Yoshitake AL-32T-N is a closed-type safety relief valve specifically designed for cold and hot water applications. It features an all-stainless steel construction with a synthetic rubber (FKM) soft seat to ensure excellent air tightness, making it highly suitable for environments where valve seat leakage is not tolerated. Its closed structure effectively prevents fluid leakage. The valve is approved by JWWA.

Features

• All stainless steel (trim parts: SCS14A and SUS316) offering high corrosion resistance.
• Excellent air tightness ensured by the valve seat incorporating a soft seat. Most suitable for applications where valve seat leakage is not tolerated.
• Closed structure prevents fluid leakage.

Specifications

Item	Specification
Structure	Closed type
Application	Cold and hot water
Working pressure	0.05-1.0 MPa
Working temperature	5-100°C
Connection	JIS10K loose flange

Material:

• Spring case: Stainless steel
• Valve: Stainless steel (SCS14A)
• Valve seat: Stainless steel (SUS316)
• Adjusting spring: Stainless steel
• O-ring: Synthetic rubber (FKM)

Dimensions and Weights

Nominal size	D (mm)	L (mm)	H₁ (mm)	H (mm)	Flow area (mm²)	Weight (kg)
15A	16	63	97	185	20.1	2.4
20A	21	87	101	187	34.6	2.8
25A	26	92	119	215	53.0	4.4
32A	33	99	135	255	93.3	5.2
40A	41	109	140	281	135.2	6.5
50A	51	114	162	332	208.2	11.3

INFO

The outlet flange is 1 size larger than the nominal size.

Discharge Capacity

AL-32T-N for water (accumulation 25%) (Yoshitake standard) Unit: m³/h

Nominal size	0.05 MPa	0.1 MPa	0.2 MPa	0.3 MPa	0.4 MPa	0.5 MPa	0.6 MPa	0.7 MPa	0.8 MPa	0.9 MPa	1.0 MPa
15A	0.4	0.5	0.9	1.1	1.3	1.5	1.6	1.8	1.9	2.0	2.1
20A	0.6	0.9	1.6	2.0	2.3	2.6	2.8	3.1	3.3	3.5	3.7
25A	1.0	1.5	2.5	3.1	3.6	4.0	4.4	4.7	5.1	5.4	5.7
32A	1.8	2.6	4.5	5.5	6.3	7.1	7.8	8.4	9.0	9.5	10.0
40A	2.7	3.8	6.5	7.9	9.2	10.3	11.3	12.2	13.0	13.8	14.6
50A	4.1	5.9	10.0	12.3	14.2	15.9	17.4	18.8	20.1	21.3	22.4

Structure and Parts

No.	Part Name	Material
1	Spring Case	Cast Stainless Steel
2	Valve Seat	Stainless Steel (SUS316)
3	Valve	Cast Stainless Steel (SCS14A)
4	Valve Cover	Stainless Steel (SUS304)
5	O Ring	FKM
6	C Ring	Stainless Steel (SUS)
7	Spindle	Stainless Steel (SUS)
8	Spring	Stainless Steel (SUS304)
9	Bottom Spring Plate	Stainless Steel (SUS)
10	Top Spring Plate	Stainless Steel (SUS)
11	Adjusting Screw	Stainless Steel (SUS)
12	Lock Nut	Stainless Steel (SUS)
13	Cap	Stainless Steel (SUS)
14	Gasket	PTFE
15	Gasket	PTFE
16	Name Plate	Stainless Steel (SUS304)
17	Stub End	Stainless Steel (SUS316)
18	Lap Joint	Stainless Steel (SUS304)
19	Flange	Stainless Steel (SUS304)
20	Flange	Stainless Steel (SUS304)
21	JWWA Label	Polyester (PE)