝-10℃～+15℃ MOP115psi/9bar
N＝-40℃～+10℃
SS＝4K

Outfall Type	Model	Connection Size		Nominal Refrigerating Capacity
Outfall Type	Model	in	mm	Nominal Refrigerating Capacity
Single	STDEZ3	3/8×5/8	10×16	10.5
	STDEZ3	1/2×5/8	12×16	10.5
	STDEZ4	1/2×7/8	12×22	14
	STDEZ6	1/2×5/8	12×16	21
	STDEZ6	1/2×7/8	12×22	21
	STDEZ6	5/8×7/8	16×22	21
	STDEZ7.5	5/8×7/8	16×22	26
	STDEZ8	5/8×7/8	16×22	28
	STDEZ11	5/8×7/8	16×22	38.5
	STDEZ11	5/8×1-1/8	16×28	38.5
	STDEZ12.5	5/8×7/8	16×22	44
	STDEZ12.5	5/8×1-1/8	16×28	44
	STDEZ16	5/8×1-1/8	16×28	56
	STDEZ16	7/8×1-1/8	22×28	56
	STDEZ19	7/8×1-1/8	22×28	66.5
Equalization	STDEBZ8	5/8×7/8	16×22	28
	STDEBZ11	5/8×7/8	16×22	38.5
	STDEBZ11	5/8×1-1/8	16×28	38.5
	STDEBZ12.5	5/8×7/8	16×22	44
	STDEBZ12.5	5/8×1-1/8	16×28	44
	STDEBZ16	5/8×1-1/8	16×28	56
	STDEBZ16	7/8×1-1/8	22×28	56
	STDEBZ19	7/8×1-1/8	22×28	66.5

R134a
K＝-25℃～+10℃ MOP55psi/5bar
N＝-40℃～+10℃
SS＝4K

Outfall Type	Model	Connection Size		Nominal Refrigerating Capacity
Outfall Type	Model	in	mm	Nominal Refrigerating Capacity
Single	STDEN2.3	3/8×5/8	10×16	8.1
	STDEN2.3	1/2×5/8	12×16	8.1
	STDEN3.1	1/2×7/8	12×22	10.8
	STDEN4.6	1/2×5/8	12×16	16.2
	STDEN4.6	1/2×7/8	12×22	16.2
	STDEN4.6	5/8×7/8	16×22	16.2
	STDEN5.8	5/8×7/8	16×22	20
	STDEN6.2	5/8×7/8	16×22	22
	STDEN8.5	5/8×7/8	16×22	30
	STDEN8.5	5/8×1-1/8	16×28	30
	STDEN9.6	5/8×7/8	16×22	34
	STDEN9.6	5/8×1-1/8	16×28	34
	STDEN12.3	5/8×1-1/8	16×28	43
	STDEN12.3	7/8×1-1/8	22×28	43
	STDEN14.6	7/8×1-1/8	22×28	51
Equalization	STDEBN6.2	5/8×7/8	16×22	22
	STDEBN8.5	5/8×7/8	16×22	30
	STDEBN8.5	5/8×1-1/8	16×28	30
	STDEBN9.6	5/8×7/8	16×22	34
	STDEBN9.6	5/8×1-1/8	16×28	34
	STDEBN12.3	5/8×1-1/8	16×28	43
	STDEBN12.3	7/8×1-1/8	22×28	43
	STDEBN14.6	7/8×1-1/8	22×28	51

Remark: Nominal refrigerating capacity is based on the condensing temperature 32℃, evaporating temperature 5℃

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